Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1998 Issue 11
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- Pages.245-246
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- 1998
Development of an Inductive Proximity Sensor in Active Magnetic Bearing System for Magnetically Suspended Centrifugal Blood Pumps
능동 자기 베어링 방식의 자기 부상 원심성 혈액 펌프를 위한 유도성 근접 센서 개발
Abstract
AMB(Active Magnetic Bearing) systems are popularly used in various areas. In biomedical engineering applications it is a key part of magnetically suspended rotary blood pumps. The special advantage of AMBs is that they enable the rotor to revolve with no physical contact and provide rotary blood pumps with better performances such as low hemolysis level. Fundamentally, AMB systems consist of three parts, proximity sensors for distance detection, microprocessor for control algorithm and power amplifiers for actuating electromagnets. We have developed an inductive type proximity sensor with satisfactory characteristics that can be used in AMB systems. Frequency response was flat at least up to 10 kHz and sensitivity, resolution
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