数字式传感器较之模拟式有许多突出的优点,因而近年来国外发展很快,国内也有了进展。本文分振荡式、脉宽调制式和一些特殊方式的数字式传感器三类分别介绍了它们的测量原理、结构和性能特点及有关应用等,从而展示了发展的动向。 Compared with the analog digital sensor has many outstanding advantages, so in recent years the rapid development of foreign countries, China has also made progress. This article is divided into three types of oscillators, pulse width modulation and some special digital sensors introduced their measuring principle, structure and performance characteristics and related applications, which shows the development trend.