岩土压力传感器匹配误差的特性

在介绍了岩土压力传感器匹配误差概念的基础上，论述了匹配误差的稳定性、等效性、真实性和实用性以及各特性之间的相关性。通过研究得出：匹配误差特性的核心是稳定性；传感器刚性饼状设计是保证稳定性的必要条件；等效匹配误差不一定是真实的，但即使是不真实，也不影响实用性。

Characteristics of matching error of rock-soil pressure transducer

Introduction of the concept of matching-error of rock-soil pressure transducer is presented.The characteristics and their relevance of the stability,equivalence ,authenticity and practicality of matching-error are discussed.From research results some conclusions can be drawn as follows:the stability of matching-error is the key characteristics;the flatness and rigidity is a prerequisite to the design of transducer;the equivalent-matching-error may not be authentic,but it doesn’t affect the practicality of matching-error.