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Pressure film calibrating method and device

A calibration method and film technology, applied in the direction of measuring devices, calibration/testing of force/torque/power measuring instruments, instruments, etc., to achieve the effects of reasonable design, simple structure, and convenient testing

Inactive Publication Date: 2018-09-28
CHANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a pressure film calibration calibration method and device, which solves the defects of the existing calibration method, can obtain a uniform load, and complete the calibration according to the comparison between the measured pressure values ​​of five groups and those read by the load display

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  • Pressure film calibrating method and device

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] refer to figure 1 The structure of the pressure film calibration calibration device adopted in the method of the present invention is that the hydraulic jack 8 is located between the upper fixed plane 3 and the lower fixed plane 10, and the pressure film 7 and the soft film 6 to be calibrated are placed on the upper end of the hydraulic jack 8, and the pressure film 7 Place a special cylinder 5 and a small steel ball 6 on the soft film 6, leave a certain gap between the small steel ball 6 and the upper fixed plane 3, and connect the load sensor display 9, the hydraulic pump 1, the control valve 2 to the hydraulic jack 8 .

[0019] The calibration test device has a simple structure and can test pressure films of various specifications.

[0020] The pressure film and the special cylinder need to be placed at the center of the upper end face of ...

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Abstract

The invention provides a pressure film calibrating method and device. The device includes a load sensor, a hydraulic jack, a soft film, a special cylinder and a small steel ball, the hydraulic jack isplaced on a fixed plane, the calibrated pressure film is placed on the hydraulic jack, the special cylinder is located on the pressure film, and the small steel ball is placed on the upper end face of the special cylinder. The upper fixed plane is in contact with the small steel ball, so that the contact between the cylinder and the jack is stressed uniformly, and a calibration test requirement can be met; the soft film is placed between the pressure film and the special cylinder to prevent the pressure film from being polluted; the hydraulic jack is provided with the load sensor, so that theworking load value can be monitored in real time; multiple tests can be carried out under the same pressure, and test errors can be reduced.

Description

technical field [0001] The present invention relates to a pressure calibration calibration method and device, in particular, to a pressure calibration method and device. Background technique [0002] At present, with the development of the economy, all kinds of equipment are constantly optimized to make them have higher strength on the original basis, and it is necessary to test and analyze their mechanical properties. For the stress condition of two objects in contact with each other and with a small contact area, the conventional test device cannot measure; within the measurement range, the pressure film can directly measure the contact stress within its measurement range without affecting the actual working pressure value. [0003] Calibrating the pressure film by weights is cumbersome to operate, the contact surface is not smooth, and the gravity per unit contact area is small, which cannot meet the calibration requirements. Therefore, a method for calibrating the pressu...

Claims

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Application Information

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IPC IPC(8): G01L25/00
CPCG01L25/00
Inventor 裴峻峰宋传智宋于鹏时专泰
Owner CHANGZHOU UNIV
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