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Active Magnetic Bearing: Tripod Floater v2.0

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Published on Aug 20, 2009

For this "Active Magnetic Bearing setup" I challenged myself to place all electronics and the controller on board of the module. A microprocessor (www.ti.com) runs 3 PID controllers plus a coordinate transformation at 10 kHz. This controller interfaces with an custom built PCB. This PCB contains line-filtering, 3 small but capable PWM amplifiers (www.Pololu.com) and some signal conditioning for the sensors. The only thing this 13 lb module requires is a 12 V power supply cable. In steady state situation, less than 1 A is required to run the module of which only 0.3 A is used by the amplifiers to maintain a positioning accuracy of less than 10 micro-meter.
If you want to know more about this or other experiments, don't hesitate to contact me at Meindert@NorgConsulting.com.

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