Data measurement method and device based on laser interference absolute gravimeter

Abstract

The invention discloses a data measurement method and device based on a laser interference absolute gravimeter. The method comprises the following steps: when a first stage of the current measurementis executed, synchronously executing a third stage of the last measurement, wherein the first stage specifically comprises motor rising and waiting for stable acquisition, and the third stage specifically comprises gravitational acceleration value calculation; correcting and compensating a gravitational acceleration value, and processing the gravitational acceleration value; after the first stageof the current measurement and the third stage of the last measurement are completed, executing a second stage of the current measurement, wherein the second stage specifically comprises acquisition card configuration; descending the motor and acquiring original data; after the second stage of the current measurement is completed and the time compensation processing is carried out, entering the next measurement, and synchronously executing the first stage of the next measurement and the third stage of the current measurement, so that the single measurement process is optimized, the measurementtime of the single measurement is controlled, and the measurement duration of the laser interference absolute gravimeter is shortened.

Description

technical field [0001] The present application relates to the technical field of gravity measurement, and more specifically, to a data measurement method and equipment based on a laser interferometric absolute gravimeter. Background technique [0002] The laser interferometer absolute gravimeter is a classic high-precision absolute gravity measurement instrument, which is widely used in solid geophysics, seismic observation, geodetic and other fields. The laser interferometer absolute gravimeter is a key measurement required to establish a global gravity reference network Instruments, the International Bureau of Weights and Measures will organize simultaneous comparisons of instruments with different principles, different technologies and comparable performance indicators at a fixed time node to obtain measurement results that are closer to the true value, and calibrate the system deviation of each set of reference instruments , used to establish a global absolute gravity re...

AI Technical Summary

Problems solved by technology

[0009] The invention discloses a data measurement method based on a laser interference absolute gravimeter, which is used to solve the technical problem that the measurement time of the laser interference absolute gravimeter in the prior art is too long, and the measurement time of a single measurement cannot be precisely controlled. The methods described include:

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