Seismic acquisition system and sensor based on MEMS sensor with low power consumption

US11472696B1 · kind B1 · utility

Assignee

• Institute of Geology and Geophysics, Chinese Academy of Sciences · CN

Inventors

• Zongwei LI · Beijing, CN
• Jing Liu · Nanhu, CN
• Yongjian Zhou · Shanghai, CN
• Changchun Yang · Beijing, CN
• Kedu Han · Beijing, CN

Key dates

• Filing date: Jun 17, 2022
• Grant date: Oct 18, 2022
• Expiry date: Jun 17, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B81B2207/03
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present disclosure belongs to the field of geological exploration, and particularly relates to a seismic acquisition system and a sensor based on an MEMS sensor with low power consumption, so as to solve the problem that the existing seismic wave acquisition technology cannot balance high accuracy and low power consumption when the MEMS sensor is used. The present disclosure comprises: the MEMS sensor is used for receiving seismic wave signals and outputting MEMS sensor electrical signals; a common-mode voltage adjustment module is used for adjusting the MEMS sensor signals to be within the input range of common-mode voltage of a readout circuit, so as to obtain low voltage MEMS sensor signals. In the present disclosure, high voltage ensures the detection accuracy of the MEMS sensor; and low voltage is supplied to the readout circuit, thereby reducing the power consumption of the overall seismic acquisition system.