Sensor for monitoring metal abrasive particles in oil liquid on line and application method for sensor
A technology of metal abrasive particles and sensors, which is applied in the direction of instruments and analytical materials, can solve the problems of high cost measurement sample points, etc., and achieve the effect of accurate and reliable monitoring results, high measurement accuracy and reasonable structure
Inactive Publication Date: 2015-06-03
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology
Oil online monitoring has overcome the shortcomings of traditional laboratory offline analysis methods such as high cost, complicated operation, and limited measurement sample points, and has become the main direction for the development of a new generation of oil monitoring technology.
On-line monitoring of oil has many interference factors, and it is necessary to have high monitoring accuracy in order to find problems in time
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[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments.
[0040] See figure 1 . The sensor for online monitoring of oil and metal abrasive particles is a mutual inductance sensor, including an excitation coil and an induction coil. An oil circuit that can pass through the oil is set in the center of the skeleton made of magnetically inert material, and a coaxial excitation coil and a coil are wound on the skeleton. Induction coil, the induction coil is located between the excitation coil and the skeleton, the axial length of the induction coil is 1 / 3 of the axial length of the excitation coil, and the axial midpoint of the induction coil coincides with the excitation coil, that is, in the axial direction, the induction coil The coil is in the middle of the excitation coil.
[0041] See figure 2 . The main steps of using the above sensors to monitor oil metal abrasive particles o...
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The invention discloses a sensor for monitoring metal abrasive particles in oil liquid on line. The sensor is a mutual inductance sensor and comprises an exciting coil and an inducting coil, wherein an oil path through which the oil liquid can pass is arranged in the center of a framework made of a magnetic inert material; the exciting coil and the inducting coil are coaxially wound on the framework; the inducing coil is positioned between the exciting coil and the framework; the axial length of the inducting coil is 1 / 4-1 / 2 of that of the exciting coil; and the axial center points of the inducting coil and the exciting coil are superposed. The sensor realizes zero compensation and adjustment by adopting a parallel measurement structure and is simple in structure, high in sensitivity, high in linearity and high in interference resistance. The sensor applied to on-line monitoring for the metal abrasive particles in the oil liquid is convenient to operate, high in instantaneity, high in measurement precision and accurate and reliable in monitored result and can be widely applied to military and civil fields and used for monitoring the pollution degree and the abrasion to the oil liquid of lubricating systems of mechanical equipment such as various air planes, naval vessels and automobiles and monitoring and diagnosing faults of the lubricating systems of the mechanical equipment to avoid safety accidents.
Description
technical field [0001] The invention relates to mechanical equipment state monitoring, in particular to the oil analysis technology therein, and more specifically to a sensor for on-line monitoring of oil metal abrasive grains and an application method thereof. Background technique [0002] Equipment wear failure is the most common form of failure. More than 70% of mechanical equipment failures are related to wear. The parameters obtained by monitoring and analyzing the oil can well judge the lubrication and wear state of the equipment. It is a new technology for mechanical equipment condition monitoring that has developed rapidly in the past ten years. Especially in the aspects of engines, gear transmissions, bearing systems, hydraulic systems, etc., this technology has achieved remarkable benefits, so it has been highly valued at home and abroad. . At present, in industrially developed countries, oil analysis technology is becoming or has become one of the indispensable m...
Claims
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IPC IPC(8): G01N15/00
Inventor 张应红方贵明王衍学彭森光吴明蒋占四罗奕高鹏陈虎城高成韩晋栋赵龙阳高波
Owner GUILIN UNIV OF ELECTRONIC TECH