Ngk Spark Plug Company, Limited

Takehiko Saiki

Hideaki Yagi

Keiichi Ichikawa

Yasunori Hida

Masahiro Kamada

Yoshinori Kondo

Medical oxygen concentrator

A gas sensor includes a sensor element formed of a solid electrolyte having an oxygen ion conductivity; a cathode and an anode, each formed of a porous metal material and each formed on the sensor element, to produce a pumping current reflecting a concentration of a detection component in a measurement gas when a predetermined voltage is applied between the cathode and the anode. The detection component contains oxygen. The measurement gas contacts the cathode. The gas sensor also includes a gas diffusion control to vary the oxygen pumping current in accordance with a pressure of the measurement gas by controlling a diffusion of the measurement gas. The measurement gas moves from a measurement atmosphere toward the cathode by way of the gas diffusion control. Thereby, information on the pressure of the measurement gas is obtained based on the oxygen pumping current.

Gas sensor and gas sensor unit

A gas sensor device including a housing provided with an inlet for introducing a gas to be measured, a sensor element capable of detecting oxygen gas or the like contained in the gas and a base element supporting the sensor element within the interior of the housing. The base element is integrally assembled to the housing by means of a seal.

Gas sensor device

Growing community of inventors

Gifu, Japan

Takehiko Saiki