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An inclination angle measuring and correcting system suitable for a gravimeter

A technology for calibrating systems and gravimeters, applied in measuring devices, measuring inclinations, instruments, etc., to solve the problem of not measuring the inclination of gravimeters

Inactive Publication Date: 2016-10-26
北京奥地探测仪器有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When conducting geological surveys, it is required to accurately adjust the position of the gravimeter to the horizontal state, accurately indicate the inclination angle, and the inclination angle resolution is required to reach 1 arc second, but there is no system for measuring the inclination angle of the gravimeter in China.

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  • An inclination angle measuring and correcting system suitable for a gravimeter
  • An inclination angle measuring and correcting system suitable for a gravimeter
  • An inclination angle measuring and correcting system suitable for a gravimeter

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Embodiment Construction

[0023] The present invention will be further explained below in conjunction with specific embodiments and accompanying drawings.

[0024] An inclination measurement and correction system suitable for gravimeters, such as figure 1 As shown, the system includes an excitation source circuit 1, a first uniaxial inclination sensor circuit 2, a second uniaxial inclination sensor circuit 3, a first phase-sensitive detection circuit 4, a second phase-sensitive detection circuit 5, a first signal amplifier Circuit 6, second signal amplifying circuit 7, first low-pass filter circuit 8 and second low-pass filter circuit 9;

[0025] The excitation source circuit 1 produces a first square wave signal a and a second square wave signal a', such as figure 2 As shown, the duty ratio of the square wave is 1:1, the frequency is 244HZ, and the signal amplitude is 0.714V; the first square wave signal a is input to the first uniaxial inclination sensor circuit 2, and the second square wave signal...

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Abstract

The invention relates to an inclination angle measuring and correcting system suitable for a gravimeter. The system comprises an excitation source circuit, a first single-axis inclination angle sensor circuit, a second single-axis inclination angle sensor circuit, a first phase sensitive detection circuit, a second phase sensitive detection circuit, a first signal amplification circuit, a second signal amplification circuit, a first low-pass filtering circuit and a second low-pass filtering circuit. Through adoption of the method, when the angle of the gravimeter is inclined, the inclination angle can be measured accurately in high precision, thus performing angle adjustment on the gravimeter timely.

Description

technical field [0001] The invention belongs to the field of geological survey, and in particular relates to an inclination measuring and correcting system suitable for a gravimeter. Background technique [0002] A gravimeter is an instrument used to measure the acceleration of gravity. As a relative gravimeter, it is used to measure the difference in relative acceleration of gravity between two points. During geological survey, it is required to accurately adjust the position of the gravimeter to the horizontal state, accurately indicate the inclination angle, and the inclination resolution is required to reach 1 arc second, but there is no system for measuring the inclination angle of the gravimeter in China. [0003] In view of this, the present invention is proposed. Contents of the invention [0004] The invention provides a system capable of accurately measuring the inclination angle of a gravimeter and correcting the inclination angle. [0005] In order to solve t...

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Application Information

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IPC IPC(8): G01C9/24G01C9/06
CPCG01C9/06G01C9/24G01C2009/068
Inventor 陶照明秦佩王斌薛振海蔡璟原
Owner 北京奥地探测仪器有限公司