Pressure detection system and method for membrane pump

Abstract

The invention belongs to the diaphragm pump detection field and in particular relates to a diaphragm pump pressure detection system and a detection method thereof. The detection system comprises a power supply source, a voltage-regulating filter circuit, a voltage change part, a signal collection part, an isolation amplifying part, a central processor, a signal isolating part and a signal output judging part. An output end of the power supply source is connected with an input end of the voltage-regulating filter circuit. One path of the output end of the voltage-regulating filter circuit is connected with the input end of the voltage change part, and the other path is connected with the central processor and the input end of the signal isolating part. One port of the central processor is connected with a port of the signal collection part through the isolation amplifying part, and the other port of the central processor is connected with the port of the signal output judging part through the signal isolating part. The detection method comprises the steps as follows: 1) a signal is input; 2) the input signal is filtered; 3) a reference point is set, and filtered value and referencepoint value are compared and judged; and 4) an analysis result is output.

Description

technical field [0001] The invention belongs to the field of diaphragm pump detection, in particular to a diaphragm pump pressure detection system and a detection method thereof. Background technique [0002] At present, the pressure detection instruments with electric contacts used on diaphragm pumps are all imported high-quality instruments, but in the actual application process, damage to electric contacts often occurs, resulting in frequent replacement of instruments, resulting in loss of cost, and the cost of diaphragm pump products. Quality has taken a toll. Contents of the invention [0003] The invention aims to overcome the disadvantages of the prior art and provide a diaphragm pump pressure detection system with accurate detection results, low cost, low action frequency of output contacts and long service life. The present invention also provides a detection method matched with the above system. [0004] To achieve the above object, the present invention is ach...

AI Technical Summary

Problems solved by technology

[0002] At present, the pressure detection instruments with electric contacts used on diaphragm pumps are all imported high-quality instruments, but in the actual application process, the phenomenon of damage to electric contacts often occurs, resulting in frequent replacement of instruments, resulting in loss of cost, and the cost of diaphragm pump products. Quality has had a bad effect

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