平形金属磁石を用いたリニアアクチュエータ駆動型ポンプの特性改善

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  • Improvement of the Output Characteristics of a Pump Driven by a Linear Actuator with Flat-Shaped Metal Magnets
  • ヒラガタ キンゾク ジシャク オ モチイタ リニア アクチュエータ クドウガタ ポンプ ノ トクセイ カイゼン

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Previously, authors developed a novel linear actuator with flat-ring-shaped metal magnets and applied it to a pump. Because the actuator can transfer energy with the magnetic field of very low frequency through a non-magnetic wall such as a human skin, the pump has a possibility to be used as an artificial heart. We made a new pump driven by a newly developed actuator with more powerful and larger metal magnets than used before. Also, we proposed a new driving method for the actuator in order to obtain larger power than before. As a result, the pump output power of 0.3W and the actuator output power of 0.77W are obtained on the condition that the water pressure for the pump and the driving frequency for the actuator are 132mmHg and 1.1Hz, respectively. The experimental system worked out for evaluating the output characteristics of the actuator and the pump is also shown in this paper.

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