Device and method for measuring flow velocity of metal particles based on triangular electrode capacitive sensor

Abstract

The invention discloses a metal particle flow velocity measuring device based on a triangular electrode capacitive sensor, which comprises a triangular electrode differential capacitive sensor for detection, a signal acquisition circuit and a computer that are electrically connected in sequence, and the triangular electrode differential capacitive sensor includes an insulating pipeline. , the insulating pipe is provided with an upstream electrode pair and a downstream electrode pair, shielding electrodes are provided above the upstream electrode pair, between the upstream electrode pair and the downstream electrode pair, and below the downstream electrode pair, and a metal shield is sleeved on the outside of the insulating pipe. The invention also discloses a method for measuring the flow velocity of the metal particle based on the triangular electrode capacitance sensor, and the velocity of the metal particle is obtained by analyzing and calculating the output signal of the sensor by a computer. The sensor device of the invention has the advantages of more uniform sensitive fields, simple structure, low cost, fast response speed, high flexibility and high sensitivity, and improves the measurement accuracy of the flow velocity of 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

Images