Metal particle flow velocity measuring device and method based on triangular electrode capacitance sensor

Abstract

The invention discloses a metal particle flow velocity measuring device based on a triangular electrode capacitance sensor. The device comprises a triangular electrode differential capacitance sensorfor detection, a signal acquisition circuit and a computer which are electrically connected in sequence. The triangular electrode differential capacitance sensor comprises an insulating pipeline whichis provided with an upstream electrode pair and a downstream electrode pair. Shielding electrodes are arranged above the upstream electrode pair, between the upstream electrode pair and the downstream electrode pair and below the downstream electrode pair respectively. The outside of the insulating pipeline is sleeved with a metal shielding cover. The invention further discloses a metal particleflow velocity measuring method based on a triangular electrode capacitance sensor. The computer calculates the velocity of metal particles by analyzing output signals of the sensor. The sensor devicedisclosed by the invention has the advantages of more uniform sensitive field, simple structure, low cost, quick response, high flexibility and high sensitivity, and improves the measurement accuracyof the flow velocity of the metal particles in the pipeline.

Description

technical field [0001] The invention belongs to the technical field of analysis and measurement control, and relates to a metal particle flow velocity measurement device based on a triangular electrode capacitance sensor, and also relates to a metal particle flow velocity measurement method based on a triangular electrode capacitance sensor. Background technique [0002] The metal particles produced during the cutting process in the machinery manufacturing industry are usually collected and transported by pipeline transportation in the centralized chip removal system. In CNC machine tools and multi-machine automatic production, by detecting the speed of metal particles in the pipeline in real time, the flow state can be understood and the pipeline blockage can be effectively prevented during the transportation process, so as to ensure the normal progress of the automatic processing cycle and realize the unmanned cutting of chips deal with. Capacitive sensors can be used to ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a metal particle flow velocity measurement device based on a triangular electrode capacitance sensor, which solves the problems of uneven distribution of sensitive fields and measurement results that are greatly affected by "soft field effects" in the prior art, and will The measurement object of the capacitance method is extended to the field of metal particle velocity measurement

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