MAGNETIC BEARING HAVING COAXIAL EDDY-CURRENT DISPLACEMENT SENSOR

• Main Author: AHN, Hyeong Joon
• Format: Patent
• Language: English; French; German
• Published: 03.05.2023
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The present invention relates to a magnetic bearing having a colocated eddy-current displacement sensor, and more specifically, to a magnetic bearing having a colocated eddy-current displacement sensor that reduces a sensor installation space and manufacturing costs and solves a problem of sensor noise. A configuration of the present invention for achieving the above-mentioned object provides a magnetic bearing having a colocated eddy-current displacement sensor, the magnetic bearing including an electromagnet unit including a circular casing having a hollow portion therein, and a plurality of electromagnets disposed along an inner periphery of the casing, an amplifier unit coupled to one side of the electromagnet unit, a coil wiring unit coupled to the other side of the electromagnet unit, and a plurality of sensor units disposed along an inner periphery of the electromagnet unit and each having two opposite ends respectively coupled to the coil wiring unit and the amplifier unit, the plurality of sensor units being provided between the coil wiring unit and the amplifier unit, in which the sensor unit is disposed colocatedly with a suspended body supported by the electromagnet unit and configured to measure a displacement of the suspended body.