Wear particle on-line monitoring sensor based on penetrating measurement of planar vortex coil

Abstract

The wear particle on-line monitoring sensor based on the penetrating measurement of the planar vortex coil includes a hard flow channel and a circuit board, and the oil inlet flow channel and the oil output flow channel of the hard flow channel are glued to the sensor housing. The internal connection of the body; the circuit board is installed on the liner of the oil inlet channel, the circuit board base is embedded with a coil connected to the oscillation compensation circuit, and the surface of the circuit board base is provided with a sensitivity adjustment knob connected to the amplification filter circuit and connected to the The connecting post connected to the DC voltage stabilizing circuit; the invention is based on the principle of electromagnetic induction, the structure of the planar vortex single coil, and the measurement mode that the oil pipeline passes through and is perpendicular to the plane where the vortex coil is located. The capture of the disturbance signal can sense and output the ferromagnetic metal abrasive particle signal of 40μm and the non-ferromagnetic metal abrasive particle signal of 80μm at least. Compared with the existing sensor technology, the present invention is not easily affected by the continuity of abrasive particles The recognition accuracy has been improved and the response is more sensitive.

Description

technical field [0001] The invention relates to the technical field of state analysis, measurement and control of mechanical equipment, in particular to the wear particle monitoring sensor technology in the online oil monitoring technical field, and in particular to a wear particle on-line monitoring sensor based on the penetrating measurement of a planar vortex coil. Background technique [0002] Equipment operation monitoring has become an essential technical means to analyze and maintain the health status of various types of machinery. Among them, the wear particle analysis for the equipment lubricating oil system is a very effective method: as a direct product of friction pair wear, abrasive particles carry It contains a large amount of valuable wear information, and its size, color, concentration, etc. can be used as an important basis for wear mechanism analysis and wear state monitoring. Literature has shown that wear particle analysis can detect fault evolution earli...

AI Technical Summary

Problems solved by technology

However, even if the number of coil turns is not reduced, when this type of sensor is used for on-site measurement, due to the influence of environmental factors such as vibration, electromagnetic field, etc., the measurement accuracy will often have a large deviation from the product promotion data, which means that this type of sensor High reliability only in identifying large abrasive particles in real environments

[0005] According to the analysis, the existing electromagnetic induction sensor has obvious advantages in basic principle and structure, but there are serious contradictions in its structure and function, so the new electromagnetic induction sensor design scheme needs to be researched and developed urgently, and the new The solution should try to meet the requirements that the sensor output is not easily affected by the continuity of wear particles, the monitoring accuracy is high, and it is not easy to be disturbed by external environmental factors, so as to facilitate more efficient wear particle analysis and equipment status operation monitoring.

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