Development of Capacitive Position Sensing Geophone for Microtremor System

Author:

Ding Wei1

Affiliation:

1. China Earthquake Administration

Abstract

Low frequency performance of geophone is important when using microtremor system to explore deep geological structure. This paper reports on improving low frequency performance of a geophone by measuring the capacity attached on a conventional geophone, and the consistency of geophone can be adjusted. The design, principal, and performance of the capacitive position sensing geophone are presented. A prototype geophone is designed and manufactured in the laboratory.

Publisher

Trans Tech Publications, Ltd.

Reference8 articles.

1. H. Okada: The Microtremor Survey Method, Society of Exploration Geophysicists, Unite States of America (2003).

2. L. Chengwang, D. Tao, D. Wei, W. Hao and W. Wei: Design and test of new microtremor array, Journal of geodesy and geodynamics, vol. 32, no. 1, (2012), pp.145-148.

3. S. Cao, J. Lin and H. Yang: Low-frequency expansion technologies applied in deep seismic exploration geophones, Progress in geophys, vol. 27, no. 5, (2012), p.1904-(1911).

4. C. Collette, S. Janssens, P. Fernandez-Carmona, K. Artoos, M. Guinchard and C. Hauviller: Review: Inertial Sensors for Low‐Frequency Seismic Vibration Measurement, Bulletin of the Seismological Society of America, vol. 102, no. 4, (2012).

5. A. Barzilai, T. VanZandt and T. Kenny: Improving the performance of a geophone through capacitive position sensing and feedback, in Proceeding of 1998 ASME International Mechanical Engineering Congress and Exposition, (1998), pp.15-20.

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