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Wear particle online monitoring device adopting adsorption and adjacent capacitance

A technology for monitoring equipment and particles, applied in the field of hydraulic systems, can solve problems such as unsatisfactory sensor sensitivity, and achieve the effects of inhibiting bubble growth, increasing dielectric constant, and ensuring monitoring reliability.

Inactive Publication Date: 2016-08-17
SHAOXING UNIVERSITY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The distance between the excitation plate and the receiving plate of the capacitive sensor is limited by the diameter of the hydraulic pipe. Due to the relatively large diameter of the hydraulic pipe, the sensitivity of the sensor is not ideal.

Method used

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  • Wear particle online monitoring device adopting adsorption and adjacent capacitance
  • Wear particle online monitoring device adopting adsorption and adjacent capacitance
  • Wear particle online monitoring device adopting adsorption and adjacent capacitance

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Embodiment Construction

[0030] Please refer to the attached figure 1 to attach Figure 8 As shown, the present invention is an online monitoring device for wear particles using adsorption and adjacent capacitors, which consists of a temperature control module 1, a magnetization module 2, an adsorption module 5, an adjacent capacitor particle monitoring module 6, a degaussing module 7, and an ECU 10. It consists of several parts. Wherein, the temperature control module 1 , the magnetization module 2 , the adsorption module 5 , the adjacent capacitive particle monitoring module 6 and the degaussing module 7 are connected in sequence.

[0031] One end of the temperature control module 1 is provided with an oil inlet 8 for inputting hydraulic oil into the device, which is composed of a heater, a cooler and a temperature sensor. The main purpose of the temperature control module 1 is to provide an optimum magnetization temperature of about 42° C. for the magnetization device. At the same time, temperat...

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Abstract

The invention relates to an on-line monitoring device for wear particles using adsorption and adjacent capacitors, in which a temperature control module, a magnetization module, an adsorption module, an adjacent capacitor particle monitoring module and a degaussing module are connected in sequence; one end of the temperature control module is provided with Oil inlet; One end of the degaussing module is provided with an oil outlet, which is composed of a residual magnetic sensor and a degausser. The present invention introduces adjacent capacitive sensor technology based on capacitive edge effect to realize non-invasive and unconstrained monitoring of wear particles; through the magnetization module, the wear particles in the oil are magnetized and adsorbed by the adsorption module to improve the output of adjacent capacitive sensors Monitor signal strength; suppress noise and optimize the overall performance of the adjacent capacitive sensor monitoring device through the temperature control module and reasonable design of the plate layer structure of the adjacent capacitive sensor.

Description

【Technical field】 [0001] The invention relates to an online monitoring device for wear particles in hydraulic pipeline oil, in particular to an online monitoring device for wear particles using adsorption and adjacent capacitors, and belongs to the technical field of hydraulic systems. 【Background technique】 [0002] The wear particles in the hydraulic system oil can not only cause abrasive wear of the kinematic pair, but also hinder the relative movement of the kinematic pair, resulting in malfunction of the control components. Statistics at home and abroad show that 70% of hydraulic machinery failures come from particle pollution of oil. Therefore, on-line monitoring of wear particles in oil has become one of the important ways to reduce wear and hydraulic system failures. [0003] Capacitive sensors are used in the pollution monitoring of machine oil because of their convenient fabrication and low cost. Patent Document 1 (Chinese Invention Patent Authorization Announcem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00F15B21/04G01N27/22
CPCF15B19/00F15B21/041G01N27/221
Inventor 张华芳
Owner SHAOXING UNIVERSITY
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