CLIOwin 7 PCI User's Manual - Audiomatica

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The graphs refers to a linearity measurement of a Push Pull tube amp. After processing, the Y scale can be expanded, still including the whole span, greatly enhancing detail inspection. 14.2.1 TOOLBAR DROP DOWN LIST Input channel Selects the input channel configuration 14.2.2 LINEARITY&DISTORTION SETTINGS DIALOG X Axis Values Allows setting the X axis extreme left and right values. Has immediate effect, once OK is pressed, and has only graphical implication; that is it does not affect the actual or next measure span. X Axis Unit Can be either Volts or Watts. Has immediate effect and the curve is recalculated accordingly. Changing the impedance in the sweep settings does not affect results as the impedance set at measuring time is taken for calculation. When Vs. input is selected in the X Axis Vs., Volts is forced and the choice disabled. X Axis Vs. Selects if the X axis represents DUT output or input values. Input Values can only be expressed in Volts. Y Axis Scale Selects how the Y axis is displayed. When anything but Linearity is selected in the Analysis radio button panel, selecting Volts/% will display distortion in percent in 174 Chapter 14 - Linearity & Distortion
a bi-logarithmic graph. Selecting dB will plot distortion in dB below fundamental/s. When Linearity is selected dBV or Volts will be used as Y Unit. If the compute linearity button is pressed dB or V/V are used. Sweep Settings These are all settings affecting the next measure to be performed. Must be therefore handled with care. Start and Stop set the voltage sweep range supplied to the DUT input. Start should be lower in value than Stop. While these values can be chosen in an iterative way, having a rough idea of the DUT gain is a good practice. Notice however that keeping the DistLim parameter to or lower than 10% would prevent hard overload of the DUT. Sweep range stops anyway when the maximum allowed distortion is reached, whatever Stop value is chosen. Stop value cannot be grater than 3V, being this the CLIO’s limit. Step set sweep resolution in logarithmic equal step. DistLim set, in percentage, the maximum allowed distortion before the sweep stop anyway. Imp, in Ohm, set the impedance used by the system to calculate power. Should obviously be set to the real impedance that loads the DUT. Changing this value after the measurement has no effect on an already done measure; the value should be correct before the measure is taken. Att set the value of an eventually used passive attenuator placed on CLIO’s input. CLIO’s input accept up to 100VRMS, that is 1250W/8Ohm. Should you need more, use a resistors divider on the input and set the Att value accordingly. Advised value are 90-10 Ohm to divide by 10. Analysis Through this radio button control the analysis type is selected. Linearity measure the output Voltage Vs input Voltage. Output level is measured through FFT looking only at the amplitude of the generated tone. That is harmonics noise or other is not considered in the output level. THD measures Total Harmonic Distortion. Again distortion level is calculated via FFT and therefore noise is not taken in account. These, in some limited cases, at lower level, yields to slightly different results than those obtained via traditional THD+noise measurements. This approach is, however, more accurate. For setting the measurement frequency please see below. SMPTE measures Intermodulation distortion using SMPTE standard. Two tones are generated in a 4:1 ratio at 60Hz and 7000Hz. Intermodulation components up to the 5 th order are considered for distortion. Chapter 14 - Linearity & Distortion 175
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ELECTRICAL & ACOUSTICAL TESTS User'
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CONTENTS 1 INTRODUCTION ...........
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7.10 SIGNAL FILES .................
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14.1 INTRODUCTION .................
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AUDIOMATICA’S WARRANTY Audiomatic
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12 Chapter 1 - Introduction
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2.1 THE PB-4281 PC BOARD AND SC-01
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2.2.3 THE MIC-01 (OR MIC-02) FREQUE
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2.4 THE QCBOX MODEL 4 AMPLIFIER & S
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2) 2 x Stereo mini jack to two RCA
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3.3 HARDWARE REGISTRATION WITH WIND
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3.3.2 HARDWARE REGISTRATION UNDER W
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3.3.3 HARDWARE REGISTRATION UNDER W
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Figure 3.21 Let's now verify that t
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3.4 SOFTWARE INSTALLATION This para
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3.6 RUNNING CLIOWIN FOR THE FIRST T
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3.7.1 CALIBRATION VALIDATION Figure
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3.9 TROUBLESHOOTING CLIO INSTALLATI
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4.3 CLIOWIN DESKTOP The CLIOwin des
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4.5 HARDWARE CONTROLS TOOLBAR 4.5.1
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4.5.4 MICROPHONE CONTROL Switches C
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4.6.2 CONTROLLING A TURNTABLE Fig.4
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4.7.2 ANALYSIS MENU The Analysis me
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Fig. 4.16 Sinusoidal Submenu Fig. 4
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4.7.3 CONTROLS MENU The Controls Me
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4.8 BASIC CONNECTIONS In order to c
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4.8.3 CONNECTING THE CLIOQC AMPLIFI
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T&S parameters data files. Wow&Flut
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Invokes the Autosave Settings dialo
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5.3.4 PRINTING Enters the Notes dia
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customize up to 6 different color s
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5.7.1 SAVING MEASUREMENT SETTINGS M
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6.3 BUTTONS AND CHECKBOXES Moves (s
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6.6 THE MLS TIME DOMAIN DISPLAY Whe
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The following figure shows a 1031.2
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7.4 MULTITONES It is possible to ge
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7.6 MLS It is possible to generate
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7.8 The following figure shows a 20
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The following figure shows the same
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For comparison with Pink noises the
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The following figure shows a msampl
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84 Chapter 7 - Signal Generator
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8.2.1 TOOLBAR BUTTONS Starts the me
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This is substantially the measureme
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With the Multi-meter running, fit t
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8.6 INTERACTION BETWEEN THE MULTI-M
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9.2.1 TOOLBAR BUTTONS, DROP DOWN LI
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9.4 FFT SETTINGS DIALOG Fig. 9.2 Th
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A better approach is to center the
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it is necessary to remove the fligh
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80.0 CLIO dBSPL 70.0 60.0 50.0 40.0
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9.10 “LIVE” TRANSFER FUNCTION A
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Another factor of maximum importanc
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The last obstacle you may find whil
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10.2.1 TOOLBAR BUTTONS Starts an ML
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Amplifier & SwitchBox Model 2,3 and
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10.4 MEASURING FREQUENCY RESPONSE I
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150.0 CLIO 180.0 150.0 CLIO 180.0 O
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speaker we are testing is a gloriou
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10.4.4 PHASE & GROUP DELAY We used
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etween true phase, as in Fig.10.22,
Page 124 and 125: 10.5 OTHER TIME DOMAIN INFORMATION
Page 126 and 127: utton. Any process you execute can
Page 128 and 129: 10.7 MLS Vs. LOG CHIRP As anticipat
Page 130 and 131: 10.8 RELATED MENUS The dual domain
Page 132 and 133: Display fifth harmonic distortion,
Page 134 and 135: Gating (Acquisition) Settings Gated
Page 136 and 137: 11.3 A BRIEF DESCRIPTION ON SETTING
Page 138 and 139: 11.3.3 GATING Enabling Gating allow
Page 140 and 141: 11.4 DISTORTION AND SETTINGS Sinuso
Page 142 and 143: Finally Fig.11.12 shows the distort
Page 144 and 145: 12.2 WATERFALL AND DIRECTIVITY CONT
Page 146 and 147: 12.3.2 WATERFALL OPERATION As alrea
Page 148 and 149: Figure 12.5 One powerful way to ins
Page 150 and 151: 12.5 DIRECTIVITY SPECIFIC CONTROLS
Page 152 and 153: 12.6 MEASURING AND REPRESENTING LOU
Page 154 and 155: 12.6.4 REPRESENTING POLAR DATA To r
Page 156 and 157: 156 Chapter 12 - Waterfall and Dire
Page 158 and 159: If you are a novice in using CLIO,
Page 160 and 161: life harder even if more interestin
Page 162 and 163: 13.4 I SENSE This requires Audiomat
Page 164 and 165: 0.0 CLIO 180.0 dBV Deg -10.0 108.0
Page 166 and 167: CLIO INPUT A INPUT B OUTPUT A OUTPU
Page 168 and 169: 13.7 THIELE & SMALL PARAMETERS 13.7
Page 170 and 171: L 1kHz L 10kHz Inductance at 1kHz I
Page 172 and 173: We can now save our complete result
Page 176 and 177: DIN measures Intermodulation distor
Page 178 and 179: 15.2.1 TOOLBAR BUTTONS AND DROP DOW
Page 180 and 181: 15.3 ACOUSTICAL PARAMETERS SETTINGS
Page 182 and 183: RTU [s]. Reverberation time evaluat
Page 184 and 185: 184 Chapter 15 - Acoustical Paramet
Page 186 and 187: 16.2.1 TOOLBAR BUTTONS AND DROP DOW
Page 188 and 189: 16.3 Leq SETTINGS Time resolution S
Page 190 and 191: 17.3 FEATURES Figure 17.2 Aside a s
Page 192 and 193: 192 Chapter 17 - Wow & Flutter
Page 194 and 195: [20] D. Clarke, “Precision Measur
Page 196: 196 Norms
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CLIOwin 7 PCI User's Manual - Audiomatica

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