Sensor for monitoring metal abrasive particles in oil liquid on line and application method for sensor

• Main Authors: ZHAO LONGYANG, ZHANG YINGHONG, PENG SENGUANG, HAN JINDONG, WANG YANXUE, FANG GUIMING, WU MING, LUO YI, JIANG ZHANSI, GAO PENG, GAO CHENG, CHEN HUCHENG, GAO BO
• Format: Patent
• Language: Chinese; English
• Published: 18.09.2013
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

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 an