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A Calibration Device Applicable to Electromagnetic Force Applicator of Micro Thrust Measuring System

A technology of measurement system and force applicator, applied in the direction of measuring device, calibration/testing of force/torque/power measuring instrument, instrument, etc. In order to achieve the effect of flexible assembly, strong versatility, and convenient use

Active Publication Date: 2020-03-20
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electromagnetic force between the permanent magnet and the coil cannot be accurately calculated, and it is easily affected by the misalignment and distance between the coil and the permanent magnet. Accurate calibration is required, and an electronic balance method is usually used

Method used

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  • A Calibration Device Applicable to Electromagnetic Force Applicator of Micro Thrust Measuring System
  • A Calibration Device Applicable to Electromagnetic Force Applicator of Micro Thrust Measuring System

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Embodiment Construction

[0016] now attached figure 1 And attached figure 2 , through specific examples, the calibration device of the electromagnetic force applicator of the present invention will be further described in detail.

[0017] See figure 1 , the calibration device suitable for the electromagnetic force applicator of the micro-thrust measurement system includes a bracket (9), a lateral displacement adjustment device (1), a longitudinal displacement adjustment device (2), an inclination adjustment device (3), and a longitudinal distance measurement device (4 ), a non-magnetically conductive fixing frame (5) and a non-magnetically conductive fixing block (6).

[0018] See figure 1 , the non-magnetically conductive fixed block (6) has a groove with the same cross-sectional shape as the permanent magnet (7) and a height of 0.5mm on the upper surface.

[0019] See figure 1 , the permanent magnet (7) of the electromagnetic force applicator is placed in the groove of the non-magnetic conduct...

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Abstract

The invention provides a calibration device applicable to a micro thrust measurement system electromagnetic force application device, which comprises a support, a transverse displacement adjusting device, a longitudinal displacement adjusting device, a slope adjusting device, a longitudinal distance measuring device, a non-magnetic fixing block and a non-magnetic fixing frame, wherein the non-magnetic fixing block is used for fixing a permanent magnet and isolating influences on a balance by a magnetic field, and together with the permanent magnet, the non-magnetic fixing block is placed on the tray of the electronic balance; the transverse displacement adjusting device, the longitudinal displacement adjusting device and the slope adjusting device are arranged together to form an integrated adjusting device; the non-magnetic fixing frame is used for fixing a coil, and the non-magnetic fixing frame is connected with the integrated adjusting device as a whole and is suspended above the permanent magnet via the support; and the longitudinal distance measuring device is used for measuring the relative offset distance between the permanent magnet and the coil. When certain current passes through the coil, the balance indicating value change is read, and thus, the electromagnetic forces of the coil and the permanent magnet in different axis offset distances, different relative offset distances and different relative inclination angles are acquired.

Description

technical field [0001] The invention belongs to the technical field of force measurement, and relates to a calibration device suitable for an electromagnetic force applicator of a micro-thrust measurement system. Background technique [0002] The micro-thrust measurement system is used to measure the thrust of the micro-thrust, which is usually less than 1N. During the development and verification of the measurement system, a force applicator capable of simulating a small thrust is required. The electromagnetic force method has great advantages: ① non-contact; ② amplitude can be adjusted continuously; ③ good linear relationship; ④ suitable for remote control in a vacuum environment, and has become a commonly used thrust simulation method. The electromagnetic force method uses a permanent magnet and a multi-turn coil structure. The coil is placed in the high-density magnetic field generated by the permanent magnet and connected to a direct current. The force generated betwee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L25/00
CPCG01L25/00
Inventor 周伟静金星叶继飞文明李南雷
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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