Abstract: The invention relates to a thermal radiation source which comprises a housing, an electrically operated radiation element arranged in the housing and an exit window through which radiation emitted by the radiation element is emitted from the housing, and to two methods for measuring the temperature of an exit window of the thermal radiation source and/or the radiant flux through an exit window of radiation emitted by the thermal radiation source.

Abstract: The invention discloses an arrangement for mechanically and electrically contacting a glow wire of a thermal radiation source, comprising a glow wire made of refractory metal having at least one flat connection surface to be contacted, a contact surface on which the glow wire is contacted, and a contacting means which connects the glow wire to the contact surface. The invention also relates to a method for producing the contact according to the invention.

Abstract: A measuring device for sensing different gases and gas concentrations, includes an infrared radiation source, a measurement channel, which has an optical path and a gas interaction path, and radiation detectors arranged along the measurement channel. The optical path has a first band-pass interference filter arranged at a first deflection point and a first radiation detector is arranged after the band-pass interference filter. A method that uses the measuring device, includes: measurement radiation is introduced into the measurement channel containing the gas to be measured, the measurement radiation hits the first band-pass interference filter, wherein only radiation of a wavelength defined by the first band-pass interference filter hits the first radiation detector, radiation reflected at the band-pass interference filter is forwarded along the optical path in the measurement channel to a second radiation detector, and the gas concentrations measured by the radiation detectors are evaluated.

Abstract: The invention relates to a micro-heating conductor for a radiation source, wherein the micro-heating conductor is formed from a meandering heating conductor structure which has meandering protrusions and spans a heating conductor structure plane with a surface normal, wherein adjacent meandering protrusions are formed in the heating conductor structure plane and so as to face away from one another in opposite directions.

Abstract: The invention relates to a micro-heating conductor for a radiation source, wherein the micro-heating conductor is formed from a meandering heating conductor structure which has meandering protrusions and spans a heating conductor structure plane with a surface normal, wherein adjacent meandering protrusions are formed in the heating conductor structure plane and so as to face away from one another in opposite directions.

Abstract: A measuring device for sensing different gases and gas concentrations, includes an infrared radiation source, a measurement channel, which has an optical path and a gas interaction path, and radiation detectors arranged along the measurement channel. The optical path has first band-pass interference filter arranged at a first deflection point and a first radiation detector is arranged after the band-pass interference filter. A method that uses the measuring device, includes: measurement radiation is introduced into measurement channel containing the gas to be measured, the measurement radiation hits the first band-pass interference filter, wherein only radiation of a wavelength defined by the first band-pass interference filter hits the first radiation detector radiation reflected at the band-pass interference filter is forwarded along the optical path in the measurement channel to a second radiation detector, and the gas concentrations measured by the radiation detectors are evaluated.