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On-site full-automatic pressure and electric signal calibrator

An electrical signal, fully automatic technology, applied in the direction of measuring fluid pressure, instruments, machines/engines, etc., can solve the problems of no pressure calibration and electrical signal calibration integration, etc., to reduce its own weight and volume, reduce weight and volume, improve The effect of precision

Active Publication Date: 2012-01-04
BEIJING CONST INSTR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the existing fully automated pressure calibration technologies, there is no technology that can integrate pressure calibration and electrical signal calibration

Method used

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  • On-site full-automatic pressure and electric signal calibrator
  • On-site full-automatic pressure and electric signal calibrator
  • On-site full-automatic pressure and electric signal calibrator

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Effect test

Embodiment Construction

[0032] See figure 1 , figure 2 with image 3 , The on-site automatic pressure calibrator provided by the present invention includes a housing 9, a gas pressure generating unit 1, a pressure control unit 2, an electric signal detection unit 5, a power supply unit 3, and a pressure The detection unit 4, the display screen 91, the keyboard 92, the electrical signal output holes 93, the power switch 94, the RS232 interface 95, etc. which are conveniently and appropriately distributed, are placed at the uppermost end of the casing 9. Among them, the gas pressure generating unit 1 is provided with a gas path input end (intake end) 96 connected to the atmosphere, and its output end is connected to the pressure control unit 2, and the gas path output end 29 of the pressure control unit 2 is connected to the pressure detection unit 4 ( figure 2 The middle thick line represents the gas circuit connection); the pressure control unit 2 is also connected to the gas pressure generating unit ...

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Abstract

The invention discloses an on-site full-automatic pressure and electric signal calibrator. The on-site full-automatic pressure and electric signal calibrator comprises a shell, a power supply switch, a plurality of interfaces, a display, control components such as a keyboard and the like, a gas pressure generation unit, a power supply unit, a pressure detection unit, a gas pressure control unit and an electric signal detection unit, wherein the gas pressure generation unit is a miniature gas pressure pump which is communicated with atmosphere; the pressure output ends of the pressure control unit are communicated in parallel and are used for accommodating a pressure standard machine and a pressure joint of a meter to be detected; the pressure control unit is connected with the pressure standard machine in the pressure detection unit through signals; the electric signal detection unit is in signal connection with the pressure control unit and the meter to be detected in the pressure detection unit; and a battery can supply power to the power supply unit. The on-site full-automatic pressure and electric signal calibrator does not need external gas cylinders or alternating current (AC) power supplies, can automatically generate gas pressure and accurate standard pressure, can perform double detection and calibration of pressure and electric signals, has light self weight and small volume, is convenient to carry on site, and can automatically calibrate various on-site pressure meters.

Description

Technical field [0001] The invention belongs to the field of measurement and calibration of pressure instruments and meters, and mainly relates to automatic calibration in this field, in particular to an automatic calibration equipment that is easy to carry to the field and calibrates pressure instruments in terms of pressure and output electrical signals. Background technique [0002] The pressure gauges used in industrial production, pressure measurement and other fields must be checked or calibrated on site after a period of use to determine whether the pressure gauge is accurate. [0003] The usual pressure calibration instrument is to manually pressurize the gas pressure in a closed pressure calibration pipeline, and read the value of the pressure gauge through observation, and adjust the gas pressure by manual pressurization. The function of its adjustment is to provide an accurate gas pressure at the pressure output port, use it as a standard pressure, and connect it to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L27/00F04B1/02
Inventor 姜维利
Owner BEIJING CONST INSTR TECH INC
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