Sintef

Sensonor Asa

Gassecure As

Sigurd Teodor Moe

Dag Thorstein Wang

Alain Ferber

Henrik Rogne

Trond Andreas Hansen

Terje Kvisteroey

Knut Sandven

Asgeir Nord

Niels Peter Ostbo

Paul Skulstad

Ralph Berstein

Norman Goalby

Kai Viggo Munch

To achieve gas detection in a precise and reliable way, but at the same time without consuming too much energy, a gas detection system is provided which generally comprises a pair of two different gas detectors. The first detector (D) is active continuously and sense substantially for an unspecific change in the local gas mixture. As a reaction upon the change, the second detector (D) of the pair is activated. This detector (D) performs the determination of the concentration of a specific gas or several specific gasses. The second detector (D) may be of a type which consumes more power, but will be active for a short period of time before returning to an inactive state where only the first detector (D) is active. The first detector (D) however is of a type using little power.

Detector system and method to detect or determine a specific gas within a gas mixture

A sealed infrared radiation source includes an emitter membrane stimulated by an electrical current conducted through the membrane, which acts like an electrical conductor, wherein the membrane is mounted between first and second housing parts, at least one being transparent in the IR range, each housing part defining a cavity between the membrane and the respective housing part of each side of the membrane. The housing parts are at least partially electrical conductive, and a first of the housing parts is electrically coupled to a first end of the electrical conductor and insulated from the second end of the electrical conductor, the second housing part being electrically coupled to a second end of the electrical conductor and being insulated from the first end of the electrical conductor, thus allowing a current applied from the first housing part to the second housing part to pass through and heat the membrane.

Infrared source

An accelerometer comprises a housing including a mass-supporting frame and a mass supported on the frame by a pair of outer spring member aligned along a first axis. The mass may comprise an outer mass connected to the pair of outer spring members and an inner mass connected to the outer mass by a number of inner spring members, the inner spring members aligned along one or more axes, which form a plane which the axis of the outer spring members also may be aligned. Also provided is means for detecting rotation of the mass and translation of the inner mass.

Accelerometer

Growing community of inventors

Oslo, Norway

Sigurd Teodor Moe