BSA Flow Software Installation and User's Guide - CSI

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0.1 0.01 0.001 0.0001 0.00001 0.000 0.1 0.01 0.001 0.0001 0.00001 0.000 0.1 0.01 0.001 0.0001 0.00001 0.000 500.000 1000.000 1500.000 2000.000 2500.000 3000.000 Frequency [Hz] 500.000 1000.000 1500.000 2000.000 2500.000 3000.000 Frequency [Hz] 500.000 1000.000 1500.000 2000.000 2500.000 3000.000 Frequency [Hz] Figure 6-54 Filtering a spectrum: Top: Raw spectrum Middle: Papoulis / Width 1.0 (Smoothed spectrum) Bottom: Papoulis / Width 0.2 (Smeared spectrum) (Graphs made using the Advanced Graphics add-on) Input selection The property Input selection is used to select the data for which a spectrum estimate should be calculated. Clicking in the value field will bring up the Select Channels dialog in which the source-data is selected. Please remember that the spectrum object cannot handle more than one arrival time. Multiple inputs (for example LDA1, LDA2 and LDA3) are thus allowed only if they share a common arrival time (i.e. if coincidence filtering has been performed prior to spectrum calculation). If several arrival times are available, only one velocity may be selected, and the software will then automatically use the corresponding arrival time. 6-58 BSA Flow Software: Options and Add-ons
Output from the Spectrum object The Spectrum object is a processing object as identified by the -icon in the project explorer, and like all processing objects it performs calculations, but does not itself present the results. To see the results you can create a Listobject as a child of the Spectrum object. (See Figure 6-55) Figure 6-55 Output from the Spectrum object The minimum output from the spectrum object is two columns as shown in Figure 6-55, but if several inputs sharing a common arrival time have been selected, more columns will be included, corresponding to several spectra estimated at the same discrete frequencies. Frequency The first column of the output from the Spectrum object identifies the discrete frequencies at which power spectral densities have been estimated. Each of the data samples entering this object is time-stamped with an arrival time measured in seconds, yielding frequencies measured in Hz. Spectrum The remaining output columns from the Spectrum object contain the estimated power spectral densities at each of the discrete frequencies in the first column. In the example in Figure 6-55 only one spectrum was calculated, but more may be included. Units Because input to the spectrum calculation can be (Doppler) frequency or velocity, there is no fixed unit on the estimated spectral values, and instead the data-source is indicated in the column header, to help distinguish when multiple outputs are produced. If spectra are calculated from a quantity with the unit [u], the resulting estimate of power spectral density will have the unit [u 2 /s]. If for example power spectral density is calculated from measured velocity with the unit [m/s], the resulting spectral unit will be [(m/s) 2 /s] = [m 2 /s]. BSA Flow Software:Options and Add-ons 6-59
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BSA Flow Software Version 4.10 Inst
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1. General 1.1 Table of Contents 1.
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5.5 Optical Calibrated LDA System p
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7.2.1 Basic principles of phase Dop
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1.2 Dantec Dynamics Licence Agreeme
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1.3 Laser safety All equipment usin
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2. Introduction Congratulations wit
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2.1.9 Analog Monitor Option 2.1.10
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2.3.4 Trouble shooting 2.3.5 On-lin
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3. Installation 3.1 General 3.1.1 P
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Directory structure CPU usage will
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3.2.2 Installation as administrator
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You have the possibility to define
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Click Next and select the add-ons y
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Peer-to-peer connection Processor s
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Click on the Download tab to get th
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The BSA processor will restart. Thi
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• If the Game controller needs to
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Figure 3-2 National Instruments Mea
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3.7 Third party traverse system To
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4. The user interface 4.1 Layout Me
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4. If the mouse pointer was in the
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4.3 Project explorer shortcuts to t
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Figure 4-5 Dialog for adding object
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Using Templates To make a Template,
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4.6 The tool bar Figure 4-6 the pro
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Save As... Figure 4-10 the File men
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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
Page 203 and 204: Figure 6-5 Scale properties for 2D
Page 205 and 206: Property group ‘Display’ Also t
Page 207 and 208: 6.1.3 2D Plot [m/s] 36 34 32 The 2D
Page 209 and 210: 6.1.4 2D Histogram For off-line use
Page 211 and 212: Configuring the 2D Histogram The co
Page 213 and 214: Configuring the 3D Plot Figure 6-21
Page 215 and 216: Figure 6-23 “Interpolate bin” s
Page 217 and 218: Property group ‘Data’ Figure 6-
Page 219 and 220: Coordinate shown on Intercepts the
Page 221 and 222: LDA1-Mean [m/ s] -2,00 -3,00 -4,00
Page 223 and 224: Figure 6-32 Properties of the Vecto
Page 225 and 226: Figure 6-33 shows a velocity vector
Page 227 and 228: 6.1.9 Exporting plots Copying a plo
Page 229 and 230: 6.2 Synchronisation Option 6.2.1 In
Page 231 and 232: Pin Signal Pin Signal 1 Out 1 14 Gr
Page 233 and 234: 6.2.5 Sync. Output Signals properti
Page 235 and 236: Outputs Figure 6-40 Differential sy
Page 237 and 238: Figure 6-42 Cyclic phenomena in the
Page 239 and 240: Cycle length The property Cycle len
Page 241 and 242: It allows to define the number of b
Page 243 and 244: Note It is not possible to have 0 a
Page 245 and 246: Figure 6-47: Output data from the c
Page 247 and 248: performed prior to phase sorting yo
Page 249 and 250: Figure 6-51 Properties of the spect
Page 251 and 252: Blocking Using the FFT-approach to
Page 253: 1,2 1,0 0,8 0,6 0,4 0,2 Weight fact
Page 257 and 258: 6.4.2 Advanced Spectrum object Load
Page 259 and 260: To evaluate the new algorithm, comp
Page 261 and 262: 6.4.3 Correlation object Conclusion
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Page 265 and 266: Time The first column of the output
Page 267 and 268: The Protocol Figure 6-67: Generic t
Page 269 and 270: How to Use the Initialisation Strin
Page 271 and 272: Figure 6-69: Traverse File option i
Page 273 and 274: Properties Output from MATLAB engin
Page 275 and 276: Result window Script Hides and disp
Page 277 and 278: 6.6.2 Calculation object from to
Page 279 and 280: Tip To combine calculated data and
Page 281 and 282: max var. max of all arguments sum v
Page 283 and 284: 6.7.3 Software set-up Once A/D-hard
Page 285 and 286: Figure 6-76 BSA F/P application win
Page 287 and 288: 6.7.7 Analog input specifications J
Page 289 and 290: 6.8.1 Installation 6.8.2 Hardware c
Page 291 and 292: Figure 6-85 BSA F/P application win
Page 293 and 294: 6.9.1 Required hardware 6.9.2 Calib
Page 295 and 296: 2. Select Parameter Input 3. The fo
Page 297 and 298: B. Select Advanced Curve fitting an
Page 299 and 300: 6.10 Mobile system Monitor option T
Page 301 and 302: 7. Reference guide 7.1 Theory of La
Page 303 and 304: 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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