Electromagnetic flowmeter flow test tooling calibration device
A technology of electromagnetic flowmeter and calibration device, which is applied in the direction of testing/calibrating device, measuring device, testing/calibrating volume flow, etc., which can solve the problems of inability to detect whether the electromagnetic flowmeter is good or bad, waste of manpower and material resources, and complicated device, and achieve structural Simple, saving manpower and material resources, and convenient operation
Pending Publication Date: 2019-11-01
HANGZHOU RUNPAQ ENVIRONMENT EQUIP +1
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Problems solved by technology
The calibration device is composed of a high-power pump station, pipelines, and a large liquid storage tank. The device is relatively complicated, and the cost is high, and it is impossible to detect whether the electromagnetic flowmeter is good or bad during calibration, resulting in wasteful calibration of bad flowmeters. Manpower and material resources
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[0021] Such as figure 1 As shown, an electromagnetic flowmeter flow test tooling calibration device includes a calibration platform 1, an electromagnetic flowmeter standard signal generator 2 connected to the calibration platform and a calibration device 3, and the calibration platform 1 is provided with an electromagnetic flowmeter Circuit board fixing device, measurement parameter display screen 4 and electromagnetic flowmeter liquid crystal display screen 5.
[0022] The electromagnetic flowmeter circuit board fixing device includes a bottom plate 6, an electromagnetic flowmeter circuit board fixed mold 7 that is arranged above the bottom plate 6 and can be moved downward and detachable, and a fixed mold for the electromagnetic flowmeter circuit board that is arranged above the electromagnetic flowmeter circuit board. Pressing plate 8 that can move up and down. The bottom plate 6 and the pressure plate 8 are provided with thimbles corresponding to the terminals of the elec...
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The invention relates to an electromagnetic flowmeter flow test tooling calibration device, comprising a calibration platform, an electromagnetic flowmeter standard signal generator connected to the calibration platform, and a calibration device, wherein an electromagnetic flowmeter circuit board emits an excitation signal to the standard signal generator when being energized, and the standard signal generator outputs a corresponding analog flow signal to the circuit board according to the size of the received signal; the circuit board takes the received signal as an input signal, outputs theflow signal to a liquid crystal display screen of the electromagnetic flowmeter for display through amplification processing, and simultaneously outputs the signal to the calibration device through 485 communication; the calibration device compares the received flow signal with the standard flow signal corresponding to the standard signal generator, corrects the amplification circuit parameters ofthe circuit board, and ensures that the flow signal output by the circuit board is consistent with the standard flow signal. The scheme of the invention is simple in structure, can perform flow calibration on the electromagnetic flowmeter without performing measurement in an actual flowing measurement medium, has low cost, and can simultaneously detect the quality of the electromagnetic flowmeter.
Description
technical field [0001] The invention belongs to the technical field of testing and calibration, and in particular relates to a flow testing tool calibration device for an electromagnetic flowmeter. Background technique [0002] At present, the calibration of electromagnetic flowmeters usually adopts the method of real flow calibration, that is, the actual flow of the measurement medium flows through the electromagnetic flowmeter to achieve calibration. The calibration device is composed of a high-power pump station, pipelines, and a large liquid storage tank. The device is relatively complicated, and the cost is high, and it is impossible to detect whether the electromagnetic flowmeter is good or bad during calibration, resulting in wasteful calibration of bad flowmeters. Human and material resources. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electromagnetic flowmeter flow test tool calibration device w...
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IPC IPC(8): G01F25/00
CPCG01F25/10
Inventor 朱好仁刘建潘志达
Owner HANGZHOU RUNPAQ ENVIRONMENT EQUIP