Design and Implementation of Engine Waveform Tester Based on Virtual Instrument

Abstract

Engine fault diagnosis and detection is inseparable from the analysis and examination of each sensor or actuator, and the waveform display is the most intuitive and convenient way. This system is an engine waveform tester developed based on virtual instrument and the batch estimate fusion theory is used in the process of the single sensor data acquisition and processing. It is proved by practice that this instrument can conveniently and quickly realize the functions such as signal acquisition and control, waveform analysis and processing and result expressing and output, thus providing technical support for comprehensive intelligent engine fault diagnosis technology.

Design of Multi-Point Wireless Pulse Measuring System Base on CC2530/Zigbee Network

“…Thus we use HK-2000B PVDF pulse sensor, which is soft touch of non-invasive pulse sensors, the output voltage range in 0-20 mv. It can meet the design requirements [3].…”

“…The pulse wave signal collect process will inevitably mixed with white noise and power frequency interference, coupled with the human breath movement and body shift cause baseline drift. So how to eliminate or reduce the noise, power frequency and baseline drift interference, is vital to pulse waveform collect [3].…”