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Air damping type positioning device of energy balance suspension system

An energy balance and air damping technology, applied in measuring devices, weighing equipment using electromagnetic balance, weighing, etc., can solve the problem that the energy balance cannot achieve static measurement

Inactive Publication Date: 2013-04-24
NAT INST OF METROLOGY CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the energy balance in the prior art cannot realize static measurement, the present invention provides an air damping positioning device for the suspension system of the energy balance

Method used

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  • Air damping type positioning device of energy balance suspension system
  • Air damping type positioning device of energy balance suspension system
  • Air damping type positioning device of energy balance suspension system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, when the positioning accuracy of the current-carrying coil 2 is between 0.5 μm and 1 μm, the air damper includes two dampers 3 and two damping boxes 4;

[0040] The shape of the damper 3 is a cup shape, two dampers 3 are symmetrically distributed on the bottom of the current-carrying coil 2, and the gap between the outer wall of the damper 3 and the inner wall of the damping box 4 is less than 2mm.

Embodiment 2

[0042] Such as figure 2 As shown, when the positioning accuracy of the current-carrying coil 2 is between 0.5 μm and 1 μm, the air damper includes two dampers 3 and two damping boxes 4;

[0043] The shape of the damper 3 is blade-like, two dampers 3 are symmetrically distributed on the bottom of the current-carrying coil 2, and the gap between the outer wall of the damper 3 and the inner wall of the damping box 4 is less than 2 mm.

Embodiment 3

[0045] Such as image 3 As shown, the positioning accuracy of the current-carrying coil 2 is 0.1 μm to 0.5 μm, and the air damper includes three dampers 3 and three damping boxes 4;

[0046] The shape of the damper 3 is a cup shape; three dampers 3 are evenly distributed on the bottom of the current-carrying coil 2 along the circumferential direction, and the gap between the outer wall of the damper 3 and the inner wall of the damping box 4 is less than 1 mm.

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Abstract

The invention provides an air damping type positioning device of an energy balance suspension system. The air damping type positioning device of the energy balance suspension system comprises at least two damping elements. One damping element is evenly distributed on the bottom of a current carrying coil (2) of an energy balance (1). Each damping element comprises a damper (3) and a damping box (4). The damper (3) is movable arranged in the damping box (4). The top of the damper (3) is connected with the bottom of the current carrying coil (2) in a hardwired mode through a connecting rod (8). The air damping type positioning device of the energy balance suspension system achieves the goal of measuring quality of weights from 100g-1000g, errors caused by simple pendulum, conical pendulum and rotational motion around a center shaft generated in the working process of the energy balance can be effectively reduced, and quasi-static measurement of the energy balance can be achieved.

Description

technical field [0001] The invention relates to a positioning device of a precision measuring device, in particular to an air damping type positioning device of an energy balance suspension system. Background technique [0002] The work of establishing a quantum quality benchmark has been discussed in the world for many years, and the "power balance scheme" that has achieved great results is currently. The basic idea of ​​the "power balance scheme" is to hang the current-carrying coil through the current on the balance, and at the same time, place the current-carrying coil in the magnetic field. The Lorentz force on the current-carrying coil is equal to the gravity on the weight when the balance is balanced, so that the value of the weight can be derived from the electromagnetic quantity. Its core is to connect the electrical power with the mechanical power through the balance, and derive the quality reference through a series of transformations. [0003] In recent years, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G21/00G01G7/02
Inventor 鲁云峰贺青张钟华李正坤赵建亭韩冰胡鹏程杨宏兴
Owner NAT INST OF METROLOGY CHINA
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