Six-component seismograph

A six-component, seismometer technology, applied in the direction of seismic signal receivers, etc., can solve the problems of inability to jointly process and expand analysis, low integration and accuracy, position difference, etc., to achieve high precision, small angular velocity error, high degree of accuracy Effect

Pending Publication Date: 2020-12-08
PEKING UNIV
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Problems solved by technology

[0004] At present, when it is necessary to measure the translational and rotational components of seismic waves simultaneously, two independent triaxial accelerometers and triaxial rotational sensors are often used for observation. This method has low integration and accuracy. On the one hand, due to They are two ind

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  • Six-component seismograph
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Embodiment Construction

[0032] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] It should be noted that, unless otherwise specified, technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which this application belongs.

[0034] In addition, the terms "first" and "second", etc. are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations the...

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Abstract

The invention provides a six-component seismograph, which comprises three fiber-optic gyroscopes, three accelerometers and a six-component signal processing module, and is characterized in that the sensitive axes of the three fiber-optic gyroscopes are mutually orthogonal, and the sensitive axes of the three accelerometers are mutually orthogonal; the sensitive axis of each fiber-optic gyroscope is parallel to or coincides with the sensitive axis of one accelerometer one by one; and a six-component signal processing module is used for obtaining detection angular velocities and detection translational accelerations in three orthogonal directions and performing error compensation on the detection angular velocities and the detection translational accelerations. Orthogonal assembly of three identical fiber-optic gyroscopes and a three-axis accelerometer are assembled together, and measurement errors caused by incomplete orthogonality of three sensitive axes are compensated. The seismograph is high in precision, high in stability, small in error and capable of measuring angular velocities (rotation components) and translation accelerations (translation components) in three orthogonal directions, and has important guiding significance in development of strong ground kinematics seismology, earthquake engineering and seismographs.

Description

technical field [0001] The present application relates to the technical field of seismographs, in particular to a six-component seismograph. Background technique [0002] The movement of seismic waves is a multi-dimensional complex movement, in addition to three translation components, it also includes a torsion component around the vertical axis and two swing components around the horizontal axis, that is, three rotation components, the combination of these six components can It can effectively explore the propagation characteristics of seismic waves on the ground and in buildings, and can be widely used in the study of source characteristics, seismic tomography, building monitoring, translational motion correction, etc. [0003] At present, the measurement of seismic waves at home and abroad mainly focuses on the translational components of velocity or acceleration in three directions, and the measurement technology is relatively mature, but the research, measurement and r...

Claims

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Application Information

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IPC IPC(8): G01V1/18
CPCG01V1/18
Inventor 操玉文阳春霞张丁凡何动周桐曾卫益朱兰鑫陈彦钧李正斌蒋云
Owner PEKING UNIV
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