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Measuring device for propagation speed of gravitational field and method of measuring device

A technology of propagation speed and measurement device, which is applied in the direction of measurement device, gravitational field measurement, geophysical measurement, etc., and can solve problems such as measuring gravitational propagation speed

Inactive Publication Date: 2012-08-01
SHANGHAI NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But in the prior art, people have not taken any method on the earth to measure the propagation speed of gravitational force

Method used

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  • Measuring device for propagation speed of gravitational field and method of measuring device
  • Measuring device for propagation speed of gravitational field and method of measuring device
  • Measuring device for propagation speed of gravitational field and method of measuring device

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Embodiment Construction

[0022] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] The principle of the present invention is to enlarge the Cavendish experiment, replace the large-mass ball with a 10,000-ton oil tanker traveling on the sea, enlarge the torsion balance and the small-mass pendulum ball, and add another torsion balance. And keep the two torsion balances a long distance apart. As the oil tanker travels back and forth, the pendulum ball on the torsion balance is subjected to the gravitational force of the oil tanker, causing the torsion balance to swing back and forth. Since the two torsion balances are separated by a certain distance, if the gravitational force propagates at a limited speed, there will be a phase difference between the swings of the two torsion balances. , that is, a time delay, the distance between the two torsion balances divided by this time delay is the gravitational ...

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Abstract

The invention discloses a measuring device for the propagation speed of a gravitational field and a method of the measuring device. The measuring device comprises two enlarged Cavendish torsion balances, a megaton oil tanker, a laser source, a spectrometer, a reflector and an optical screen. A principle of a Cavendish experimental device is utilized, the megaton oil tanker is used as a signal source to reciprocate, the effect of gravitational force of the signal source reaches the two Cavendish torsion balances via the alternating gravitational field at different moments, the phase difference between movement of one Cavendish torsion balance and movement of the other Cavendish torsion balance is measured by laser interferometry, time difference is computed, and finally the propagation speed of the alternating gravitational field can be computed by the aid of the known distance between the two Cavendish torsion balances. Whether the propagation speed of the gravitational force is faster than the light speed or not can be judged by means of measuring the propagation speed of the gravitational force by the aid of the measuring device and the method.

Description

technical field [0001] The present invention relates to the measurement technology of gravitational propagation velocity, more specifically relates to a kind of measurement device and method of gravitational field propagation velocity. Background technique [0002] The Cavendish experiment tells us that objects with mass attract each other, and this attraction is gravity. Newton's theory of universal gravitation believes that the effect of gravity is instantaneous, while Einstein's general theory of relativity believes that the effect of gravity propagates in the form of a gravitational field. This propagation speed is not infinite, but the speed of light. But in the prior art, people have not taken any method on the earth to measure the propagation speed of gravitation. Contents of the invention [0003] Aiming at the defects existing in the prior art, the object of the present invention is to provide a measuring device and method for gravitational field propagation velo...

Claims

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Application Information

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IPC IPC(8): G01V7/10
Inventor 殷业彭涛关吉萍
Owner SHANGHAI NORMAL UNIVERSITY
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