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Bracket falling body device and bracket falling body control device and system

A technology of control device and bracket, which is applied in control/regulation system, position/direction control, measuring device, etc. It can solve the problems that are not conducive to the development of laser interference absolute gravity measuring instrument, the structure of the vibration isolation system is complicated, and the price is expensive. Achieve the effects of eliminating system self-vibration, reducing motor capacity, and reducing signal interference

Inactive Publication Date: 2015-06-24
INST OF GEOPHYSICS CHINA EARTHQUAKE ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The structure of the additional vibration isolation system added by this processing method is complex and expensive, which is not conducive to the development of laser interference absolute gravity measuring instruments with independent intellectual property rights

Method used

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  • Bracket falling body device and bracket falling body control device and system
  • Bracket falling body device and bracket falling body control device and system
  • Bracket falling body device and bracket falling body control device and system

Examples

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Embodiment Construction

[0066] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0067] Such as image 3 shown in figure 2 What is shown in the partial enlarged view of part B of is a schematic structural diagram of a bracket drop device, including a bracket 1, a drop body 2, an elastic element 3 and a counterweight mass 4;

[0068] The falling body 2 is arranged in the bracket 1;

[0069] The lower end of the bracket 1 is connected with the counterweight mass 4 through the elastic element 3;

[0070] After the counterweight mass 4 controls the bracket 1 to be released, it realizes downward movement according to a set rule.

[0071] A positioning ring is arranged inside the bracket 1;

[0072] The falling body 2 is arranged in the positioning ring.

[0073] The elastic element 3 includes a...

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Abstract

The invention relates to a bracket falling body device and a bracket falling body control device and system. The bracket falling body control system comprises a vacuum upper cover, an upper two-way base and a vacuum cylinder, interiors of the vacuum upper cover, the upper two-way base and the vacuum cylinder are hollow, and the bracket falling body control system further comprises a lower two-way base and the bracket falling body control device; the vacuum upper cover, the upper two-way base, the vacuum cylinder and the lower two-way base are fixedly connected in sequence; the hollow interiors of the vacuum upper cover, the upper two-way base and the vacuum cylinder are communicated together to form a vacuum inner cavity; the lower two-way base and the vacuum cylinder are fixedly connected to seal the vacuum inner cavity; the bracket falling body control device is arranged in the vacuum inner cavity formed by the vacuum upper cover, the upper two-way base and the vacuum cylinder. When a falling body falls freely, a driving motor is in a quiescent state, and the system natural vibration introduced by the driving motor is maximally eliminated. Meanwhile, an upper limiting unit and an elastic component installed on a bracket are taken into consideration, so that the falling body free flight height can be controlled effectively.

Description

technical field [0001] The invention relates to a bracket falling device, a bracket falling control device and a system. Background technique [0002] High-precision absolute gravity measurement data are widely used in resource exploration, earth science, navigation and other fields. Especially since the 1960s, with the development of deep space exploration and missile technology, the requirements for the accuracy of absolute gravity measurement have been continuously improved. As a result, countries around the world have increased research and investment in absolute gravimeters. [0003] The classic laser interferometry absolute gravimeter measures the displacement of the falling object relative to the reference prism when it is in free fall (or upward throwing) to solve the gravitational acceleration of the measuring point. Due to the influence of the system natural vibration of the instrument, the reference prism produces nonlinear vibration in the process, which brings ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/00G01V7/02G01V7/14
Inventor 吴琼滕云田张兵张涛
Owner INST OF GEOPHYSICS CHINA EARTHQUAKE ADMINISTRATION
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