BSA Flow Software Installation and User's Guide - CSI

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6.2 Synchronisation Option ....................................................................................................... 6-33 6.2.1 Installation ...................................................................................................................... 6-33 6.2.2 Synchronisation Inputs ................................................................................................... 6-33 6.2.3 Sync. Input Signals properties........................................................................................ 6-35 6.2.4 Synchronisation Outputs ................................................................................................ 6-36 6.2.5 Sync. Output Signals properties ..................................................................................... 6-37 6.2.6 Checking for encoder pulses........................................................................................... 6-37 6.2.7 Specifications ................................................................................................................. 6-38 6.3 Cyclic Phenomena Add-on .................................................................................................. 6-39 6.3.1 Required hardware.......................................................................................................... 6-39 6.3.2 Inputs to the Cyclic Phenomena Object ......................................................................... 6-39 6.3.3 Cyclic Phenomena object ............................................................................................... 6-40 6.3.4 Properties of the Cyclic Phenomena Object ................................................................... 6-42 6.3.5 Output from the Cyclic Phenomena Object.................................................................... 6-48 6.4 Spectrum and Correlation Add-on ....................................................................................... 6-51 6.4.1 Spectrum object .............................................................................................................. 6-52 6.4.2 Advanced Spectrum object............................................................................................. 6-61 6.4.3 Correlation object ........................................................................................................... 6-65 6.5 Advanced Traverse Add-on ................................................................................................. 6-69 6.5.1 Generic Traverse Driver ................................................................................................. 6-70 6.5.2 Use of External Traverse files ........................................................................................ 6-74 6.6 Calculation and MATLAB ® Link Add-on........................................................................... 6-76 6.6.1 MATLAB ® Link............................................................................................................. 6-76 6.6.2 Calculation object........................................................................................................... 6-81 6.7 Analog/Digital Input Option ................................................................................................ 6-85 6.7.1 Installation ...................................................................................................................... 6-85 6.7.2 Hardware connections .................................................................................................... 6-86 6.7.3 Software set-up............................................................................................................... 6-87 6.7.4 Enabling the analog/digital inputs .................................................................................. 6-88 6.7.5 Individual properties of the analog input channels......................................................... 6-89 6.7.6 Data output .....................................................................................................................6-90 6.7.7 Analog input specifications ............................................................................................ 6-91 6.7.8 Digital input specifications............................................................................................. 6-92 6.8 Analog Monitor Option........................................................................................................ 6-92 6.8.1 Installation ...................................................................................................................... 6-93 6.8.2 Hardware connections .................................................................................................... 6-93 6.8.3 Software set-up............................................................................................................... 6-94 6.8.4 Enabling inputs............................................................................................................... 6-94 6.8.5 Individual properties of Analog monitor channels ......................................................... 6-95 6.8.6 Data output .....................................................................................................................6-96 6.8.7 Specifications ................................................................................................................. 6-96 6.9 LIF and Parametric Analysis Add-on .................................................................................. 6-96 6.9.1 Required hardware.......................................................................................................... 6-97 6.9.2 Calibration procedure ..................................................................................................... 6-97 6.10 Mobile system Monitor option ..................................................................................... 6-103 6.11 BSA Processor Driver Option ...................................................................................... 6-103 7. Reference guide ......................................................................................................................... 7-1 7.1 Theory of Laser Anemometry................................................................................................ 7-1 7.1.1 Summary........................................................................................................................... 7-1 7.1.2 Background....................................................................................................................... 7-1 7.1.3 Characteristics of laser anemometry................................................................................. 7-1 7.1.4 Principles of LDA............................................................................................................. 7-2 7.1.5 Backscatter versus forward scatter LDA .......................................................................... 7-8 7.1.6 Frequency shift ............................................................................................................... 7-11 7.1.7 Signals ............................................................................................................................ 7-15 7.1.8 Seeding ........................................................................................................................... 7-17 7.2 Theory of Phase Doppler Anemometry ............................................................................... 7-21 1-4 BSA Flow Software: General
7.2.1 Basic principles of phase Doppler anemometry............................................................. 7-21 7.2.2 The concept of the DualPDA ......................................................................................... 7-30 7.2.3 Light scattering from small particles.............................................................................. 7-34 7.2.4 Implementing PDA principles and the DualPDA concept ............................................. 7-44 7.3 Setting up a PDA system ..................................................................................................... 7-50 7.3.1 General ........................................................................................................................... 7-50 7.3.2 Optimizing measurement conditions for FiberPDA systems......................................... 7-64 7.3.3 Optimizing measurement conditions for DualPDA systems.......................................... 7-66 7.4 Configuring the PDA receiving and transmitting optics ..................................................... 7-72 7.4.1 Setting the polarization................................................................................................... 7-72 7.4.2 Configuring the PDA receiving optics ........................................................................... 7-73 7.5 Connecting the PDA Detector Unit ..................................................................................... 7-76 7.5.1 The FiberPDA Detector Unit ......................................................................................... 7-77 7.5.2 The DualPDA Detector Unit .......................................................................................... 7-78 7.5.3 Changing interference filters.......................................................................................... 7-78 7.5.4 Configuring the DualPDA system in FiberPDA system ................................................ 7-78 7.6 A guide to define the PDA optical configuration: ............................................................... 7-79 7.7 Catalogue of some common particles.................................................................................. 7-82 7.7.1 How to read the scattering charts ................................................................................... 7-82 7.7.2 Water droplet in air ........................................................................................................ 7-84 7.7.3 Air bubble in water......................................................................................................... 7-86 7.7.4 Air bubble in freon ......................................................................................................... 7-87 7.7.5 Droplet of diesel oil or silica spheres in air.................................................................... 7-88 7.7.6 Bubble of air in diesel oil ............................................................................................... 7-89 7.7.7 Glass sphere in air .......................................................................................................... 7-90 7.7.8 Glass sphere in water...................................................................................................... 7-91 7.7.9 Latex sphere in air.......................................................................................................... 7-92 7.7.10 Latex sphere in water ................................................................................................. 7-93 7.7.11 Data analysis .............................................................................................................. 7-94 7.8 Optical transform................................................................................................................. 7-96 7.8.1 General 3D setup............................................................................................................ 7-96 7.8.2 Example: Symmetrical 3D setup.................................................................................... 7-97 7.8.3 Example: 3D setup with 2D probe axis aligned with w ................................................. 7-97 7.9 Moments (one-time statistics).............................................................................................. 7-99 7.9.1 Weighting factor............................................................................................................. 7-99 7.9.2 Arithmetic Mean diameter............................................................................................ 7-100 7.9.3 Statistical data acquisisiton stop criteria from LDA data............................................. 7-101 7.10 Histograms ................................................................................................................... 7-106 7.10.1 Velocity histogram ................................................................................................... 7-106 7.10.2 Size histogram.......................................................................................................... 7-107 7.10.3 Curve fitting for histograms ..................................................................................... 7-109 7.11 Mean diameters and algorithms for concentration and flux measurements (Diameter statistics) 7-110 7.11.1 Mean diameters (diameter statistics object) ............................................................. 7-110 7.11.2 Flux and concentration algorithms........................................................................... 7-112 7.11.3 Probe Volume Correction (PVC) ............................................................................. 7-120 7.12 Spectral analysis (two-time statistics) .......................................................................... 7-121 8. Trouble shooting ....................................................................................................................... 8-1 8.1 Installation ............................................................................................................................. 8-1 8.1.1 I get error messages trying to run sample projects........................................................... 8-1 8.2 BSA F/P connection cannot be established ........................................................................... 8-1 8.2.1 Find Dantec processors .................................................................................................... 8-1 8.2.2 Peer-to-Peer Configuration .............................................................................................. 8-4 8.3 PDA ....................................................................................................................................... 8-5 8.3.1 Calibration (PDA only) .................................................................................................... 8-5 8.3.2 Phase plot ......................................................................................................................... 8-7 8.4 The traverse system does not move when it should............................................................. 8-10 BSA Flow Software: General 1-5
Page 1 and 2: BSA Flow Software Version 4.10 Inst
Page 3 and 4: 1. General 1.1 Table of Contents 1.
Page 5: 5.5 Optical Calibrated LDA System p
Page 9 and 10: 1.2 Dantec Dynamics Licence Agreeme
Page 11 and 12: 1.3 Laser safety All equipment usin
Page 13 and 14: 2. Introduction Congratulations wit
Page 15 and 16: 2.1.9 Analog Monitor Option 2.1.10
Page 17 and 18: 2.3.4 Trouble shooting 2.3.5 On-lin
Page 19 and 20: 3. Installation 3.1 General 3.1.1 P
Page 21 and 22: Directory structure CPU usage will
Page 23 and 24: 3.2.2 Installation as administrator
Page 25 and 26: You have the possibility to define
Page 27 and 28: Click Next and select the add-ons y
Page 29 and 30: Peer-to-peer connection Processor s
Page 31 and 32: Click on the Download tab to get th
Page 33 and 34: The BSA processor will restart. Thi
Page 35 and 36: • If the Game controller needs to
Page 37 and 38: Figure 3-2 National Instruments Mea
Page 39 and 40: 3.7 Third party traverse system To
Page 41 and 42: 4. The user interface 4.1 Layout Me
Page 43 and 44: 4. If the mouse pointer was in the
Page 45 and 46: 4.3 Project explorer shortcuts to t
Page 47 and 48: Figure 4-5 Dialog for adding object
Page 49 and 50: Using Templates To make a Template,
Page 51 and 52: 4.6 The tool bar Figure 4-6 the pro
Page 53 and 54: Save As... Figure 4-10 the File men
Page 55 and 56: Figure 4-11 Save As compressed proj
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Figure 4-14 the Properties - Summar
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Figure 4-18 The Select Position dia
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Options With the Options you get a
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When Enable error logging is checke
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The fourth format, Significant Digi
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The PDA Optical Configuration objec
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4.7.7 Help menu Figure 4-34 The Hel
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4.9 Message window • by clicking
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PM and Bragg cell connections Warni
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LDA and PDA transmitting optics The
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Click on OK. Note For fully opaque
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In the third step, the software con
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Lightweight Traverse with handbox C
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57G15 Traverse interface Third part
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• right-click the Traverse Server
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4. This brings up the following dia
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To change a setting, click in the V
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Figure 4-39 System monitor in auto-
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14. You have now completed data acq
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4. Check the Show System Monitor wh
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. 8. LDA 1 properties are specific
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11. To monitor the Doppler signals,
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The axes will automatically rescale
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Click Acquire. If a complete new re
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Define the positions that you want
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Select the type of the files to ope
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5. Project explorer objects 5.1 Sta
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Browse to the file you wish to impo
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For each column, the data type must
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5.3.1 Output properties Figure 5-4
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Figure 5-7 The Custom… dialog und
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Figure 5-8 BSA F/P 30: processor pr
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Max. acquisition time: The maximum
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Normal user interface Advanced user
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Figure 5-11 The Bragg cell connecto
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LDA 1, 2, . properties: Range and g
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5.3.4 System monitor It frequently
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Scope: Burst spectrum display Recor
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Overlaid Graphs: used to show the b
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Uncheck the Use default bindings bo
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The calibration data are stored in
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5.6.1 PDA beam system The Beam syst
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Figure 5-24: Fringe direction setti
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5.6.4 Medium properties Medium name
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Software max. limit in mm.: Self ex
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The default address of the National
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Traverse coordinates of a datum poi
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5.7.8 Traverse Mesh generator If yo
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Regions Figure 5-39 Motion pattern,
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Warning Please observe strict secur
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5.9 Export Figure 5-40 Data-sources
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If multiple positions are exported
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5.9.3 Selected columns 5.9.4 Binary
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Data C Headers Programming Examples
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char filename[256] = {0}; strcpy(fi
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Range means that the filter will ap
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5.11.1 Data Properties Note that th
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Figure 5-54. Size histogram (left)
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Figure 5-57. Velocity distribution
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Figure 5-58 list output of 1D PDA d
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The next selection in the context m
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5.13.2 Objects under Merge object A
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N−1 Mean u ∑ ηiui = i= 0 N−1
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Cross-moments The property Cross-mo
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The calculation of ε fails if Umea
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Figure 5-71 General properties of t
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An alternative geometry of a 3D LDA
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Figure 5-75: FiberPDA phase plot. A
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5.16.3 Display properties The defau
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The output quantities of the diamet
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6. Options and Add-ons This chapter
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6.1 Advanced Graphics Add-on The ma
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Figure 6-2 The Tools-Options-Output
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Figure 6-5 Scale properties for 2D
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Property group ‘Display’ Also t
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6.1.3 2D Plot [m/s] 36 34 32 The 2D
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6.1.4 2D Histogram For off-line use
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Configuring the 2D Histogram The co
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Configuring the 3D Plot Figure 6-21
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Figure 6-23 “Interpolate bin” s
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Property group ‘Data’ Figure 6-
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Coordinate shown on Intercepts the
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LDA1-Mean [m/ s] -2,00 -3,00 -4,00
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Figure 6-32 Properties of the Vecto
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Figure 6-33 shows a velocity vector
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6.1.9 Exporting plots Copying a plo
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6.2 Synchronisation Option 6.2.1 In
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Pin Signal Pin Signal 1 Out 1 14 Gr
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6.2.5 Sync. Output Signals properti
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Outputs Figure 6-40 Differential sy
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Figure 6-42 Cyclic phenomena in the
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Cycle length The property Cycle len
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It allows to define the number of b
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Note It is not possible to have 0 a
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Figure 6-47: Output data from the c
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performed prior to phase sorting yo
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Figure 6-51 Properties of the spect
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Blocking Using the FFT-approach to
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1,2 1,0 0,8 0,6 0,4 0,2 Weight fact
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Output from the Spectrum object The
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6.4.2 Advanced Spectrum object Load
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To evaluate the new algorithm, comp
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6.4.3 Correlation object Conclusion
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20 16 12 8 4 0 0.0 0.2 0.4 0.6 0.8
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Time The first column of the output
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The Protocol Figure 6-67: Generic t
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How to Use the Initialisation Strin
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Figure 6-69: Traverse File option i
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Properties Output from MATLAB engin
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Result window Script Hides and disp
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6.6.2 Calculation object from to
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Tip To combine calculated data and
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max var. max of all arguments sum v
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6.7.3 Software set-up Once A/D-hard
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Figure 6-76 BSA F/P application win
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6.7.7 Analog input specifications J
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6.8.1 Installation 6.8.2 Hardware c
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Figure 6-85 BSA F/P application win
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6.9.1 Required hardware 6.9.2 Calib
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2. Select Parameter Input 3. The fo
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B. Select Advanced Curve fitting an
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6.10 Mobile system Monitor option T
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7. Reference guide 7.1 Theory of La
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Doppler effect d0 R(z) Figure 7-1 L
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es e2 e1 U Figure 7-3 Scattering of
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Measuring volume proportional to pa
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Laser fI Beam splitter As indicated
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7.1.6 Frequency shift • Reduce th
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As long as the particle velocity do
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7.1.7 Signals The primary result of
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7.1.8 Seeding Seeding as flow field
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150 90 180 0 180 0 180 0 210 120 24
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7.2 Theory of Phase Doppler Anemome
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D is the particle diameter. βi is
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For reflection (Equation 7-16) The
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Figure 7-21: The effect of changing
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This is the principle of the spheri
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The trajectory effect The slit effe
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Figure 7-28:The DualPDA as a combin
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Figure 7-31: Reflection and refract
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Characteristic scattering angles At
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⎛ ϕ ⎞ ϕ2 = 4arcsin⎜ ⎟ −
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Figure 7-36: The critical angle con
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Using side scatter (reflected light
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Mask Front Lens Eye-piece Spatial f
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Alignment of the eyepiece The focus
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This is often not necessary in 1D a
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For both orientations of polarizati
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Figure 7-46. The effect of changing
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Table of characteristic angles Defi
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n rel ϕ c1 ϕ b0 ϕ c2 ϕ b2 ϕ r2
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Choice of wavelength Choice of mask
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Choice of wavelength and focal leng
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Choice of polarization Choice of sc
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Focal length Transmitter (FiberFlow
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Polarization ring Fixing screw Push
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Aperture plates The particle size r
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Tighten the cable securely at each
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Disconnect the receiving fiber V1 f
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Step by step procedure Phase-Dopple
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Lower half: The lower half of the b
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Recommended acceptance angles of th
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7.7.4 Air bubble in freon Character
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7.7.6 Bubble of air in diesel oil C
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7.7.8 Glass sphere in water Charact
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7.7.10 Latex sphere in water Charac
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Blocking increases calculation spee
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In this particular example we get:
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7.9 Moments (one-time statistics) 7
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1 = N Mean D mean ui (7-31) N ∑
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Software implementation Updating me
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u v 2 2 = = ∑ ∑ tU tV 2 2 − 2
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(histogram properties). ni is the n
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volume is calculated for the class
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D30 The volume mean diameter is cal
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Three further factors are however i
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d e ln 2 max 2 V do ∗ Vt = ( 7-48
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Diameter bins The number of diamete
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Trajectory dependent detection area
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Corrected particle Max d e ( Di ) C
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Integral time-scale τI Definition
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The mean values of u(t) and v(t) ar
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Low pass filtering & Step noise Obv
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fc ≡ t 1 2 ∆ If the true signal
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Estimator bias Estimator variance S
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-again S’(f) is used to distingui
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Zero padding Often the sampling per
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As an example the Hanning window is
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The Explorer window will now look s
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8.2.2 Peer-to-Peer Configuration Co
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. High Voltage or Figure 8-3: Calib
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Invalid particles in the corners Th
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Gaussain beam effect The following
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To check for connection, right-clic
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