icroflown Technologies B.V.Manual Sound Intensity Microflown Technologies [email protected] T: +31 316 581 490 F: +31 316 581 491 Manual Sound Intensity software Page 1 of 13 ................................. Make the 2D configuration grid . 5 3......................4....................................................V......................................3........................................................................................................................ Setup the software ........................................ Table of contents 1.......1..................................2. 6 3..................... 11 4........ 3 3.............................. Write the report .... 7 4............................ 9 4........................................................... 5 3............................ Bill of materials ......................... Visualize the 2D colormap ............ 5 3..................5........................................................................................ Calibrate the DAQ ......................... Edit the settings . View the measurement data ..... Other Options ...................................2........................................... Measure all the points .........4......................................... Measure the intensity .................................... 9 4......... 13 Manual Sound Intensity software Page 2 of 13 .......................... 10 4.. Intensity software .................... 12 4.............................................................1...................3.... Setup of the system ........................................... 3 2....................................................Microflown Technologies B...................... Signal conditioner and sound card amplifier Manual Sound Intensity software Page 3 of 13 .Microflown Technologies B. Setup of the system Connect all electronics.V. Front view Rear view Figure 1. 1. according to next page. Bill of materials Specified probe Signal conditioner Sound card amplifier Cables o Lemo probe cable o 2 x BNC cables signal conditioner to sound card amplifier o USB sound card cable to computer 2 x 110/230 Volt to 18Volt adaptor + Adaptor cable 2. Connect it to the velocity input of the sound card amplifier Indication led: Low/High gain Indication leds: correction on/off Connection the Lemo cable BNC pressure input. Front view schematics Power switch Power switch Switch gain high/low USB.Microflown Technologies B. Connect it to the pressure input of the signal conditioner BNC velocity input. Overload indication pressure channel BNC pressure output. Connect it to the pressure input of the sound card amplifier Overload indication velocity channel BNC velocity output. Connect it to the velocity input of the signal conditioner Record incidation led. Rear view schematics Manual Sound Intensity software Page 4 of 13 . Connect it to the computer Switch correction on/off Indication led is on when the sound card amplifier is powered Plug the 18 Volt adaptor here Indication led is on when the signal conditioner is powered Plug the 18 Volt adaptor here Signal conditioner Sound card amplifier Figure 3. Connect it to the speaker Signal conditioner Sound card amplifier Figure 2. When it flashes the sound card is busy Turn this knob to vary the speaker volume BNC speaker.V. Global settings 2.exe”. 3. Intensity software 3. Run the Microflown program “MICROFLOWN INTENSITY 1. Follow the set-up procedure installing the Matlab Runtime version necessary for running the software.1” Start Measurement Calibrate DAQ Figure 4A.Microflown Technologies B. Setting window Manual Sound Intensity software Page 5 of 13 .1. only for Windows XP. Main window 3.V.1.2. Setup the software Run the executable “Setup Microflown Intensity V1. Calibration coefficient Calibration Curve Acquisition Settings Figure 4B. Edit the settings Open Edit Settings 1. Be sure user will set a high value of hertz.Microflown Technologies B. Set the input voltage Power switch USB. If correct ID is set. for example > 5000 hz. so one of the signals will become a straight line. example Cu3= inf. If the signal lines will stay the same the wrong audio soundcard is selected - 3. Calibration coefficient Enter the coefficient values for the calibration curves as in the calibration report Some calibration settings are described as inf. (infinitive) in the calibration report. Acquisition settings Enter the sample rate and select the Correct ID.4A) The new soundcards models have the button for the calibration. not the internal audio card. 3. If the soundcard has not the calibration button connect a know input signal in the BNC pressure and velocity input. Press this button when starting the calibration procedure. Calibration window and new soundcard Manual Sound Intensity software Page 6 of 13 . Connect it to the computer Calibration button Indication led is on when the sound card amplifier is powered Plug the 18 Volt adaptor here New Sound card amplifier Figure 5.V. Global settings: Enter the path for saving the measurements and project files In the folder Measuremens the different sessions are divided into subfolder named by date.3. you’ll get correct calibration view. Calibrate the DAQ Select “Calibrate DAQ” from the main window (Fig. 1. and not a 1 curved lin Note: You can check if the right ID is selected by de-connect the P-output or U-output cable. 2. Other Options To manually change the input and output volume of the DAQ (Fig.6): Edit Volume control Input level Output level Figure 6. 3.4.Microflown Technologies B.V. Select edit calibration voltage Enter the right input value for the calibration of the daq (default 0.096Volt Peak). Settings for input and output Volume Level Manual Sound Intensity software Page 7 of 13 . Display different functions in the graph plot: All the curve displayed in each graph can be changed by selection. When Righ-click on the diagram the cascade window show the different plotting options: Right click on The window Option for plotting: Manual Sound Intensity software Page 8 of 13 .Microflown Technologies B. Note: .V. Start Measurement Figure 7. Position the probe in the first point and click Start. Measure all the points chosen for the test. The mark on the probe has to be positioned in front of the measurement surface. Measurement window Move the probe in the second point of measurement and press Start. NOTE: Hold the probe from the bottom with the measurement direction normal to the surface. Hold the probe from the bottom Mark for direction of measurement Manual Sound Intensity software Page 9 of 13 . 4. Measure the intensity 4.V. Check the overload Level in the window.1. Measure all the points Choose a grid for the point by point intensity measurement.Microflown Technologies B. Playback the measurement Open File Time History P-U Weighting Option Figure 8. View the measurement data Switch the tab from Measure to Single File Load the measurement data using the Icon “open recording file”. Manual Sound Intensity software Page 10 of 13 .V.Microflown Technologies B. 4.2. Single file visualization It is possible to play back the velocity and pressure signal for listening. 3.Microflown Technologies B. Configuration window 2. Note: Follow always these four steps in order. Load the measurement files using the button “Load multiple files”. Manual Sound Intensity software Page 11 of 13 .V. Choose the weighting type and press the button Use config. Take a picture of the test setting and load this image using the button “ load background image”. 1. Set the Width and Height number of points and the distance between the points from the Grid Config Window. It is possible to apply the 1/3 octave frequency band for calculation. 4. 3. Make the 2D configuration grid Switch the tab from Single File to 2D configuration. 4. Grid config Load Image Load Data Figure 9. Save the project of the measurement. 3.V. 4. It is possible to display velocity. 4. pressure. 2D colormap visualization Note: It is possible to change the colorbar from: Option Colormap Manual Sound Intensity software Page 12 of 13 . Click the button AR to autorange the colormap range. 1. Use the icon “Make a report” to create a report of the measurement Save project Make report Auto range function Controls for Colormap visualization Figure 10. Set the frequency band and dynamic range to visualize the measurement. 2.4. Visualize the 2D colormap Switch the tab from 2D configuration to 2D colormap. Move the colormap to fit the Photo of the test moving using the stretch and position functions in the controls window.Microflown Technologies B. intensity and reactive intensity. Microflown Technologies B. Export Option Figure 11.5. Edit the report It is possible to export in excel or txt format the measurement data. Edit the text in the report of the test.V. Manual Sound Intensity software Page 13 of 13 . 4. Write the report Switch the tab from 2D colormap to 2D report/export.