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Loading force value calibrating method suitable for fatigue-testing machine and applied calibrating device

A technology of fatigue testing machine and calibration device, which is applied in the direction of measuring device, calibration/testing of force/torque/power measuring instrument, instrument, etc. It can solve the problems of inability to obtain accurate results and achieve accurate calibration results

Inactive Publication Date: 2012-05-02
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is obviously impossible to get accurate results by directly using this method to calibrate the force sensor 6 of the fatigue testing machine

Method used

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  • Loading force value calibrating method suitable for fatigue-testing machine and applied calibrating device
  • Loading force value calibrating method suitable for fatigue-testing machine and applied calibrating device
  • Loading force value calibrating method suitable for fatigue-testing machine and applied calibrating device

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Embodiment 1

[0036] Embodiment 1, image 3 A calibration device suitable for the loading force value of a fatigue testing machine is given, including a cylinder 1 with a piston 2, a data acquisition system 3, a high-precision force sensor I4, a high-precision force sensor II5, a force sensor 6 and clamps Take fixture 7 of sample 8. High-precision force sensor I4 and high-precision force sensor II5 belong to exactly the same high-precision force sensor. All of the above components can be obtained through commercial purchase. For example, the high-precision force sensor I4 and the high-precision force sensor II5 can choose the precision force sensor (S type) produced by Bengbu Aerospace Sensing Measurement and Control Engineering Co., Ltd.

[0037]Between the piston 2 and the clamp 7, the high-precision force sensor I4, the high-precision force sensor II5 and the force sensor 6 are fixedly installed in sequence, the high-precision force sensor I4 is directly above the high-precision force ...

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Abstract

The invention discloses a loading force value calibrating device suitable for a fatigue-testing machine, and the loading force value calibrating device comprises an air cylinder (1) provided with a piston (2), a data acquisition system (3), a high-precision force sensor I (4), a force sensor (6) and a fixture (7) used for clamping samples (8). The calibrating device also comprises a high-precision force sensor II (5), the high-precision force sensor I (4), the high-precision force sensor II (5) and the force sensor (6) are sequentially fixed between the piston (2) and the fixture (7), and thehigh-precision force sensor I (4) and the high-precision force sensor II (5) are both connected with the data acquisition system (3) through signals. The invention also provides a loading force valuecalibrating method carried out by the calibrating device. In the calibrating method, an acceleration value a does not need to be obtained, and errors brought by inertia force in calibration can be eliminated indirectly so as to achieve the result of accurate calibration.

Description

technical field [0001] The invention relates to a calibration method suitable for the loading force value of a fatigue testing machine and a calibration device used. Background technique [0002] Pneumatic fatigue testing machine is a commonly used fatigue testing machine in the machinery industry. It has the characteristics of simple structure, convenient operation, high efficiency and low energy consumption among various types of fatigue testing machines, so it has a wide range of applications. [0003] The structural principle of the pneumatic fatigue testing machine is as follows: figure 1 As shown, the piston 2 moves back and forth by controlling the air pressure of the cylinder 1, and the clamp 7 moves together with the piston 2, applying cyclic tension and pressure to the sample 8 fixed on the clamp 7, thereby realizing the fatigue test; between the piston 2 and the clamp A force sensor 6 is installed between the 7, and the force sensor 6 is used to detect and displa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/62G01L25/00
Inventor 谢毅
Owner ZHEJIANG GONGSHANG UNIVERSITY
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