美国 K-Tron Arizona 公司根据有关振弦的基本原理制成了一种振弦式质量传感器。它有一参比振弦和一承载振弦,利用两者振动频率的比值与所加负载间比例关系的变化来称量物体质量。从振弦测量系统中得到的数字信号通过一数字计数器直接送入微 K-Tron Arizona, USA Based on the basic principle of vibrating wire, a vibrating wire mass sensor is made. It has a reference vibrating wire and a supporting vibrating wire, and the mass of the object is weighed by the change of the ratio of the vibration frequency of the two vibrating wires to the proportional relation between the applied loads. The digital signal from the vibrating wire measurement system is fed directly into the micro via a digital counter