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A torque sensor calibrating method

A technology of torque sensor and calibration method, applied in the field of sensor measurement, can solve the problems of complicated calibration operation, high cost, poor applicability, etc.

Inactive Publication Date: 2016-04-06
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is how to solve the problems of expensive calibration of existing torque sensors, complicated calibration operations, low calibration accuracy, and poor applicability, and provide a torque sensor calibration method

Method used

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Examples

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Embodiment

[0035] Example: see figure 1 , figure 2 , a torque sensor calibration method, in the calibration process need to use a special calibration bench, the calibration bench includes a mounting base, a loading arm 2, a long arm mounting seat 3, a weight tray 4, a torque sensor to be calibrated 5 , Leveling jib 6, jib mount 7 and leveling cylinder 8. The installation base includes a base plate 11 , an installation base plate 12 and a support rod 13 connecting the installation base plate 12 and the base plate 11 ; wherein, the width of the base plate 11 is greater than that of the installation base plate 12 . The long arm mounting seat 3 is fixed on one end of the mounting base plate 12, and the long arm bearing seat is fixed on the long arm mounting seat 3, and the middle part of the loading long arm 2 is connected with (one end of) the long arm connecting shaft. The long arm connecting shaft is installed on the long arm bearing seat through the long arm connecting bearing. The w...

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Abstract

The invention discloses a torque sensor calibrating method comprising the following steps: 1) a to-be-calibrated torque sensor is installed on a calibrating stand; 2), counterweights are loaded on an end of a long arm, and meanwhile, a leveling cylinder is used to support a leveling short arm; lifting-up of the leveling short arm is carried out by the leveling cylinder until the loading long arm returns to a horizontal state; 3), the step 2) is repeated and an output voltage of the to-be-calibrated torque sensor is recorded; 4), one counterweight is unloaded, and adjusting is carried out on the leveling short arm through utilization of the leveling cylinder until the loading long arm returns to the horizontal state, and the output voltage of the to-be-calibrated torque sensor is recorded; 5), the step 4) is repeated until the unloading finishes and one calibrate cycle ends; 6), a calibrating model is established and subjected to resolving to obtain calibration coefficients; and 7) the step 2) to step 6) are repeated for five times to examine repeatability of the data. The method of the invention is simple in calibrating operation, high in calibrating precision, low in calibrating cost and strong in applicability.

Description

technical field [0001] The invention relates to the technical field of sensor measurement, in particular to a torque sensor calibration method. Background technique [0002] The automobile transmission system is one of the important parts of the automobile. Its transmission system is mainly composed of the transmission and shaft parts, which play the role of transmitting speed and torque for the driving of the automobile. The transmission system of the automobile is subjected to the action of torque during the actual driving process, causing damage to its parts and assemblies and failure. In order to study the destructive failure caused by the load it is subjected to, it is necessary to use a torque sensor to measure its load. The accuracy of load measurement is not only related to the sensor manufacturing accuracy and sensor installation accuracy, but also is crucial to the sensor calibration and calibration accuracy. [0003] The calibration of the sensor needs to be cal...

Claims

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Application Information

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IPC IPC(8): G01L25/00
CPCG01L25/003
Inventor 邹喜红施全石晓辉张志刚郝建军罗洋刘瑜
Owner CHONGQING UNIV OF TECH
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