一种新型气体微量泄漏检测平台的研制  

Development of a New Type of Testing Platform for Trace Leakage Detection of Gas

作　　者：张炜[1] 王晓东[2] 孙锐[1] 黄亮[1] 张宏哲[1] 陈辉[1] 

机构地区：[1]长春工业大学机电工程学院,吉林长春130012 [2]长春工业大学工程训练中心,吉林长春130012

出　　处：《机床与液压》2012年第23期100-103,共4页Machine Tool & Hydraulics

基　　金：吉林省科技发展计划项目(20100409);吉林省重大科技攻关项目(10ZDGG002)

摘　　要：为了提高气体微量泄漏检测的准确性、精度及检测速度,设计一个新型的气体微量泄漏检测平台。该检测平台以可编程控制器作为控制单元,用气敏传感器检测微量泄漏气体的泄漏量。试验结果表明:相比传统气体微量泄漏检测法,该检测平台测试的准确性不再受温度变化和测试管路变化的影响,测试精度提高了3个数量级,且检测时间由原来的1 min/件降低到了20 s/件,生产效率提高了近3倍。A new type of testing platform with programable logic controller （PLC） as control unit and gas sensor as gas trace leakage detection unit was developed to improve the accuracy, precision and testing speed of gas trace leakage detection. The experi- mental data show that the accuracy of the designed platform is no longer affected by the changes of temperature and volume of testing pipe, the testing precision is improved 3 orders of magnitude. The testing time is decreased from 1 minute per part to 20 seconds per part, so production efficiency is improved 3 times compared with traditional testing methods.

关 键 词：气敏传感器 气体微量泄漏 检测平台 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]