称重传感器电路补偿机理及补偿电阻计算  

Weighing sensor circuit compensation mechanism and compensation resistance calculation

作　　者：刘九卿[1] 

机构地区：[1]中国运载火箭技术研究院第702研究所

出　　处：《衡器》2014年第1期23-29,共7页Weighing Instrument

摘　　要：本文介绍了应变式称重传感器电路补偿与调整中的零点温度补偿、零点输出调整、线性补偿、灵敏度温度补偿机理及影响因素,以理论分析为依据,分别推算出零点温度补偿电阻Rt、零点输出调整电阻Rz、线性补偿电阻RL、灵敏度温度补偿电阻RMt的理论与经验计算公式。并简要介绍了这几项电路补偿与调整工艺要点,分析了在生产实践中应用这些补偿电阻计算公式应注意的问题。This paper introduces the strain gauge factor weighing the zero temperature compensation, compensation and adjustment in the sensor circuit zero output adjustment, linear compensation, temperature compensation mechanism of sensitivity and influence, with theoretical analysis as the basis, we calculate out the theory and experience of the zero temperature compensation resistor Rt zero point output adjustment resistor Rs linear compensation resistor RE temperature compensation of the sensitivity of resistance, the calculation formula of RM And it briefly introduces the several circuit compensation and adjustment technology, analysis the calculation formula of the compensation resistor in the production practice that should pay attention to the problem.

关 键 词：称重传感器 弹性元件 电路补偿 零点温度漂移 灵敏度温度误差 补偿电阻 

分 类 号：TH715.1[机械工程—测试计量技术及仪器]