Radiometer, sighting device for a radiometer and method therefor

A sighting device for a radiometer for visibly marking a measuring surface, the temperature of which is measured by said radiometer, comprising:

• a light source for emitting a visible light beam marking said measuring surface;
• and
• an actuator for controlling a direction of said light beam;
• said actuator comprising a coil;
• a magnet being located in an interior of said coil so that, in response to a current flow through said coil, said coil presses said magnet out of said coil or pulls it into said coil.

A sighting device for a radiometer for visibly marking a measuring surface, a temperature of which is measured by said radiometer, comprising:

• at least three light sources each of which emits a visible light beam;
• and said light sources being arranged such that said light beams generate bright points at an edge of said measuring surface;
• and
• a control circuit for switching said light sources on and off;
• said control circuit being connected to each of said light sources and being constructed such that at most two light sources are switched on simultaneously.

A sighting device for a radiometer for visibly marking a measuring surface, said temperature of which is measured by said radiometer, comprising:

• a light source mounted in a housing;
• an individual receptacle having a hollow space being larger than the outer dimensions of a housing of said light source and receiving said housing of said light source;
• and
• a fixation fixing said housing of said light source in said hollow space;
• said fixation being formed such that an optical axis of said light source extends parallel to a mechanical axis of said individual receptacle.

A sighting device for a radiometer for visibly marking a measuring surface, a temperature of which is measured by said radiometer, comprising:

• a plurality of light sources;
• and
• a plurality of individual receptacles;
• one individual receptacle being provided for fixedly receiving each light source, wherein an optical axis of each light source is aligned parallel to a mechanical axis of said corresponding individual receptacle.

A radiometer, comprising:

• an IR detector;
• a lens being arranged with respect to said IR detector such that the lens focuses IR radiation from a measuring surface to said detector;
• a light source emitting visible light for marking said measuring surface;
• said lens said marking providing a visible indication based upon a reading of said IR detector.

A radiometer, comprising:

• an IR detector;
• a light source emitting visible light for marking a measuring surface;
• and
• a lens being arranged with respect to said IR detector such that it focuses IR radiation from a measuring surface to said detector;
• said lens being inclined versus said optical axis so that the reflected portion of said IR radiation encountering the outer side of said lens is smaller than a reflected portion of the light of said light source encountering said outer side of said lens.

A method for a radiometer of visibly marking a measuring surface, comprising:

• emitting a visible light beam by a light source for marking said measuring surface;
• and
• controlling said direction of said light beam by means of an actuator, wherein said actuator comprises a coil;
• a magnet being located in an interior of said coil so that, in response to a current flow through said coil, said coil presses said magnet out of said coil or pulls it into said coil.

A method for a radiometer of visibly marking a measuring surface, comprising:

• emitting visible light beams by at least three light sources for marking said measuring surface;
• each light source emitting one light beam;
• and
• switching said light sources on and off;
• at most two light sources being switched on simultaneously.

A method for a radiometer of visibly marking a measuring surface, comprising:

• emitting a visible light beam by a light source for marking said measuring surface;
• guiding said light beam at a constant angular velocity;
• and
• changing a direction of said light beam stepwise by a sectorized mirror.

A method for a radiometer for adjusting a light source for visibly marking a measuring surface, comprising

• introducing a housing of a light source into an individual receptacle;
• aligning an optical axis of said light source parallel to a mechanical axis of said individual receptacle;
• and
• fixing said housing of said light source within said individual receptacle.

A method for a radiometer, comprising:

• focusing IR radiation emitted by a measuring surface by means of a lens on an IR detector;
• determining a temperature of said measuring surface on the basis of a signal supplied by said IR detector;
• marking said measuring surface by visible light;
• and
• indicating with said marking at least one of a measured state and a change of temperature based upon said determined temperature.

A method for a radiometer, comprising:

• focusing IR radiation emitted by a measuring surface by means of a lens on an IR detector;
• said lens being inclined versus an optical axis;
• determining a temperature of said measuring surface on the basis of a signal supplied by said IR detector;
• emitting visible light onto an outer surface of said lens so that a reflected portion of said IR radiation encountering an outer side of said lens is smaller than said reflected portion of said visible light of said light source encountering said outer side of said lens;
• and
• marking said measuring surface by said visible light reflected by said outer surface of said lens.