Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Toshirou Otobe

Takashi Kawai

Yukio Mizukami

Akira Matsuura

Yasunobu Kobayashi

Yasunori Matsukawa

Takaaki Ogawa

Katsuhiko Omoto

Noriyuki Jitousho

It is aimed to provide a strain detector having a fewer number of mounting parts and high operation efficiency and usability. The strain detector is provided with a cylindrical strain generator to be strained upon receiving a load, a resistor element which is arranged on the outer circumferential surface of the strain generator and whose resistance varies depending on the amount of strain, a signal processing circuit connected with the resistor element and screw portions arranged above and below the strain generator to sandwich the strain generator. The strain generator and the screw portions are integrated.

Strain detector having a column-shaped strain generator

A strain detector includes an insulating substrate, a power electrode, output electrodes and a ground electrode which are disposed over the insulating substrate, a strain-resistance element provided over the insulating substrate and coupled to the power electrode, the output electrodes and the ground electrode, a protective layer over the strain-resistance element, a frame ground electrode. The insulating substrate includes a stainless steel board, a protective coat on the stainless steel board, and an insulating layer on the protective coat. The frame ground electrode is provided over the stainless steel board and electrically coupled to the stainless board.

Strain detector

A strain detector where water does not reach a strain-resistance element and which supplies stable output at all times is provided. In the strain detector, a first protective layer made of glass is disposed to cover an insulating substrate and the strain-resistance element. A second protective layer made of resins or glass for covering the first protective layer, and a thermistor for compensating the resistance of the strain-resistance element are disposed.

Method for manufacturing a strain detector

Strain detector having water-protective layer

Growing community of inventors

Fukui, Japan

Toshirou Otobe