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Miniaturized integration induction type on-line monitoring sensor for slide oil grains

A monitoring sensor, inductive technology, applied in the direction of instruments, analytical materials, etc., can solve the problem of sensor sensitivity not meeting the requirements, and achieve the effect of reducing the size and improving the response sensitivity

Inactive Publication Date: 2014-03-26
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, whether the abrasive particles of 10 μm or above in the oil can be quickly and accurately monitored is very important for the monitoring of the wear state of the friction pair. Obviously, the sensitivity of the existing sensors is not up to the requirement

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  • Miniaturized integration induction type on-line monitoring sensor for slide oil grains
  • Miniaturized integration induction type on-line monitoring sensor for slide oil grains
  • Miniaturized integration induction type on-line monitoring sensor for slide oil grains

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be pointed out that for those of ordinary skill in the art, a number of modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0034] Such as figure 1 As shown, this embodiment provides a miniaturized and integrated induction type lubricant oil wear particle online monitoring sensor, which is composed of three planar coils stacked, in which: an induction coil 4 is located in the middle; two excitation coils 2 and 6 are symmetrical The two sides are arranged separately, and the ends of the inner ring are connected by through-hole leads 8. The centers of the three coils are aligned and have a common...

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Abstract

The invention provides a miniaturized integration induction type on-line monitoring sensor for slide oil grains, and exciting coils and an induction coil are integrated through micro processing and manufacturing. The sensor consists of three planar coils in a stacking manner, wherein one induction coil is located in the middle, and two exciting coils are symmetrically arranged on two sides and connected at inner-circle ends through a through-hole lead. Besides, the three coils are centrally aligned and share a common hollow round hole to allow a pipeline for circulating the slide oil to penetrate. With the adoption of the design, the planar coils are integrated, so that the effects of highly-dense configuration and accurate symmetry of the exciting coils are achieved, and the improvement of response sensitivity of the sensor is facilitated.

Description

Technical field [0001] The invention relates to an on-line monitoring sensor for lubricating oil abrasive particles, in particular to an inductive lubricating oil abrasive particle online monitoring sensor integrating an excitation coil and an induction coil. Background technique [0002] Engine bearings are prone to wear under high-speed, high-temperature, and high-load operating conditions. Metal particles produced by wear may cause secondary damage to other parts of the engine, which is the main reason for engine shutdown. Therefore, early detection of bearing failure can effectively avoid engine failures, especially the monitoring of the health of aero engines is an important guarantee for flight safety. [0003] The particles produced by wear are an important information carrier about the wear status, and monitoring them can understand the wear status of the bearing during operation. The main methods for monitoring wear particles at home and abroad are: spectroscopy, ferrogra...

Claims

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Application Information

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IPC IPC(8): G01N15/00
Inventor 丁桂甫王志娟赵军红王艳
Owner SHANGHAI JIAO TONG UNIV
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