Temperature drift error compensation of wireless strain acquisition node

ZHANG Fu-sheng; WANG Da-zhi; LIANG Jun-sheng; WANG Ke; LIU Chong; WANG Tian-rao

doi:10.13873/j.1000-97872013.10.037

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Temperature drift error compensation of wireless strain acquisition node

更新时间：2025-09-11

- Temperature drift error compensation of wireless strain acquisition node
- Vol. 32, Issue 10, Pages: 27-29+33(2013)
- 作者机构：
  
  1. 大连理工大学辽宁省微纳米技术及系统重点实验室
  2. 苏州鼎汗传感网技术有限公司
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872013.10.037
  CLC： TP274.2
- Published：2013
- 稿件说明：
移动端阅览
[1]张富生,王大志,梁军生,王轲,刘冲,王天娆.无线应变采集节点的温漂误差补偿[J].传感器与微系统,2013,32(10):27-29+33.

ZHANG Fu-sheng, WANG Da-zhi, LIANG Jun-sheng, et al. Temperature drift error compensation of wireless strain acquisition node[J]. 2013, 32(10): 27-29+33.
[1]张富生,王大志,梁军生,王轲,刘冲,王天娆.无线应变采集节点的温漂误差补偿[J].传感器与微系统,2013,32(10):27-29+33. DOI： 10.13873/j.1000-97872013.10.037.

ZHANG Fu-sheng, WANG Da-zhi, LIANG Jun-sheng, et al. Temperature drift error compensation of wireless strain acquisition node[J]. 2013, 32(10): 27-29+33. DOI： 10.13873/j.1000-97872013.10.037.

摘要

温度变化时

无线应变采集节点存在温漂误差

这会影响测量精度。造成温漂误差的主要原因是电桥上桥臂电阻温度系数的差别。根据温度与温漂误差的关系

利用实验方法预先测出一些典型温度点的节点温漂误差

再采用三次样条插值算法对测量数据进行修正

实现对无线应变采集节点温漂误差的软件补偿。实验表明:在25

7℃温度范围内

补偿后节点的温漂误差小于±10×10-6/℃

与补偿前相比误差降低了75%

并且在利用模拟装置测量无缝线路纵向温度力时

测量精度得到显著提高。

Abstract

When temperature of environment varies

wireless strain acquisition node has temperature drift error which affects its measurement precision.Main reason of temperature drift error is difference between temperature coefficients of bridge arm resistances.According to relationship between temperature drift error and temperature

premeasure node temperature drift error of some typical temperature point by experimental method

cubic spline interpolation algorithm is adopted to correct measurement datas

realize software compensation of temperature drift error of wireless strain acquisition node.Experimental result shows that temperature drift error is less than±10×10-6/℃ after compensation

which is reduced by 75% compared with which is before compensation

within the temperature range of 25

7 ℃

and the measurement precision is also significantly improved while measuring longitudinal temperature force of continuous welded rails by simulation device.

关键词

Keywords

references

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