4/6/2025, 3:29:50 PM 星期日
Research on the impact energy detection method based on piezoelectric force sensors
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1.No.8 Institute of Geology and Mineral Resources Exploration of Shandong Province,Rizhao Shandong 276800, China;2.Faculty of Engineering, China University of Geosciences, Wuhan Hubei 430074, China

Clc Number:

P634.5+6;TN98

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    Abstract:

    The impactor is one of the important tools for preventing core blockage and improving exploration drilling efficiency of drilling. The non-destructive and accurate detection of impact energy has been a difficult issue for impactor manufacturers and research institutions. In this study, the impactor impact waveform is successfully converted to the voltage waveform signal by employing the piezoelectric force sensor and the charge amplifier. After that, the signal will be collected and interpreted again by PC through the MP4221 acquisition system and the real-time acquisition and display software based on Visual C++. According to the theorems of momentum and impulse, the specific relationship between impact energy of the impactor and the maximum impact force is built: the impact energy is proportional to the square of the maximum impact force. Besides, the corresponding feasibility is verified by the calibration experiment bench. The experiment shows that the impact force waveform can be accurately detected by using the piezoelectric sensor, and the corresponding impact power waveform can be accurately calculated by the relationship coefficient calibrated by the calibration bench.between impact energy and impact force.

    Reference
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History
  • Received:June 07,2022
  • Revised:June 25,2022
  • Adopted:June 27,2022
  • Online: July 18,2022
  • Published: July 10,2022
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