Abstract:
In order to measure the temperature of a body (3) extensively independently of interference radiation (.theta..sub.U1), a sensor (1) is provided wherein the radiation (.theta..sub.3) of the body (3) is chopped by means of a chopper (5) between the sensor (1) and the body (3). Since extraneous radiation originates predominantly from losses at the sensor (1) as well as from frictional heat of the chopper (5) in case a mechanical chopper (5) is provided, the housing temperature of the sensor (1) is detected for correction purposes on the side of the chopper (5) facing the sensor (1) by means of an additional sensor (13). Around and in the zone of the travel path of the mechanical chopper (5), by means of a third sensor (15), the ambient temperature of the chopper is detected, again for correction purposes.
Abstract:
An apparatus includes a first component having a first surface and a second component having a second surface. The first surface includes sputtered gold, and the second surface includes a stainless steel alloy. The first surface is configured to contact the second surface, and one of the components is configured to move against another of the components. The stainless steel alloy could consist of a UNS 21800/AISI Type S21800 metal. The sputtered gold could include ion sputtered gold, and the sputtered gold could have a thickness of about 1 micron. The first component could include a first blade of an adjustable aperture mechanism, where the adjustable aperture mechanism also includes a second blade. The second component could include a first plate of the adjustable aperture mechanism, where the adjustable aperture mechanism further includes a second plate. The blades can be configured to move within a space between the plates.
Abstract:
Um weitgehend unabhängig von Störeinstrahlungen (ϑ ul ) die Temperatur eines Körpers (3) zu messen, wird ein Sensor (1) vorgesehen, wobei die Strahlung (ϑ3) des Körpers (3) mittels eines Zerhackers (5), zwischen Sensor (1) und Körper (3), zerhackt wird. Da Fremdeinstrahlung vornehmlich von Verlusten am Sensor (1) sowie, beim Vorsehen eines mechanischen Zerhackers (5) von Reibungswärme des Zerhackers (5) herrührt, wird auf der dem Sensor (1) zugewandten Seite des Zerhackers (5) mittels eines weiteren Sensors (13) die Gehäusetemperatur des erstgenannten Sensors (1) zu Korrekturzwecken erfasst. Um und im Bereiche der Bewegungsbahn des mechanischen Zerhackers (5))wird, mittels eines dritten Sensors (15), wiederum zu Korrekturzwecken, die Umgebungstemperatur des Zerhackers erfasst.
Abstract:
Um weitgehend unabhängig von Störeinstrahlungen (ϑ ul ) die Temperatur eines Körpers (3) zu messen, wird ein Sensor (1) vorgesehen, wobei die Strahlung (ϑ3) des Körpers (3) mittels eines Zerhackers (5), zwischen Sensor (1) und Körper (3), zerhackt wird. Da Fremdeinstrahlung vornehmlich von Verlusten am Sensor (1) sowie, beim Vorsehen eines mechanischen Zerhackers (5) von Reibungswärme des Zerhackers (5) herrührt, wird auf der dem Sensor (1) zugewandten Seite des Zerhackers (5) mittels eines weiteren Sensors (13) die Gehäusetemperatur des erstgenannten Sensors (1) zu Korrekturzwecken erfasst. Um und im Bereiche der Bewegungsbahn des mechanischen Zerhackers (5))wird, mittels eines dritten Sensors (15), wiederum zu Korrekturzwecken, die Umgebungstemperatur des Zerhackers erfasst.
Abstract:
A thermal radiation sensor is joined with a shutter that is adapted for reversible interruption of radiation from an object to the sensor. The shutter includes an integral electrically operated heater for maintaining a portion of the shutter at a predetermined temperature as a thermal reference for the sensor. The sensor is alternatively exposed to radiation from the object and the thermal reference portion of the shutter, and provides a first signal representative of the radiation that it receives from the object and a second signal representative of the radiation that it receives from the reference portion. An electronic circuit is connected to the sensor for receiving the first and second signals, for calculating the temperature of the object, and for providing a signal representative of the calculated temperature.
Abstract:
A method and apparatus for measuring a temperature of a body extensively independently of an interference radiation. The apparatus comprising a sensor wherein a radiation of the body is chopped or interrupted by a chopper disposed between the sensor and a body. In order to sense extraneous radiation which originates predominately from losses at the sensor as well as from frictional heat of the chopper, the housing temperature of the sensor is detected for correction purposes on a side of the chopper facing the sensor by an additional sensor. Around and in the zone of the travel path of the chopper, an additional sensor is provided for sensing an ambient temperature of the chopper.
Abstract:
A temperature detecting device detects infrared rays from an object to be measured and determines the temperature of the object based on the detection result. To avoid the influence of contamination adhered to the infrared ray incident surface of an infrared ray detecting unit, a correction coefficient for the detection result of the infrared ray detecting unit is determined before actual temperature detecting starts. For this purpose, the infrared rays fed from the object into the infrared ray detecting unit are interrupted by a shutter device. The infrared ray detecting unit detects the infrared rays fed from the shutter device through the infrared ray incident surface, and it outputs a first detection value corresponding to the shutter temperature. A shutter temperature detecting element directly detects the actual temperature of the shutter device, and it outputs a second detection value corresponding to the actual temperature of the shutter device. The correction coefficient is determined by comparing the second detection value from the shutter temperature detecting element with the first detection value from the infrared ray detecting unit. Subsequently detected temperatures are then corrected by this correction coefficient.
Abstract:
An apparatus (100) includes a first component (102) having a first surface (106) and a second component (104) having a second surface (110). The first surface includes sputtered gold, and the second surface includes a stainless steel alloy. The first surface is configured to contact the second surface, and one of the components is configured to move against another of the components. The stainless steel alloy could consist of a UNS 21800/AISI Type S21800 metal. The sputtered gold could include ion sputtered gold, and the sputtered gold could have a thickness of about 1 micron. The first component could include a first blade (306) of an adjustable aperture mechanism, where the adjustable aperture mechanism also includes a second blade (308). The second component could include a first plate (310) of the adjustable aperture mechanism, where the adjustable aperture mechanism further includes a second plate (312). The blades can be configured to move within a space between the plates.
Abstract:
Infrared rays fed from the object into the detecting unit are interrupted by a solenoid driven shutter device (14). The detecting unit senses the rays fed from the shutter device through the incident surface, and it outputs a detection value corresp. to the shutter temp. A shutter temp. detecting element (16) directly senses the actual temp. of the shutter device, and it outputs a second detection value corresp. to the actual temp. of the shutter device. The correction coefficient is determined by combining the two values from the detecting unit. Subsequently detected temps. are then corrected by this coefficient.