Inductive Level Measurement Sensor with Magnetic Fluid
Magnetic fluid is usually used as a variably inductive core in inclination measurement sensor because it is provided with both liquidity and magnetism. This paper presents an inductive sensor based on magnetic fluid, detecting level and small inclination angles against horizontal plane. The working principle is introduced firstly, and then the theoretical analysis for principle of detection is deduced. Furthermore, the influencing factors are extracted from the principle function and are testified by experiment results. Finally, one kind of structures is designed to set up experiment. The experimental results showed that the sensor provides a signal proportionally with the inclination angle, which fit well with theoretical conclusion. The sensor sensitivity is proportional with magnetic susceptibility, with pumping frequency, and with the peak value of driving current.
sensor magnetic fluid inductive sensitivity
Hairong Cui Decal Li Mingli Sun
School of Mechanical,Electronic and Control Engineering Beijing Jiaotong University Beijing,China
国际会议
长沙
英文
28-30
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）