Advertisement
Quick Links
Advertisement
Related Manuals for ONOSOKKI DS 0297
Summary of Contents for ONOSOKKI DS 0297
- Page 1 DS-2000 Series Sound Level Measurement ONO SOKKI CO., LTD.
-
Page 2: Sound Level Measurement
Sound Level Measurement Target: Measurement of sound level generated from a drive unit having a gear under a steady operating condition and a condition where the number of rotations is dynamically changed. Purpose: Measurement of sound level How much is level variation? What should be done as noise reduction measures? Equipment: Equipment Name... -
Page 3: Connecting Devices
1. Connecting Devices 1-1. Connection Diagram 1-2. Connection Procedure (1) Connect the power adapter to the personal computer. (2) Connect the power adapter to the DS-2000. (3) Insert the protection key into the personal computer. (4) Connect the interface (ONOLINK II (Card)) between the personal computer and the DS-2000. (5) Connect the both-ends BNC cable between the measurement microphone and the DS-2000 Ch1 input. - Page 4 2. Activating and Checking Devices 2-1. Turning the Power On (1) Set the power switch on the front panel of theDS-2000 to the upper position. The green lamp of the switch lights up. (2) Turn on the power of the personal computer. The Windows OS starts.
- Page 5 (3) Setting an input source Select Voltage Range from the Input menu. Set SENSOR(2.0mA) as a signal from MI-3110 (BNC in the case of voltage input). (4) Set an input voltage range. Select Voltage Range from the Input menu. Select a minimum value with which the OVER LED does not light up, from this (5) Start data sampling.
- Page 6 (6) Change the display gain. Use the tool bar. Click these buttons (△ and ▽). When checked, all the displayed scales will be changed. Clicking △ decreases this value (magnifies small data). Clicking ▽ increases this value (small data is not displayed). Make sure that the signal from the sensor (microphone) can be correctly analyzed.
- Page 7 3. Calibrating the Sensor (Microphone) 1. Insert the tip of the microphone into the calibrator. 2. Turn on the calibrator. 3. If the input over LED is list, increase the voltage range. 4. Perform calibration. (1) Select Unit / Calibration from the Input menu. Then, click here.
-
Page 8: Measurement And Analysis
4. Measurement and Analysis 4-1. Frequency Analysis of Sound Level (1) Select the dual-screen mode and display the time-axis waveform at the top and the power spectrum at the bottom. Select Display Layout from the right-click menu and then select Dual in the Display Conditions dialog. Select Dual (up to Octuple (x8)). - Page 9 (3) Select a voltage range that does not cause input-over. (4) Perform data sampling. Monitor in the instantaneous mode. Create analysis data in the averaging mode. (5) Viewing data Time waveform Random The same pattern is waveform is repeated. contained. Power spectrum Repetition time (period) can be grasped.
- Page 10 4-2. Saving Data (1) Saving the displayed screen data in a file Select Save Data (Show) from the File menu. Enter file name (group name) for saving data. Generates a file name For the dual screen mode, two files will be created. consisting of group name and number.
- Page 11 (2) Saving data of specified type in a file Select Save Data (Select) from the File menu. (3) Saving text in a text file...
- Page 12 (4) Saving as an image file Select Copy Setup from the Edit menu, select Bitmap, and execute Copy. Example of data pasted to "Paint" (5) Pasting data to Office application software. Select Copy Setup from the Edit menu, select Text, and execute Copy. Example of data pasted to "Excel"...
- Page 13 4-3. Comparing Sound Level (1) Select the dual-screen mode. Select Display Layout from the right-click menu and then select Dual in the Display Conditions dialog. (2) Load file data to be used as reference data in the top screen. Click the top screen to activate it. Then, select Open Data from the File menu. (3) Load file data to be compared with the reference data in the top screen.
- Page 14 (5) Select the Dual and Overlay display modes. Select Display Layout from the right-click menu and then check Overlay in the Display Conditions dialog. Blue dotted line: Comparison data Red solid line: Reference data (6) Use the cursor function. When you click in the screen, the frequency and sound level value can be read directly. 4-4.
- Page 15 (2) Set the following tracking conditions. Range of number of rotations subjected to tracking Rotational pulse condition Number of blocks to be sampled Maximum analysis order (3) Starting tracking analysis With the TRACK tool button pressed, click START. (4) Tracking display...
-
Page 16: Tracking Display
Tracking display of specified order (5) Viewing data of tracking results (up to 4th order) Overall is used to determine overall sound level variation. Data of specified order is used to search for individual sound factor. Order spectrum at any desired rpm Slanted axis assigned rpm Components in... - Page 17 5. Ending process 5-1. Turning the Power Off When analysis software is activated, do not turn off the power of DS-2000. (1) Normally terminate Windows OS of the personal computer. (2) Turn off the power of DS-2000 (DS-2104). 5-2. Disconnection (1) Disconnect the signal cable between the HT-5200 and EXT Sample of DS-2000.