光纤位移传感器在喷油器针阀升程测量中的应用

Application of optic fiber sensor to measuring the needle displacement of oil injecter

传统的柴油机喷油器针阀升程测量方式多为接触式.文中提出运用光纤位移传感器进行喷油器针阀升程的测量,重点介绍了光纤位移传感器的原理、测量系统的组成、检测电路的特点等.实践表明,光纤位移传感器在喷油器针阀升程测量中的运用,实现了非接触测量,测量精度大大提高.

Traditionally, the way to measure the needle displacement of oil injector is of contact pattern. This paper introduces a method of using the optic fiber sensor for the needle displacement measurement. The emphases are put on the principle of the optic fiber displacement sensor, the constitution of the measurement system, the characteristics of the measuring circuit, etc. It is shown in practice that the nontcontact measurement is realized, and the precision is improved by using an optic fiber sensor for measuring the needle displacement of oil injector.