Soft-db Opus Suite Data Logger Module Manual de usuario

Opus Suite Data Logger Module User Guide – v1.1 2012-12-06 Alto 6-Channel Concerto 4-Channel I-Track 6-Channel Compatible Hardware: Soft dB Inc. 104

9 5.1 Menu Bar File Menu Open Data Allows opening a .wav data file. This launches the Record Viewer Interface (section 9, p.22). Export Graph All

10 6 Setup Interface Click the button on the menu bar to access the Setup Interface. The setup can be saved through the menu FileSave Config or

11 6.1 Input Setup Input Setup Input Enable Set the input switch to or to enable or disable the corresponding input. 1 to 4 inputs can be used

12 Sensor Sensitivity in mV/Unit. This sensitivity is used to present a calibrated signal in the Acquisition and Rec Viewer interfaces. The sensitiv

13 Step 2 Install the calibrator device on the microphone Step 3 Click START After the average time is elapsed, the sensitivity value will update.

14 Wave File Size This indicator informs the user about the maximum size of the wave files (partitions) that will be created. The size depends on th

15 Click the Edit Output button for more details or to modify the generator. 6.4.1 Output Generator interface The output generator is made of a mul

16 would be higher than the maximum range. This is possible when the sum of the Level(%) of all the signals that are mapped to an output is higher th

17 7.1 Measure Controls The RUN Record button starts the acquisition and record the signal into a .wav file. Beside the wave file, a .cfg file is a

18 7.2 General Info Running Time This indicator displays the running time in the format hh:mm:ss (hour:min:sec). Acquisition Buffer State This buf

i CONTENTS 1 Introduction ...

19 7.4 Display Area One or two graph areas can be displayed in the Display Area. Each graph contains two plots. The graph settings can be changed

20 Display Units This control sets the units for the graph and for the global levels. • dB: decibels. • dBA or dB(A): decibels after A frequency

21 The magnified display has a icon at the top left corner. Clicking on this icon pops back the graph to its initial size and position. 7.5 Expor

22 8 Record Viewer Interface The Record Viewer Interface allows a basic analysis of a previously recorded wave signal on a Concerto Unit. Further

23 8.1 Input Info Input Info Input Selection This control selects the input to be displayed among the available ones. Input Description Descripti

24 8.2 File Info Input Info File Name This indicator displays the name of the file being viewed. File Date This indicator displays the starting t

25 Y rescale This button adjusts the Y scale to the graph data. Time format This control sets the time axis format in seconds or in format hh:mm:ss

26 the graph. The X value can be entered manually or defined by pointing to the position on the graph. Remove DC This button can be used to subtrac

27 9 Post-Processing Interface As describe in the table of the section 4, the advanced post-processing functions are not available on the Concerto h

28 calibrated time signal. So, any wave files not recorded with the Opus Data Logger system will not be calibrated (the Change Input Set-up function

ii 9.1 Analysis Functions Tab ... 28 9.1.1

29 At any time, the computation parameters can be changed and the Recompute button can be used to update the results. The Do Graph Autoscale butto

30 This parameter allows adjusting the overlap between the time blocks used for the global levels historic calculation. This parameter can be adjust

31 At any time, the computation parameters can be changed and the recompute button can be used to update the results. The Do Graph Autoscale button

32 This is the type spectrum. Narrow Band, octave, 1/3-octave and 1/12-octave set-ups are possible. The octave, 1/3 octave and 1/12-octave types are

33 At any time, the computation parameters can be changed and the Recompute button can be used to update the results. The next table explains the co

34 The Export statistic function allows exporting the statistics in text format. 9.1.4 Waterfall graph The Waterfall graph module presents the pow

35 Computation parameters Description This is the number of lines of the average power spectra. Possible selections are 1024, 2048, 4096 or 8192 lin

36 The Adjust scales button allows setting the frequency and amplitude scales of the waterfall graph. Unlike on the other two-dimensional graphs o

37 9.1.5 FRF (Hx) The FRF (Hx) module allows computing the average frequency response between channels. The following figure presents the FRF mod

38 H3 using this equation: H3=y/x=(H1+H2)/2 Where x is the reference channel and y the second channel. In theory, all Hx must give the same result.

3 1 Introduction Congratulations on your purchase of the Opus Suite Data Logger module. The Opus Software Suite is a Sound and Vibration software.

39 These controls allow selecting the reference channel (x) and the second channel (y). or These controls allow the integration of the inputs in

40 The ISO2631 standard has one filter for the XY-axes and another filter for the Z-axis. The following curves present the frequency response of the

41 At start-up, the Compute ISO2631 button is yellow. This means that the ISO2631 filters have not been applied and the statistics are not up-to-d

42 9.2 Filter and Integration Tab The Filtering and Integration tab at the bottom of the main post-processing interface includes two filter function

43 The frequency response graph represents the filter response for the current filter parameters. You don’t have to use any button to update the fre

44 This parameter is used only for the Elliptic and Inverse Chebyshev filter types. This parameter is the desired attenuation in the stop band of th

45 The parameters are described in the following table: Integration Parameters Description A simple or double operation can be done. A first (simpl

46 9.3 Signal Extraction Tab The signal extraction tab includes a function for extracting a portion of the signal. This feature is very useful for a

47 Then, the Extract between cursors button is used to launch the extraction. After extraction, the peak value graph looks like this: 9.4 Export/S

48 This function allows saving the selected channel in a wave file. This function also saves the associated configuration file for further analysis

4 2 Compatible Hardware Every hardware option has an embedded state of the art Soft dB SR-MK3 DSP board allowing real-time and precise measurement w

49 10 Explorer Dialog Explorer Window Controls and Indicators File/Folder Operators • Go to parent directory • Open directory • Create new folde

50 11 File Manager The File manager is used to perform most file operations: • Navigate the directory structure • Create folders • Rename files a

51 Directory Path Displays the path of the active directory. Shortcuts Allows easy access to common directories. When the File Manager is used on a s

52 Appendix 1: Concerto Hardware Connections 4 Inputs Mic Stand DC in ¼ 20 insert Power-on button Second Battery 2 Outputs USB port Right click

53 Power on/off Turn On Press the trigger button located at the back of the unit This key has two (2) functions: 1. To turn the unit ON. 2. Start

54 Power Reset If the Concerto happens to crash and it is not possible to take back the control, a power reset might be necessary. To complete the po

55 Inputs and Signal Processing Specifications (Embedded Signal Ranger MK3 DSP Board) DSP Processor Texas Instruments TMS320C6424 Inputs 4 Outputs 2

56 Appendix 2: 1/3 Octave Filters – IEC 61260 Class 1/ANSI S1.11 1/3 Octave Filters The 1/3 octave filters are computed at low-level in real time (at

57 Shape Test Numerical Results at 1 kHz The following table presents the numerical results of the shape test at 1 kHz: Frequency (Hz) Low limit (dB)

58 1/3 Octave Filter Linearity The linearity of the 1/3-octave filter has been measured for both ranges (low and high). The experimentation is done w

5 3 Opus Environment The Concerto unit comes equipped with the Opus Environment. This environment acts as a main interface that gives access to t

59 Frequency (Hz) Saturation Level (dB) Minimum Linear Level (dB) Linear Dynamic Range (dB) Noise Floor (dB) 12500 120.5 27.0 93.5 17.5 16000 120.5

60 Frequency (Hz) Saturation Level (dB) Minimum Linear Level (dB) Linear Dynamic Range (dB) Noise Floor (dB) 10000 132.5 33.5 99.0 23.5 12500 132.5

61 Summation Test (High Range Case)-0.5-0.4-0.3-0.2-0.100.10.20.30.40.510 100 1000 10000 100000Frequency (Hz)Amplitude dB

6 The Quit button will quit the application differently according to the hardware used. Concerto hardware: • Hold 5 sec to shut down the unit. •

7 4 Software Mode The Data Logger software will run in a different mode depending of the hardware it is running on. Depending of hardware used, the

8 5 Main Interface The main interface is separated in two areas: the Interface area and the menu bar at the bottom. The menu bar mainly contains the