Principle and Application of Three-wire Strain Gauge Temperature Compensation
SHI Mingshan
XIN Changfan
SUN Haodong
Abstract：The barrel is the core component of the gun,and its life is also one of the shortest devices in each component.It plays a decisive role in the life of the gun,so its strain data is very important experimental data.Due to the influence of ambient tem-perature,the resistance of the strain gauge will change with the change of temperature,which makes the strain measurement data have errors.When the ambient temperature changes greatly,this error cannot be ignored.At the same time,the wire between the measurement point and the measurement equipment will also be affected by temperature.When the wire is very long,the wire resis-tance can not be ignored compared with the strain gauge resistance.Therefore,this paper proposes a solution and compares the sin-gle bridge measurement method and the bridge measurement method through calculation and simulation.When the two-wire and three-wire connection is used,the data difference of the output voltage is obtained.From the calculated data and the simulation re-sults,the three-wire connection method is very good,the influence of the wire resistance is improved on the measurement data.
Keywords：strain measurementwire compensationthree-wire strain gauge measurementtemperature compensationcir-cuit simulation
Publication Date：2025-07-20
Online Publishing Date：2025-09-25(First online date of this platform, not the publication date of the document)
Pages：7( 86-92 )