Csem Centre Suisse D'electronique Et De Microtechnique Sa&#x2014;recherche Et D&#xe9;veloppement

Sentec Ag

Csem Centre Suisse D'electronique Et De Microtechnique Sa

Mc-monitoring S.a.

Branislav Timotijevic

Ross Stanley

Peter Matthias Schumacher

Rolf Eckert

Dominik Rudmann

Maurizio Tormen

Joseph Lang

Yves Petremand

Yves Pétremand

Christoph Ellenberger-Girard

Simon Caruel

Markus Lützelschwab

Dara Bayat

Laurent Aebi

Markus Lutzelschwab

Gas measurement sensor including: a measurement chamber including an inlet and outlet for a gaseous sample to be measured; an infrared light source producing substantially collimated infrared light and to direct the infrared light into the measurement chamber; a beam splitter situated in the measurement chamber so as to receive the infrared light and to split the infrared light into a reference beam and a measurement beam such that the measurement beam has a longer pathway through the measurement chamber than the reference beam; a reference infrared detector arranged to receive the reference beam; and a measurement infrared detector arranged to receive the measurement beam. The beam splitter is arranged to reflect a first portion of the infrared light by specular reflection so as to form the reference beam, and to reflect a second portion of the infrared light by specular reflection so as to form the measurement beam.

Gas measurement sensor

A sensor () for detection of gas, in particular for detection of CO. The sensor () has a contact face () which is directed towards a measuring site. The sensor () includes at least one radiation source (), a measurement volume () for receiving the gas to be measured, and at least a first detector () for detection of radiation transmitted from the source () to the first detector () through the measurement volume (). The sensor has a path () of the radiation between radiation source () and first detector (). The radiation propagates along the path in a non-imaging way.

Sensor for detection of gas and method for detection of gas

A sensor () for detection of gas, in particular for detection of CO2. The sensor () has a contact face () which can be directed towards a measuring site. The sensor () includes at least one radiation source (), a measurement volume () for receiving the gas to be measured, and at least a first detector () for detection of radiation transmitted from the source () to the first detector () through the measurement volume (). The sensor has a path () of the radiation between radiation source () and first detector (). The radiation propagates along the path in a non-imaging way.

The disclosure concerns an infrared emitter is provided comprising a metalized membrane emitting infrared light in operation. The membrane comprises a two dimensional array of infrared wavelength sized through-holes and to each side a thin metal layer comprising also an array of through-holes. The through-holes are arranged as a two-dimensional periodic array and each of said through-holes have a cross section having a maximum and a minimum dimension of less than any wavelength of the emitted infrared light. The peak wavelength of the emitted infrared light is proportional to the periodicity of the through-holes. At least one of the metal layers is connected to an electrical current source that provides an electrical current that heats at least one of the metal layers so that a narrow bandwidth and highly directive light beam of infrared light is emitted. The membrane is arranged on a membrane support and both are made of a material that resists to temperatures higher than 400&#xb0;.

Infrared emitter

Growing community of inventors

Lausanne, Switzerland

Branislav Timotijevic