Automatic weight loading system of piston type gauge

A piston-type pressure gauge and automatic loading technology, which is applied in the direction of piston-type fluid pressure measurement, fluid pressure measurement, and measurement devices, can solve the problems of relying on manual adjustment control difficulty, unstable measurement status, etc., to simplify the measurement work , prolong the service life and improve the accuracy

Inactive Publication Date: 2011-08-17
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an automatic weight loading system for piston pressure gauges, which solves the defects that the current weight loading still requires manual hydraulic loading and often relies on manual adjustment, which makes the control difficult and the measurement state is unstable.

Method used

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  • Automatic weight loading system of piston type gauge
  • Automatic weight loading system of piston type gauge
  • Automatic weight loading system of piston type gauge

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Embodiment Construction

[0024] Below in conjunction with specific embodiment, further illustrate the present invention.

[0025] A program-controlled automatic weight loading system has been successfully developed on the above-mentioned ultra-high pressure piston pressure gauge.

[0026] The whole system converts the vertical displacement of the weight into an angle change through a displacement measuring device including a displacement-angle conversion mechanism, and uses encoder measurement to generate a pulse output corresponding to the position change of the weight. Using MCS51 single-chip microcomputer technology, this output The pulse is converted into the actual displacement of the weight. According to the program requirements, the motor and the solenoid valve are driven to control the lifting of the hydraulic piston so as to control the lifting of the weight so that it reaches the actual required position. RS232 communication technology and reference pressure gauge measurement and control syst...

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Abstract

The invention relates to a piston type gauge, belonging to the technical field of measurement. The automatic weight loading system of the piston type gauge comprises a weight and fluid drive mechanism, a displacement measuring mechanism, a singlechip control device and a computer communication operation system. After the automatic weight loading system of the piston type gauge reforms the existing weight structure, the added displacement measuring device measures the upper and lower displacement of the weight, and displacement amount in practical working condition is compared with a calibrated weight position by the singlechip control technology so as to control the upper and lower displacement of the weight and realize full-automatic control of automatic loading and automatic adjustment;thus, the piston type gauge realizes integral full automation from weight loading to pressure measurement, which simplifies measurement operation, improves accuracy and prolongs the service life of the piston.

Description

technical field [0001] The invention relates to a weight loading system, in particular to an automatic weight loading system for a piston pressure gauge. Background technique [0002] my country's ultra-high pressure national benchmark laboratory now has two self-developed ultra-high pressure reference piston pressure gauges, which are 1500MPa and 2500MPa controllable gap piston pressure gauges, each of which needs to be loaded with 500kg and 1000kg weights. Each weight is about 50kg, and manual loading is very difficult. Therefore, manual hydraulic system is used for loading, and the ultra-high pressure piston gauges in the world basically use this method for loading. The weights used in this method are all equipped with a weight hanging connection mechanism, so that all the weights are hung together in series, and placed in layers on the top plate of the hydraulic piston on the top of the hydraulic piston. Part of the hanging weight is loaded on the piston of the pressure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L19/00G01L7/16
Inventor 潘征宇洪扁张进明
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH
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