Strain Gauge Amplifier Circuits

被引:25
作者
Maundy, Brent [1 ]
Gift, Stephan J. G. [2 ]
机构
[1] Univ Calgary, Dept Elect & Comp Engn, Calgary, AB T2N 1N4, Canada
[2] Univ W Indies, Dept Elect & Comp Engn, Fac Engn, St Augustine, Trinidad Tobago
关键词
Amplifiers; analog circuits; operational amplifiers; resistance measurement; strain; strain measurement; IN TORQUE SENSOR; COMPENSATION; FORCE;
D O I
10.1109/TIM.2013.2246904
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents several amplifier circuits for use with strain gauges. The circuits are inherently linear, produce four times the output of the standard Wheatstone bridge, and can easily be extended to accommodate multiple strain gauges. The implementation platform is the low-cost operational amplifier instead of the more expensive instrumentation amplifier, and circuit functionality has been verified using PSPICE simulations, and laboratory tests.
引用
收藏
页码:693 / 700
页数:8
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