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A temperature compensation method for strain sensor

A strain sensor and temperature compensation technology, which is applied to instruments, weighing equipment using elastically deformable parts, measuring devices, etc., can solve the problems of low intelligence, low cutting accuracy, and cumbersome operation, and improve cutting accuracy , Improve cutting efficiency and avoid errors

Active Publication Date: 2019-02-19
RUIMA ELECTRIC MFG FUJIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The compensation wire for temperature compensation in the prior art is generally measured and cut with a ruler, which is cumbersome to operate, low in intelligence, and low in cutting accuracy

Method used

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  • A temperature compensation method for strain sensor
  • A temperature compensation method for strain sensor
  • A temperature compensation method for strain sensor

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0042] Such as Figure 1-7 As shown, in the first embodiment of the present invention, a temperature compensation method for a strain gauge sensor is provided, including the following steps:

[0043] S1. Create or collect a label set on the strain gauge sensor, and record the label in a computer-readable form;

[0044] S2. Collect the temperature coefficients of resistance of the four bridge arms of the strain gauge sensor respectively, determine the bridge arm to be compensated, calculate the length L of the compensation wire 100, and record the length L of the compensation wire 100 corresponding to the label;

[0045] S3. The compensation wire automatic cutting device 200 collects the label of the strain sensor, and cuts out the compensation wire 100 with a length L;

[0046] S4. According to the bridge arm to be compensated displayed by the compensation ...

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Abstract

The invention discloses a temperature compensation method of a strain gauge transducer, wherein the temperature compensation method relates to the field of strain gauge transducer manufacture. The temperature compensation method comprises the following steps of S1, creating or acquiring a label which is arranged on the strain gauge transducer, and recording the label; S2, respectively acquiring resistance temperature coefficients of four bridge arms of the strain gauge transducer, determining a to-be-compensated bridge arm, solving a compensation wire length L, and correspondingly recording the compensation wire length L and the label; S3, acquiring the label of the strain gauge transducer by compensation wire automatic cutting equipment, and cutting the compensation wire with length of L; and S4, according to the to-be-compensated bridge arm which is displayed by the compensation wire automatic cutting equipment, connecting the compensation wire with the to-be-compensated bridge arm. According to the temperature compensation method, the label on the strain gauge transducer is acquired in a computer-readable manner; and furthermore a compensation wire parameter which corresponds with the label is recorded, thereby realizing no requirement for artificial recording and preventing errors. The compensation wire with the preset length is cut through the automatic cutting equipment, thereby improving cutting efficiency and improving cutting precision.

Description

technical field [0001] The invention relates to the field of load cell manufacturing, in particular to a temperature compensation method for a strain gauge sensor. Background technique [0002] In the field of load cells, due to the influence of temperature on the strain gauge and the elastic body, the resistance value of the strain gauge changes, resulting in inaccurate weighing measurement, that is, zero temperature drift, and temperature compensation is required. Generally speaking, temperature compensation is measured and compensated when the load cell has no external load, so the temperature compensation of the load cell is also called zero temperature compensation. Generally, materials with large temperature coefficients such as copper, nickel resistance and cobalt-nickel alloy are used for zero point temperature compensation to ensure compensation accuracy [0003] In the prior art, the compensation wire for temperature compensation is generally measured and cut with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G3/18
CPCG01G3/18
Inventor 林金田林元霞
Owner RUIMA ELECTRIC MFG FUJIAN
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