CN202562703U

CN202562703U - Liquid pressure meter calibrator

Info

Publication number: CN202562703U
Application number: CN2012201618934U
Authority: CN
Inventors: 张灿利; 肖明; 曹瑞宾; 李东辉
Original assignee: ZHENGZHOU SAIL ELECTRONIC CO Ltd
Current assignee: ZHENGZHOU SAIL ELECTRONIC CO Ltd
Priority date: 2012-04-17
Filing date: 2012-04-17
Publication date: 2012-11-28
Anticipated expiration: 2022-04-17

Abstract

The utility model discloses a liquid pressure meter calibrator which comprises an alternating current (AC)/direct current (DC) power module. A power output terminal of the AC/DC power module is electrically connected with a power input terminal of an industrial computer. A signal input terminal of the industrial computer is respectively electrically connected with signal output terminals of a touch screen and a pressure sensor. One channel of a signal output terminal of the industrial computer is electrically connected with a signal input terminal of a recommend standard (RS) 232 port module, and the other channel of the signal output terminal of the industrial computer is electrically connected with signal input terminals of an oil-injection control circuit module and a pressure generation control module through a single chip microcomputer (SCM) secondary system module. The signal input terminal of the SCM secondary system module is respectively and electrically connected with a limit switch and a signal output terminal of a zero position detection module. The liquid pressure meter calibrator has the advantages that through utilization of computer control technology, the calibration and the detection of the liquid pressure meter are achieved, and operation is convenient without manual pressure addition, and the like. Moreover, accuracy of the calibration and the detection is high.

Description

Fluid pressure table tester

Technical field

The utility model relates to a kind of fluid pressure table tester that the fluid pressure table verification of industries such as electric power, machinery, oil, chemical industry is used.

Background technology

The fluid pressure table is mainly used in electric power; Every profession and trades such as machinery, oil, chemical industry are used for the detection and the control of fluid pressure, in reality, play indication and protective effect, the quality of fluid pressure table; Accuracy directly has influence on various pipelines, the security of liquid pressure container; In process of production, the quality of manometer and accuracy directly have influence on the quality of product and the security of production equipment and production scene.Yet fluid pressure verification aspect mainly adopts forcing pump and normal pressure instrument combine to form at present, in use need pass through manual pressure, reads the reading on the master gauge then.The accuracy of operating comparatively inconvenience and verification is not high.

Summary of the invention

The utility model purpose is to provide a kind of easy to operate and fluid pressure table tester that the verification accuracy is high.

For realizing above-mentioned purpose, the utility model can be taked following technical proposals:

The described fluid pressure table of the utility model tester; Comprise the AC/DC power module; The power output end of said AC/DC power module is electrically connected with the power input of industrial computer; The signal input part of said industrial computer is electrically connected with the signal output part of touch-screen and pressure transducer respectively; The signal output part one tunnel of industrial computer is electrically connected with the signal input part of RS232 interface module; Another road is electrically connected with the signal input part of oiling control circuit module and pressure generation control module respectively through the single-chip microcomputer subsystem module, and the signal input part of said single-chip microcomputer subsystem module is electrically connected with the signal output part of limit switch and zero-bit detection module respectively.

The utility model advantage is to utilize Computer Control Technology to realize the verification and the detection of fluid pressure instrument, and is easy to operate, need not operations such as manual pressure, and the accuracy of verification and detection is high.

Description of drawings

Fig. 1 is the schematic block circuit diagram of the utility model.

Embodiment

As shown in Figure 1; The described fluid pressure table of the utility model tester; Comprise the AC/DC power module; The power output end of said AC/DC power module is electrically connected with the power input of industrial computer; The signal input part of said industrial computer is electrically connected with the signal output part of touch-screen and pressure transducer respectively; The signal output part one tunnel of industrial computer is electrically connected with the signal input part of RS232 interface module, and another road is electrically connected with the signal input part of oiling control circuit module and pressure generation control module respectively through the single-chip microcomputer subsystem module, and the signal input part of said single-chip microcomputer subsystem module is electrically connected with the signal output part of limit switch and zero-bit detection module respectively.

Its principle of work is: industrial computer directly carries out force samples to pressure transducer; The single-chip microcomputer subsystem module is connected with industrial computer; Industrial Computer Control single-chip microcomputer subsystem module control oiling control circuit module and pressure generation control module realize oiling and pressurized control; The single-chip microcomputer subsystem module confirms through reading the optoelectronic switch state whether compression system is in zero-bit; The single-chip microcomputer subsystem module reaches the purpose of protection equipment through reading the state of limit switch; Touch-screen can be controlled and operate, also can external QWERTY keyboard and mouse operate.

Claims

1. fluid pressure table tester; Comprise the AC/DC power module; It is characterized in that: the power output end of said AC/DC power module is electrically connected with the power input of industrial computer; The signal input part of said industrial computer is electrically connected with the signal output part of touch-screen and pressure transducer respectively; The signal output part one tunnel of industrial computer is electrically connected with the signal input part of RS232 interface module; Another road is electrically connected with the signal input part of oiling control circuit module and pressure generation control module respectively through the single-chip microcomputer subsystem module, and the signal input part of said single-chip microcomputer subsystem module is electrically connected with the signal output part of limit switch and zero-bit detection module respectively.