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Movable Instantaneous Impact Pressure Testing Device

[+] Author Affiliations
Hongbiao Han, Dandan Liu

Henan University of Science and Technology, Luoyang, Henan, China

Jishun Li, Yonggang Liu

Henan Key Lab for Machinery Design and Transmission System, Luoyang, Henan, China

Bing Wang

Kunshan Shuangqiao Sensor Measurement Controlling Co., Ltd., Kunshan, Jiangsu, China

Paper No. IMECE2009-12693, pp. 11-14; 4 pages
doi:10.1115/IMECE2009-12693
From:
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 5: Electronics and Photonics
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4378-9 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME

abstract

A movable instantaneous impact pressure test device is designed and achieved, according to the characteristic of instantaneous impact wave such as acutely variation and large range of pressure, adverse conditions on the spot. A piezoresistive transducer of high-frequency an high pressure is selected and used. MEMS technology is adopted to design and manufacture the sensor that is flush packaged. In addition multi-channel analogue amplified circuit and DSP control core circuit are studied. So the multilevel multiple pressure analogue signals can be achieved. The circuit can take charge of high speed sampling, processing and storing of analogue signal too. Software modifying mode, process parameter and data transmission is also developed. The device has the function of scheduling of timing sample, automatic gain of magnification, automatic detection of the beginning of impact pressure, parameterization of working mode and process etc. It is a practical instrument with battery as power supply, the low power consumption of power supply control mode and the solid mental shell for testing explosion shock wave. Pressure test results indicated accurate pressure waves of instantaneous impact can be got with the instrument.

Copyright © 2009 by ASME

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