LEMA series actuators were developed for attitude control of the 1U CubeSat skCUBE. Actuators are designed for the smallest possible coercivity Hc. Cores of the coils are made from modern amorphous materials with almost zero Hc and linear magnetization curve. Mechanical parameters can be adjusted for the maximal possible length with respect to the frame capacity of the CubeSat (for example as they were custom-made for skCUBE – the first Slovak satellite). The coil maximum control current is 200mA. The transfer curve of the actuator is linear in this range, which gives the actuator maximum energy efficiency.
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Last updated: 2020-04-16