Full-digital MEMS three-component geophone

Abstract

The invention discloses a full-digital MEMS three-component geophone. The full-digital MEMS three-component geophone comprises a sealed waterproof shell, a control unit, a three-component wave detector, three signal conditioning circuits and three A / D converters, wherein the control unit is arranged in the sealed waterproof shell, the three-component wave detector is connected with the control unit and composed of three uniaxial MEMS sensors in an orthogonal mode, the three signal conditioning circuits are connected with the three uniaxial MEMS sensors in a one-to-one mode, and the three A / D converters are connected with the three signal conditioning circuits in a one-to-one mode through a multi-way simulation selector, and the three A / D converters are connected with the control unit. In addition, an inclination detection module and an inertia sensor are further connected to the control unit. By the adoption of the full-digital MEMS three-component geophone, the power supply internal management problems that in the prior art, a wave detector cannot consider posture method information and the multipurpose adaptability to the ground, logging and the like at the same time, cannot obtain internal temperature and humidity parameters in real time and is inefficient and high in power consumption are solved, and high practical value and research significance are achieved.

Description

Technical field [0001] The invention relates to a geophone, in particular to a full digital MEMS three-component geophone. Background technique [0002] In the field of petroleum exploration, geophones are the key equipment for seismic data acquisition, and their performance directly affects the quality of seismic exploration data. With the development of seismic exploration technology, the requirements for resolution and accuracy of seismic exploration are getting higher and higher. Especially the high-resolution exploration developed in recent years requires geophones with large dynamic range, low distortion and strong anti-interference ability. The current situation that the ideal original signal cannot be obtained with traditional geophones has directly affected the quality of seismic data acquisition, while MEMS (Micro Electromechanical System) accelerometers can obtain large dynamic range and high frequency bandwidth. High-quality data can be processed by computer to obtai...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an all-digital MEMS three-component geophone, which solves the problem that the geophone in the prior art cannot take into account attitude method information, ground and well logging and other multi-purpose adaptability, real-time acquisition of internal temperature and humidity control parameters, and high efficiency and low geophone. Problems with internal management of detector power supplies for power consumption

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