数据采集卡在内燃机性能监测与故障诊断中的应用.pdfVIP

33 21 2007 11 Vol.33 No.21 Computer Engineering November 2007 ·· 2007 A TP273 (502 710025) PCL-818HD VB DLLWindows PCL-818HD Application of Data Acquisition Card in Performance Monitoring and Fault Diagnosis of Internal-combustion Engine YAO Liang, CHENG Shu, ZHANG Zhen-ren, CAI Yan-ping (No.502 Sector, The Second Artillery Engineering College, Xi’an 710025) AbstractAiming at the needs of online performance monitoring and fault diagnosis, data acquisition system for internal-combustion engine is designed. The whole system is composed of a portable computer, a multi-channel data acquisition card——PCL-818HD, signal conditioning circuits and some related sensors. Also, programming method of data acquisition program based on VB and DLL techniques under Windows environment is introduced. The high speed data acquisition for startup signal, oil signal and vibration signal of internal-combustion engine is realized, which provides a basis for the analysis of internal-combustion engine performance condition and fault diagnosis. Key wordsPCL-818HD data acquisition card; data acquisition; fault diagnosis; internal-combustion engine 100KB/s 3 A/D PCL-8 18HD 3 (1) /A/D (2) CN3 35 (3)