A fully automatic calibration circuit, device and method for a pressure transmitter
A technology for calibrating circuits and transmitters, which is applied in the field of instrument tools, can solve problems such as difficulty in achieving maintenance quality, time length depends on maintenance quality, and long maintenance time, so as to optimize maintenance preparation and adjustment strategies, and improve maintenance quality. Quality and uniformity, the effect of saving maintenance time
Active Publication Date: 2020-04-14
GUANGXI FANGCHENGGANG NUCLEAR POWER +1
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Problems solved by technology
[0003] At present, the calibration of on-site transmitters is all manual calibration. The pressure is set manually, the current is measured, and then corrected and adjusted according to the calibration sheet. The length of time for transmitter calibration and the quality of maintenance depend on the person in charge of the work. Working attitude and skills, it is difficult to achieve uniform maintenance quality, and the maintenance time is long
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[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0032] In order to solve the problems existing in the existing manual calibration pressure transmitter, the present invention provides a fully automatic calibration circuit, which can realize the automatic calibration of the pressure transmitter without manual participation Pressing and adjusting the calibration can ensure the accuracy, stability and uniformity of the pressure transmitter, and can also improve the quality of maintenance.
[0033] Specifically, see 1, figure 1 It is a structural schematic diagram of Embodiment 1 of a fully automatic calibration circuit for a pressure transmitter provided by the present invention.
[0034] Such as figure 1 As shown, the fully automatic calibration circuit of the pressur...
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The invention relates to a full-automatic check circuit, device and method for pressure transmitters. The check circuit includes a controller, a pressure unit, and an adjuster connected with a pressure transmitter. The controller is used for starting check according to a start instruction input by a user and generating a pressure control instruction according to check information input by the user. The pressure unit is connected with the pressure transmitter and the controller, and is used for outputting a pressure to press the pressure transmitter according to the pressure control instructionand returning a pressure signal. The pressure transmitter outputs a current signal after receiving the pressure input by the pressure unit. The controller outputs a corresponding pressure adjustmentinstruction according to the pressure signal to make the pressure unit press the pressure transmitter. The controller further receives and processes the current signal and outputs a control signal tomake the adjuster adjust the pressure transmitter. A pressure transmitter can be overhauled in a full-automatic manner. The maintenance process is accelerated. A lot of maintenance time is saved. Thequality of maintenance is improved.
Description
technical field [0001] The present invention relates to the technical field of instruments and tools, and more specifically relates to a fully automatic calibration circuit, device and method for pressure transmitters. Background technique [0002] Pressure transmitters are an indispensable part of the industrial field. They are used to measure parameters such as on-site pressure, flow, and liquid level. The calibration of pressure transmitters is an important maintenance work for transmitters, which determines the quality of transmitters. accuracy and precision. [0003] At present, the calibration of on-site transmitters is all manual calibration. The pressure is set manually, the current is measured, and then corrected and adjusted according to the calibration sheet. The length of time for transmitter calibration and the quality of maintenance depend on the person in charge of the work. Working attitude and skills, it is difficult to achieve uniform maintenance quality, ...
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IPC IPC(8): G01L27/00
CPCG01L27/005
Inventor 蒋永强
Owner GUANGXI FANGCHENGGANG NUCLEAR POWER