Sinko Kogyo, Co, Ltd.

Eiichi Wada

Michitomo Okubo

Motohiro Gahara

Eisuke Nishizu

Hiroaki Tsubakishita

A wind velocity sensor provided with a stationary base having a permanent magnet or a Hall element fixed thereon, an elastic plate having the other of the permanent magnet and the Hall element fixed to a portion opposite to the one of the permanent magnet and the Hall element, and an inversion amplifier having the outputs of the Hall element inputted thereto, the inversion amplifier developing a liner output with respect to wind velocity.

Wind velocity sensor

The present invention relates to automatic control devices generally for the purpose, in the terminal equipment of an air-conditioning system which blows conditioned air, flowing thereinto through the duct from the central air conditioner, out into the room, of keeping the rate of flow at a certain fixed level. More specifically, the present invention relates to a new and improved type of automatic control device which is worked in a stabilized condition at as low wind pressure as possible and which is capable of blowing air out always at a certain prefixed rate of flow irrespective of fluctuations of the pressure inside the duct.

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Neyagawa, Japan

Eiichi Wada