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Micro-torque sensor calibrator based on magnetic suspension effect

A micro-torque and sensor technology, applied in force/torque/power measuring instrument calibration/testing, instruments, measuring devices, etc., can solve problems such as difficult to meet the calibration requirements of micro-torque sensors, and achieve elimination of adverse effects and good stability , high precision effect

Inactive Publication Date: 2011-01-12
台州市计量技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also interference factors such as frictional resistance torque, which makes it difficult to meet the calibration requirements of micro torque sensors

Method used

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  • Micro-torque sensor calibrator based on magnetic suspension effect
  • Micro-torque sensor calibrator based on magnetic suspension effect
  • Micro-torque sensor calibrator based on magnetic suspension effect

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with drawings and embodiments.

[0011] Such as figure 1 , figure 2 and image 3 As shown, the present invention includes a magnetic base 1, a force arm 2, a bearing frame 3, a height-adjusting support foot 4, a base 5, a guide rail 6, a weight 7, a lead wire 8, a disc-shaped magnet, a micro-bearing 10, and a holding block 11 , guide post 12, these elements of positioning block 13. The micro-torque sensor to be calibrated is placed vertically, fixed on the base 5 by the positioning block 13 and the tight block 11, and the rotating shaft is equipped with the arm 2 of the arc edge; the first guide rail 6 and the second guide rail 6 are fixed on the base 5; The first bearing frame 3 is installed on the first guide rail 6, the first bearing frame 3 can move up and down along the first guide rail 6 and slotted at the end, the first micro bearing 10 is housed in the groove; the first lead wire 8 passes t...

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Abstract

The invention discloses a micro-torque sensor calibrator based on a magnetic suspension effect. A microtorque sensor to be calibrated is fixed on a base by a positioning block and a clasping block; a moment arm with a circular arc side is installed on a rotating shaft; the bottom surface of the base is provided with a height adjusting support pin, and a guide column and a guide rail are installed on the height adjusting support pin; a bearing frame is installed on the guide rail, the edge of the bearing frame is slotted, and a micro-bearing is installed in a groove; a lead penetrates through the groove on the bearing frame and is hung on the micro-bearing, one end is fixed at the circular arc sides at both ends of the moment arm, and a weight is hung on the other end; a magnetic seat is installed on the guide column; and the central position of the moment arm and the central position of the magnetic seat are respectively provided with disk-shaped magnets. The invention can eliminate the bending moment applied to the rotating shaft of the microtorque sensor to be calibrated by moment arm weight during horizontal arrangement, realize pure torque loading, ensure that the torque is a constant value and meanwhile lead the moment arm to be in a suspension state, has the characteristics of simple structure, high precision and high stability and more favorably meets the calibrating requirement of the microtorque sensor.

Description

technical field [0001] The invention relates to a calibration device, in particular to a calibration device for a micro torque sensor. Background technique [0002] The micro-torque sensor is suitable for tiny torque measurement, and has the characteristics of high measurement accuracy, high resolution and small uncertainty. For example, KISTLER (KISTLER) micro-torque sensor has a range of 0-0.2Nm, an accuracy grade of 0.05, and a static weight of 50Nm in my country. The minimum measured torque of the type torque reference machine is 0.5Nm, which is difficult to meet the measurement and calibration requirements of the micro torque sensor. At present, the measurement and calibration of torque sensors mostly adopts torque static calibration. The more mature method is to add weights to the cantilever beam, and the sensors are mostly placed horizontally. The main reason is that the standard weights have high quality accuracy and good stability. 1 The minimum mass of grade weight...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L25/00
Inventor 潘万苗徐君朱颖应献
Owner 台州市计量技术研究院
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