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On-site full-automatic pressure calibrator

A fully automatic and calibrator technology, which is applied to the measurement of fluid pressure, instruments, machines/engines, etc. It can solve problems such as inability to calibrate, pressure controllers that cannot be carried, and pressure controllers that are large in size and externally connected to gas cylinders. Improve work efficiency, reduce its own weight and volume, and reduce the effect of weight and volume

Active Publication Date: 2013-04-10
BEIJING CONST INSTR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the large size of the pressure controller itself, the use of AC power supply, the large volume of the external gas cylinder, and the limitation of the location of the chemical gas in the gas cylinder, the pressure controller cannot be carried
For a large number of pressure instruments used on site, there is a disadvantage that calibration cannot be performed on site

Method used

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  • On-site full-automatic pressure calibrator
  • On-site full-automatic pressure calibrator

Examples

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Embodiment Construction

[0029] see figure 1 , figure 2 and image 3 The on-site fully automatic pressure calibrator provided by the present invention includes a housing 9, a gas pressure generating unit 1, a pressure control unit 2, a power supply unit 3 and a pressure detection unit 4 respectively assembled in the housing 9, placed in The display screen 91 and keyboard 92 at the uppermost end of the casing 9 and the conveniently used and properly distributed electrical signal output holes 93, power switch 94, RS232 interface 95, etc. Wherein, the gas pressure generating unit 1 is provided with a gas path input port (intake port) 96 connected to the atmosphere, its output port is connected to the pressure control unit 2, and the gas path output port 29 of the pressure control unit 2 is connected to the pressure detection unit 4 ( figure 2 The middle thick line represents the connection of the gas circuit); the pressure control unit 2 is also connected with the gas pressure generation unit 1 and t...

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PUM

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Abstract

The invention discloses an on-site full-automatic pressure calibrator. The on-site full-automatic pressure 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, and a gas pressure control unit, wherein the gas pressure generation unit is a miniature gas pressure pump which is communicated with atmosphere; a pressure output pipeline is communicated with the gas pressure control unit; the pressure output ends of the pressure control unit are communicated in parallel and are used for accommodating a pressure standard machine in the pressure detection unit and a pressure joint of a meter to be detected; the pressure control unit is in signal connection with the pressure standard machine in the pressure detection unit; and the power supply unit is electrically connected with the gas pressure generation unit, the pressure control unit and the pressure standard machine in the pressure detection unit respectively. The on-site full-automatic pressure calibrator does not need external gas cylinders or alternating current (AC) power supplies, can automatically generate gas pressure and accurate standard pressure, 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 device which is easy to carry to the field for calibrating pressure instruments. 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 generate gas pressure by manual pressurization in a closed pressure calibration pipeline, and read the indicated value of the pressure gauge through observation, and adjust the gas pressure by manual pressurization. The role of its adjustment is to provide a certain accurate gas pressure at the pressure output port, and use it as a standard pressure to connect to the calibrated pressure ins...

Claims

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Application Information

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