Low-temperature calibration device of laser displacement sensor

A technology of laser displacement and calibration device, which is applied in the direction of using optical devices, measuring devices, instruments, etc., to achieve the effects of simple device, flexible and convenient use, and avoiding accumulated errors

Inactive Publication Date: 2015-05-06
COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Laser displacement sensors have been widely used in many fields that require precise measurement and detection.

Method used

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  • Low-temperature calibration device of laser displacement sensor
  • Low-temperature calibration device of laser displacement sensor
  • Low-temperature calibration device of laser displacement sensor

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Embodiment Construction

[0017] The temperature control box 1 (ZL201110055580.0) used in the present invention can independently adjust the temperature value, has a good constant temperature effect, and is easy to operate; the data acquisition instrument 9 selects the DT80 data acquisition instrument of the Australian dataTaker company, and cooperates with the notebook computer 10 to collect data;

[0018] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings:

[0019] Such as Figure 1-3 As shown, a low-temperature calibration device for a laser displacement sensor is composed of four support pillars 14 passing through the four corners of the upper plate 3 of the support, the sensor fixing plate 4, and the four corners of the lower plate 7 of the support. The sensor fixing bracket is placed in a temperature control box 1, wherein, the support upper plate 3, the sensor fixed plate 4, and the center of the support lower plate 7 are p...

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Abstract

The invention relates to a low-temperature calibration device of a laser displacement sensor. The low-temperature calibration device of the laser displacement sensor is characterized in that four leveling nuts are mounted at the bottoms of four support columns, support screws are provided with threads, the nuts sleeve the support screws respectively and are arranged on a sensor fixing plate, the sensor fixing plate is fixed to the four support columns through clamps, the laser displacement sensor below the sensor fixing plate is fixed through a fixing frame and screws, a direct current switch power supply is connected to the laser displacement sensor through a wire, a data acquisition instrument is connected to a laptop through a wire, the data acquisition instrument and the laser displacement sensor are connected to the direct current switch power supply through a wire, and a gauge block is arranged below a support, on the plate and under the laser displacement sensor. The low-temperature calibration device of the laser displacement sensor enables the laser displacement sensor to be used in a permafrost deformation test and can calibrate the laser displacement sensor at a low temperature to verify indicators, such as performance and accuracy of the laser displacement sensor used in the low-temperature permafrost deformation test.

Description

technical field [0001] The invention relates to a low temperature calibration device for a laser displacement sensor. Background technique [0002] Sensor calibration is the process of using standard instruments with higher precision to calibrate the sensor, so as to establish the corresponding relationship between the sensor output and input. At the same time, the error relationship under different conditions of use is also determined. The basic method of calibration is to use a standard instrument to generate a known non-electric quantity as an input quantity, input it into the sensor to be calibrated, and then compare the output quantity of the sensor with the input standard quantity to obtain a series of standard data or curves. Determining the performance indicators of the sensor based on the test data is actually determining the measurement accuracy of the sensor. [0003] Permafrost is a heterogeneous, multiphase, porous, negative temperature discontinuous medium co...

Claims

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Application Information

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IPC IPC(8): G01B11/02
Inventor 杜玉霞赵淑萍明姣张泽
Owner COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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