Rotary Sensors

The rotary sensor applies magnetic element and is used for the rotary detection of the motor.

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FR sensor uses semiconductor MR element  (SMR) and permanent magnet. 
 It faces a gear which made of ferromagnetic material. 
 It outputs para-sine wave depending on a turn of a gear.
Strength of the FR sensor is not effected by  magnetic field and it can out put para-sine wave stably even though under such bad condition as cutting oil, dust and vibration.

Rotary Sensor

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Technical Note of Rotary Sensor

回転センサの動作・検出原理を動画を用いて説明しています。

実際のセンサからの出力波形もご確認頂けます。