自动化仪表
自動化儀錶
자동화의표
PROCESS AUTOMATION INSTRUMENTATION
2014年
7期
80-83
,共4页
曹春芳%孟庆涛%杨薇%高华伟%郭佳旭%刘子通
曹春芳%孟慶濤%楊薇%高華偉%郭佳旭%劉子通
조춘방%맹경도%양미%고화위%곽가욱%류자통
增压器%转速测量%C8051F310%测周法%PCA%数字滤波
增壓器%轉速測量%C8051F310%測週法%PCA%數字濾波
증압기%전속측량%C8051F310%측주법%PCA%수자려파
Supercharger%Rotational speed measurement%C8051F310%Period measurement%PCA%Digital filtering
增压器转速是衡量内燃机能否获得预期增压效果，以达到理想输出功率及系统故障诊断的关键技术参数之一。为快速准确测得增压器转速，设计了一款实用型增压器转速表。介绍了系统硬件平台的搭建、转速信号的处理、测速原理及实现方法。重点讨论了PCA捕捉算法、数字滤波和一键多功能识别算法，并对软件流程进行了分析。试验结果表明，该转速表测量精度高，轻巧便携，具有较强的实用性。
增壓器轉速是衡量內燃機能否穫得預期增壓效果，以達到理想輸齣功率及繫統故障診斷的關鍵技術參數之一。為快速準確測得增壓器轉速，設計瞭一款實用型增壓器轉速錶。介紹瞭繫統硬件平檯的搭建、轉速信號的處理、測速原理及實現方法。重點討論瞭PCA捕捉算法、數字濾波和一鍵多功能識彆算法，併對軟件流程進行瞭分析。試驗結果錶明，該轉速錶測量精度高，輕巧便攜，具有較彊的實用性。
증압기전속시형량내연궤능부획득예기증압효과，이체도이상수출공솔급계통고장진단적관건기술삼수지일。위쾌속준학측득증압기전속，설계료일관실용형증압기전속표。개소료계통경건평태적탑건、전속신호적처리、측속원리급실현방법。중점토론료PCA포착산법、수자려파화일건다공능식별산법，병대연건류정진행료분석。시험결과표명，해전속표측량정도고，경교편휴，구유교강적실용성。
The rotational speed of the supercharger is one of the key technical parameters for system fault diagnosis and for evaluating whether the combustion engine can achieve the expected supercharged effect and reach ideal output power. To measure the rotational speed of supercharger rapidly and accurately, the practical tachometer for supercharger is designed. The set up of the systematic hardware platform, the signal processing of rotational speed, the principle of rotational speed measurement and implementing method are introduced. The PCA capture algorithm, digital filtering and one-key multi-function identification algorithm are discussed emphatically, and the software flowchart is analyzed. The experimental results show that this tachometer features high measurement accuracy, lightweight portability;and possesses strong practicality.
