Title: Integrated five freedom electric eddy sensor
Application Number: 200610165162 Application Date: 2006.12.14
Publication Number: 1987367 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01D5/12;G01D5/16;G01B7/02
Applicant(s) Name: Beijing Univ. of Aeronautics and Astronautics Address:
Inventor(s) Name: Fang Jiancheng;Tian Xihai;Liu Gang;Liu Hu;Zhang Qi
Attorney & Agent: guanling lixin hua
Abstract:
    The current vortex sensor can measure offset deviation signal between actual position and given position of magnetic bearing rotor so as to realize stable control. The sensor is composed of sensor probe, measuring circuit (MC), and shell. Integrated design is adopted for 12 pieces of sensor probe and MC so as to avoid interference brought by extended cables between sensor probes and MC. 4 pieces of radial sensor probe constitute differential type structure (DTS) to detect radial transnational motion of rotor in two orthogonal directions. 8 pieces of axial sensor probe constitute DTS to detect axial transnational motion of rotor, and rotational movement of rotor in two orthogonal directions. Simplifying two sensors configured at two ends in traditional magnetic bearing into one sensor, the invention provides displacement signals in 5 degrees of freedom needed for controlling rotor. The invention is applicable to pose actuator of spacecraft. Features are: reduced size and weight.
Time: 10
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