多传感器电子秤非线性补偿电路的研究

Research on multi-sensor electron balance nonlinear compensation circuit

介绍了改进多传感器电子秤的计量精度及稳定性的实现方案。根据称重系统在实际应用过程中的测量精度情况,对系统中所用传感器作受力分析。通过对影响称重系统精度的性能指标因素的研究,改进称重系统结构,增强系统稳定性。讨论并分析多传感器系统非线性造成的原因,根据传感器的输入输出特性曲线,应用动态补偿电路对多传感器进行线性化处理,从而以硬件手段实现系统的优化,使电子秤称重系统精度和稳定性得到了很大改善。

A improving scheme of realizing the precision and the stability of the multi-sensor electron balance is presented. Considering the conditions of weighing system, the forces of sensors are analyzed and the system structure is improved to enhance the system stability by the research of the factors which affect the weighting system precision. The causes of nonlinear of the multi-sensor system are discussed. According to the sensor input- output characteristic curve,linear of muhi-sensor is processed by the dynamic compensative circuit. The system is optimized by the means of hardware. System precision and stability is greatly improved.