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Title:
METHOD AND DEVICE FOR DETECTING SWITCHING VALUE OF PRESSURE SWITCH
Document Type and Number:
WIPO Patent Application WO/2017/166349
Kind Code:
A1
Abstract:
A method and a device for detecting the switching value of a pressure switch. The device comprises: a pressure generator (1) in communication with a pressure switch (8) by means of pressure piping (3), a pressure control element (2), a pressure sensor (4), and a controller (5) provided with a data processing unit. The pressure sensor (4) is installed on the pressure piping (3) and is electrically connected to the controller (5). The pressure control element (2) is electrically connected to the pressure generator (1) to control the pressure generator (1), and is electrically connected to the controller (5). The pressure sensor (4) transfers the pressure change of the pressure piping (3) to the controller (5) in real time, the data processing unit acquires the value of the pressure change and generates a control instruction according to a preset pressure change rule, and the pressure control element (2) controls the pressure generator (1) to change the pressure within the piping. The device and the method are used to complete the detection of the switching value of a pressure switch, fast detection is achieved, the detection accuracy is improved, the repeatability of the detection result is good, the manual operation cost is reduced and the operation is reliable.

Inventors:
ZHAO, Shichun (5th Building, No.3 Fengxiu Middle Road Haidian District, Beijing 4, 100094, CN)
ZHANG, Chunying (5th Building, No.3 Fengxiu Middle Road Haidian District, Beijing 4, 100094, CN)
Application Number:
CN2016/080363
Publication Date:
October 05, 2017
Filing Date:
April 27, 2016
Export Citation:
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Assignee:
BEIJING CONST INSTRUMENTS TECHNOLOGY INC. (5th Building, No.3 Fengxiu Middle Road Haidian District, Beijing 4, 100094, CN)
International Classes:
G01R31/327; H01H35/24
Foreign References:
CN205450209U2016-08-10
CN201364379Y2009-12-16
CN102890238A2013-01-23
CN204374380U2015-06-03
US4854165A1989-08-08
Other References:
ZHANG, TONGXING ET AL.: "Specific Embodiments of Verification Regulation in an APSL Automatic Pressure Test System", CHINA METROLOGY, 31 October 2008 (2008-10-31), pages 109 - 110
Attorney, Agent or Firm:
SHANGCHENG & PARTNERS (18th Floor, Ever Bright World Center Building No. 28 West Ping An Li Avenue, Xicheng District, Beijing 4, 100034, CN)
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