Automatic detection system for pressure transmitter
An automatic detection and transmitter technology, which is used in the measurement of fluid pressure, force/torque/work meter calibration/test, instruments, etc., can solve the problems of slow detection speed and low detection accuracy, and achieve high verification accuracy, The effect of high intelligence and simple detection process
Pending Publication Date: 2021-06-08
STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD ELECTRIC POWER RES INST +1
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[0003] The purpose of the present invention is to solve the existing verification of the measurement accuracy of pressure transmitters, which requires manual verification and has the defects of slow detection speed and low detection accuracy. The present invention provides an automatic detection system for pressure transmitters
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0026] see figure 1 Describe this embodiment, the pressure transmitter automatic detection system described in this embodiment includes a pressure source 1, a standard detection table 2, an image acquisition module 3, a data acquisition module 4 and a report generation module 5;
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The invention provides an automatic detection system for a pressure transmitter and belongs to the field of pressure transmitter detection. The defects of low detection speed and low detection precision due to the fact that manual detection is needed for the detection of the measurement precision of the pressure transmitter in the prior art are overcome. The system comprises a pressure source used for providing gas or liquid pressure for a standard detection meter and a detected pressure transmitter at the same time; a standard detection meter used for generating corresponding standard current according to the received gas or liquid pressure; a measured pressure transmitter used for generating corresponding current to be measured according to the received gas or liquid pressure; a data acquisition module used for subtracting the received standard current from the current to be measured, taking the absolute value of the difference value as an error variable, and sending the error variable to the report generation module; and the report generation module used for calling a corresponding error reference range according to the received precision grade, comparing the error variable with the called error reference range, obtaining a detection result indicating whether the detected pressure transmitter is qualified or not, and generating a detection report. The system is mainly used for detecting the pressure transmitter.
Description
technical field [0001] The invention belongs to the field of pressure transmitter detection. Background technique [0002] Pressure transmitters are common instruments used in electric power, chemical industry and other industries for the measurement and control of industrial process pressure parameters. In order to ensure the accuracy and reliability of monitoring parameters, pressure transmitters need to be regularly calibrated according to relevant regulations. In the past, the verification of pressure transmitters was operated manually. The verification personnel calculated the current standard values corresponding to different percentages of the range according to the range of the transmitter, and compared the current value output by the transmitter with the standard value during the verification process. deviation, and finally issue a report. The whole process is relatively cumbersome, error-prone, and affected by the level of testing personnel, so a device that can...
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Login to View More IPC IPC(8): G01L25/00G01L27/00
CPCG01L25/00G01L27/00
Inventor 富学斌宿海涛盛玉和杨志行司铁明府冬明高宇斌
Owner STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD ELECTRIC POWER RES INST