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Phase Modulation Device Using Amorphous Short Wire

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2 Author(s)
Mohri, K. ; Nagoya University ; Bushida, K.

A new phase-modulation device with simple structure and high reliability was constructed using a short amorphous wire. A high-frequency ac current (carrier) and a signal current are simultaneously passed through the wire, which undergoes the large Barkhausen effect when the circumferential flux changes. Highly linear modulation characteristics were obtained up to 0.67¿ using a triangular-wave ac current, passed through tension-annealed wire 30 ¿m in diameter and 5 mm in length. This simple yet reliable phase modulation device is expected to find applications in the field of factory automation communication networks.

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Magnetics in Japan, IEEE Translation Journal on  (Volume:9 ,  Issue: 6 )