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Lab Manual
OPTEX-FA
LASER DISPLACMENT SENSOR
Laser Head CD4-L30 / Controller CD4A-LN / DBU-120A
Prepared by
Tran Ngoc Dang Khoa
ElectroMechanical Energy Laboratory
May 2016
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Contents
1. Objectives ................................................................................. 3
2. Instruments ................................................................................ 3
3. System ....................................................................................... 4
4. Overview of DBU-120A .......................................................... 4
5. Procedure .................................................................................. 8
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1. Objectives
1.1 This manual describes steps to measure vibration using laser displacement
sensor.
1.2 Understand the control parameters of monitoring software LK-Navigator 2,
and learn the techniques to measure vibration even for transparent materials,
at ultrasonic speed, in different unit scales (mm, µm).
2. Instruments
2.1 Laser head CD4-L30
2.2 Power supply 12VDC
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2.3 Controller CD4A-LN
2.4 Data acquisition system DBU-120A
2.1 Monitor software Measurement
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3. System
Figure 1: System connection
2.1 Connect system follow figure 1.
Figure 2: DBU-120A connection
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Output: GND
Output: Voltage
Input from laser head
Input from
power supply
Figure 3: Controller connection
2.2 Measurement is monitored from the computer by Measurement
software.
4. Overview of LK-Navigator 2
4. Procedures
Measurement is a software for configuring parameters and monitoring the DBU-120A
controller. It is used by connecting a computer and the controller to configure parameters
and monitor operating status.
Procedure steps:
1. Setup the instruments as the Figure 1 on page 5.
2. Start Measurement on the computer
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3. On the interface, click on Setup button
Setup
Channel of
connected
device
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4. On the set DB condition tab, setup value of parameters:
5. Check all 3 checkboxes on the top left of Set DB condition. And click OK.
6. Click Monitor button to read the weight value from sensor.
In no-load condition, click Balance button to offset the weight to zero.
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7. Set recording data file: save data file with the file name, and starting number of the
extensions (for multiple data files).
Monitor Balance Double-click
to set upper,
lower limit Sampling
frequency
Number
of data
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8. An example of reading displacement value:
9. REMEMBER to safely remove DBU-120A device after using.
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