应变式测力传感器由于其精度高,测量范围广,寿命长,结构简单,频响特性好,能在恶劣条件下工作等特点,被广泛应用于铁路货运称重计量及安全监测领域。本文主要介绍了应变式测力传感器的工作原理及性能指标,以及在铁路安全监测技术领域的重要应用。 Strain gauge load cell is widely used in the field of railway freight weighing measurement and safety monitoring because of its high precision, wide measurement range, long life, simple structure, good frequency response characteristics and workability under harsh conditions. This article mainly introduces the working principle and performance index of the strain type load cell, as well as the important application in the railway safety monitoring technology.