称重系统模拟电压—频率比变换电路

Analogue voltage-to-frequency ratio converter in weighing system

分析了模拟电压—频率比变换电路原理 ,给出了元件参数的设计要求及其计算方法。对两路对称变化测量频率的处理使称重系统可进行增重、减重测量 ,电路的调频性适用于各种量程的称重系统。

After the analyses of circuit theory of analogue voltage-to-frequency ratio converter,the design requirement of component parameters and the calculation method are presented.The handling of symmetry change measurement frequency of two lines makes weighing system realize both weight increasing and weight decreasing measurement.Frequency modulation of the circuit is suitable for any weighting measurement system.