Matsushita Electric Industrial Co., Ltd.

Kikuo Kainou

Masayuki Wakamiya

Tetsuji Fukada

Kotaro Suzuki

Liquid level sensor

A vibration/acceleration sensor is provided which includes a basic sensor unit fixed to a casing adapted to be mounted on a body the vibrations of which are to be detected. The sensor unit is surrounded by a resinous material having a low heat transfer coefficient. The sensor unit includes a vibration detecting unit including a piezoelectric bending vibrator, thin plates each formed of, for example, a resinous material having a low heat transfer coefficient, provided respectively on the upper and lower surfaces of the vibration detecting unit, and a signal processing circuit formed on the upper thin plate.

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Hirakata, Japan

Kikuo Kainou