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A sensor calibration system

A technology for calibrating systems and sensors, applied in instruments, measuring devices, etc., can solve problems such as poor performance, and achieve the effect of improving efficiency, reducing errors, and comprehensive functions

Active Publication Date: 2020-11-03
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current automatic calibration has poor comprehensive calibration performance and cannot meet the actual needs.

Method used

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  • A sensor calibration system
  • A sensor calibration system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] see figure 1 As shown, a sensor calibration system of this embodiment includes a motor 1, an angle measuring device 2, a transmission shaft 3, a grooved roller 4, a flexible rope 6 and a support frame 7;

[0018] The motor 1 is installed on the support frame 7, the output end of the motor 1 is connected to the transmission shaft 3, the transmission shaft 3 is rotated and installed on the support frame 7, the grooved roller 4 is inserted on the transmission shaft 3, and the transmission shaft 3 is also equipped with The angle measurer 2 that measures the angle of rotation of the roller 4 is wound with a flexible rope 6 in the groove of the roller 4, and the lower end of the flexible rope 6 is fixed on the existing stretchable elastic sensor 5 installed on the support frame 7.

[0019] The motor 1 can receive a control signal to realize rotation at a specified speed in a clockwise or counterclockwise direction and at a specified angle. In order to ensure that the rotatio...

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Abstract

The invention relates to a calibration device, in particular, a sensor calibration system. The sensor calibration system includes a motor, an angle measurer, a transmission shaft, a grooved rolling wheel, a flexible rope and a supporting frame; the motor is installed on the supporting frame; the output end of the motor is connected with the transmission shaft; the transmission shaft is rotationally installed on the supporting frame; the grooved rolling wheel is inserted into the transmission shaft; the transmission shaft is provided with the angle measurer for measuring the rotating angle of the rolling wheel; the flexible rope is wound in the groove of the rolling wheel; and the lower end of the flexible rope is fixed on an existing stretchable elastic sensor arranged on the supporting frame. The sensor calibration system has the advantages of compact structure and reasonable design. With the sensor calibration system adopted, dynamic response capability under different deformation speeds can be realized, so that comprehensive calibration can be completed.

Description

technical field [0001] The invention relates to a calibration device, in particular to a sensor calibration system. Background technique [0002] In the field of flexible robots, elastic sensors are commonly used to measure the deformation of flexible bodies. Before using the elastic sensor, it is necessary to calibrate the sensor to obtain the corresponding relationship between its input and output, and to determine the static index (linearity, sensitivity, hysteresis, etc.) and dynamic index (response time, etc.) of the sensor . [0003] Currently, there are mainly two calibration methods for elastic sensors, namely manual calibration and automatic calibration. Manual calibration refers to manually keeping the displacement input of the elastic sensor at a certain value, then measuring its electrical signal output, and repeating the experiment continuously to obtain the input-output relationship. This calibration method is extremely cumbersome when the amount of data req...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/32
CPCG01B21/32
Inventor 别东洋韩建达林家能
Owner NANKAI UNIV