消光式新型烟度测量装置  

A New Extinction Type Smoke Intensity Measuring Device

作　　者：孙玉德[1] 解世文[1] 吉学东[1] 刘成科[1] 杨礼河[1] 

机构地区：[1]天津大学天津内燃机研究所

出　　处：《汽车技术》2001年第8期20-22,共3页Automobile Technology

摘　　要：介绍了一种新型消光式烟度测量装置。该装置可由烟度传感器将被测烟度的原始信号送入装在计算机内的一块烟度测量多功能接口板，进行信号处理并通过Ａ／Ｄ转换进入计算机总线读写数据，最后通过Ｗｉｎｄｏｗｓ的界面形式将测量的烟度绘成曲线。介绍了其组成及工作原理，并进行了静态零漂试验、发动机台架试验及对电压变化的稳定性试验。通过计算，其测量精度完全满足要求。The paper introduces a new extinction type smoke intensity measuring device which can transfer the orignal signals of measured smoke intensity to a multi - functioned inteiface board in computer for smoke intensity measurement, process data and send to data bus for reading and writing by A/D converter. Finally the data curves of smoke intensity were plotted by windows interface. The paper intreduces the compositions and working principle of the measuring device. The static zero drift test, engine test in test bed and stability to voltage change test are performed. It is shown by calculation that the measuring accuracy meets fully the requirements.

关 键 词：发动机 消光式烟度测量装置 原理 排烟检测 试验 

分 类 号：U467.48[机械工程—车辆工程]