A Compound Pressure Signal Acquisition System for Multichannel Wrist Pulse Signal Analysis

2014 ◽  
Vol 63 (6) ◽  
pp. 1556-1565 ◽  
Author(s):  
Peng Wang ◽  
Wangmeng Zuo ◽  
David Zhang
Keyword(s):  
Signal Analysis ◽  
Pulse Signal ◽  
Acquisition System ◽  
Signal Acquisition ◽  
Pressure Signal

scholarly journals A 3D Wrist Pulse Signal Acquisition System for Width Information of Pulse Wave

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 11 ◽  
Author(s):  
Chuanglu Chen ◽  
Zhiqiang Li ◽  
Yitao Zhang ◽  
Shaolong Zhang ◽  
Jiena Hou ◽  
...  
Keyword(s):  
Sensor Array ◽  
Pulse Wave ◽  
Pulse Signal ◽  
Micro Electro Mechanical System ◽  
Acquisition System ◽  
Measuring Instruments ◽  
Signal Acquisition ◽  
Mems Sensor ◽  
Signal Collection ◽  
Pulse Waves

During pulse signal collection, width information of pulse waves is essential for the diagnosis of disease. However, currently used measuring instruments can only detect the amplitude while can’t acquire the width information. This paper proposed a novel wrist pulse signal acquisition system, which could realize simultaneous measurements of the width and amplitude of dynamic pulse waves under different static forces. A tailor-packaged micro-electro-mechanical system (MEMS) sensor array was employed to collect pulse signals, a conditioning circuit was designed to process the signals, and a customized algorithm was developed to compute the width. Experiments were carried out to validate the accuracy of the sensor array and system effectiveness. The results showed the system could acquire not only the amplitude of pulse wave but also the width of it. The system provided more information about pulse waves, which could help doctors make the diagnosis.

scholarly journals Human Pulse Signal Acquisition System Based on PVDF Piezoelectric Film

2021 ◽  
Vol 1924 (1) ◽  
pp. 012019
Author(s):  
Bing Zhou ◽  
Xin’an Wang ◽  
Qiuping Li ◽  
Changpei Qiu ◽  
Jianrong He ◽  
...  
Keyword(s):  
Pulse Signal ◽  
Acquisition System ◽  
Signal Acquisition ◽  
Piezoelectric Film

A Wireless Pulse Signal Acquisition System for Status Monitoring of Ship Navigators

2011 ◽  
Vol 301-303 ◽  
pp. 1052-1059
Author(s):  
Ying Zhe Lu ◽  
Wen Lu Yang
Keyword(s):  
Power Consumption ◽  
Pulse Signal ◽  
Wireless Transmission ◽  
Acquisition System ◽  
Low Power Consumption ◽  
Signal Acquisition ◽  
Timing Acquisition ◽  
Safe Navigation ◽  
Status Monitoring ◽  
Spi Interface

A design of wireless pulse signal acquisition system for status monitoring of ship navigators has been presented. The system employs STC12LE5608AD as controller for timing acquisition of the pulse signal. And then the data are written to the register of CC2500 via SPI interface and transmitted. When the receiver takes the data, the MCU reads the data from the receiver register of CC2500. Finally the MCU send the data to computer via UART for display and further processing. Wireless transmission insures that the system can analyze the degree of navigators' fatigue objectively and quantifiably without affecting their operation of the ship. The system serves as a warning for fatigue navigation. This system has advantages of low power consumption and portability. It has the practical value of safe navigation of ships.

Study of the Metal Crack Propagation by Acoustic Emission Testing

2011 ◽  
Vol 105-107 ◽  
pp. 2179-2182
Author(s):  
Wei Min Zhang ◽  
Shu Xuan Liu ◽  
Yong Qiu ◽  
Cheng Feng Chen
Keyword(s):  
Acoustic Emission ◽  
Crack Propagation ◽  
Acquisition System ◽  
Signal Acquisition ◽  
Sensor Signal ◽  
Acoustic Emission Sensor ◽  
Axial Tension ◽  
Emission Testing ◽  
Acoustic Emission Testing ◽  
Signal Operating

Crack propagation is the main reason which leads to the invalidity of the metal components. A set of detecting equipment based on the acoustic emission method was designed, and it was mainly composed of acoustic emission sensor, signal operating circuits and signal acquisition system. Specimens of 16MnR material were manufactured and the static axial tension test of them was carried on. Acoustic emission signals from the specimen were detected by acoustic emission equipment by using piezoelectric ceramic sensor. Signal datum were acquired and operated by the acquisition system, as well as the acquisition program written for it. The final results has demonstrated that acoustic emission equipment designed for the test performed well in acquiring the signals induced by the metal crack propagation.

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