Piezoelectric type gravity meter

A gravimeter and piezoelectric technology, applied in the field of piezoelectric gravimeter, can solve the problems of demanding equipment for volume measurement, time measurement, and inability to measure zero-frequency earth gravitational acceleration, and achieve reliable technical means, light weight, high frequency wide range of effects

Active Publication Date: 2015-12-30
谭成忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This piezoelectric gravimeter is a relative gravity measuring instrument, which can overcome the limitations of existing gravimeters such as bulky size, long measurement time, harsh measurement conditi

Method used

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  • Piezoelectric type gravity meter
  • Piezoelectric type gravity meter
  • Piezoelectric type gravity meter

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1:

[0030] Such as figure 1 The piezoelectric gravimeter shown is characterized in that: the piezoelectric gravimeter is composed of two piezoelectric sheets 1, electrode sheets 2, mass block 3, signal generating system 4 and signal receiving and processing system 5. The electrode sheet 2 is pasted on the two parallel surfaces of the piezoelectric sheet 1 by conductive glue. The alternating voltage signal generated by the signal generating system 4 is applied to the electrode sheet 1 through a wire. The single piezoelectric sheet 1, the electrode sheet 2 and the signal generating system 4 are connected together to form a piezoelectric vibration generator. The other piezoelectric sheet 1 and the two electrode sheets 2 pasted on the surface constitute a piezoelectric signal receiver. The mass 3, the piezoelectric signal receiver, and the piezoelectric vibration generator are respectively arranged from top to bottom along the direction of gravity. The alternating...

Example Embodiment

[0031] Example 2:

[0032] Such as figure 2 The piezoelectric gravimeter shown is characterized in that: the piezoelectric gravimeter is composed of two piezoelectric sheets 1, electrode sheets 2, mass block 3, signal generating system 4 and signal receiving and processing system 5. The electrode sheet 2 is pasted on the two parallel surfaces of the piezoelectric sheet 1 by conductive glue. The alternating voltage signal generated by the signal generating system 4 is applied to the electrode sheet 1 through a wire. The single piezoelectric sheet 1, the electrode sheet 2 and the signal generating system 4 are connected together to form a piezoelectric vibration generator. The other piezoelectric sheet 1 and the two electrode sheets 2 pasted on the surface constitute a piezoelectric signal receiver. The mass 3, the piezoelectric vibration generator, and the piezoelectric signal receiver are respectively arranged from top to bottom along the direction of gravity. The alternating...

Example Embodiment

[0033] Example 3:

[0034] Such as image 3 The piezoelectric gravimeter shown is characterized in that: the piezoelectric gravimeter is composed of four piezoelectric sheets 1, electrode sheets 2, mass block 3, signal generating system 4 and signal receiving and processing system 5. The electrode sheet 2 is pasted on the two parallel surfaces of the piezoelectric sheet 1 by conductive glue. The alternating voltage signal generated by the signal generating system 4 is applied to the electrode sheet 1 through a wire. Three piezoelectric plates are connected in parallel with the electrode 2 and the signal generating system 4 to form a piezoelectric vibration generator. The other piezoelectric sheet 1 and the two electrode sheets 2 pasted on the surface constitute a piezoelectric signal receiver. The mass 3, the piezoelectric signal receiver, and the piezoelectric vibration generator are respectively arranged from top to bottom along the direction of gravity. The alternating volt...

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Abstract

A piezoelectric type gravity meter is characterized by being composed of piezoelectric plates (1), electrode plates (2), a mass block (3), a signal generating system (4) and a signal receiving and processing system (5), the electrode plates (2) are attached to the two parallel surfaces of each piezoelectric plate (1) through conductive glue, alternating voltage signals generated by the signal generating system (4) are applied to the electrode plates (2) through a wire, the piezoelectric plates (1), the electrode plates (2) and the signal generating system (4) are connected to form a piezoelectric vibration generator, the other piezoelectric plate (1) and the two electrode plates (2) attached to the surfaces of the piezoelectric plate (1) form a piezoelectric signal receiver, the mass block (3), the piezoelectric signal receiver and the piezoelectric vibration generator are arranged in the gravity direction from top to bottom, and the signal receiving and processing system (5) receives and processes input voltage signals of the signal generating system (4) and output voltage signals generated by the piezoelectric signal receiver.

Description

technical field [0001] The invention relates to a piezoelectric gravimeter, which has a special purpose in measuring the gravitational acceleration and the earth's gravitational field of the earth's surface, high altitude and underwater, and can also be used for inertial navigation, surveying and mapping, aerial survey, geological and geophysical exploration, and earthquake monitoring , Large-scale engineering safety monitoring field. Background technique [0002] Earth's gravitational acceleration g Accurate measurement of , is a long-term research topic in the field of geology and geophysics as well as surveying and mapping. Theoretically, the Earth's gravitational acceleration is related to the interaction between the Earth and the Sun, Moon, and other planets, as well as the Earth's rotation and internal structure. In terms of application, the accurately measured acceleration of the earth's gravity and the distribution and change of the earth's gravity field are also i...

Claims

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Application Information

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IPC IPC(8): G01V7/00
Inventor 谭成忠
Owner 谭成忠
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