摘要:
Die Erfindung betrifft eine Anordnung zum Messen der Temperatur in einem Heizsystem aus einem auf einer Heizplatte abgestellten und erwärmten Kochtopf mit Kochgut, bei der die Temperatur des im Kochtopf enthaltenen Kochgutes ermittelt wird. Soll der Kochtopf so gestaltet sein, daß er leicht gehandhabt und gereinigt werden kann, ohne einen batteriebetriebenen Sender für die Meßwertsignale zu haben, dann ist nach der Erfindung vorgesehen, daß die Kochtöpfe im Übergangsbereich von dem Topfboden zur Topfwand mit ringförmigen, umlaufenden Abstrahlflächen versehen sind, daß ein Strahlungsfühler mit Fokussiereinrichtung auf die Abstrahlfläche eines auf der Heizplatte abgestellten Kochtopfes ausgerichtet ist und daß derStrahlungsfühler in einem Abstand zu der Abstrahlfläche angeordnet ist, der dem Abstand der Engstelle im Strahlungsmeßfeld des Strahlungsfühlers von der Eintrittsfläche des Strahlungsfühlers entspricht.
摘要:
The present invention concerns an unique laser radiometer capable of accurately measuring the radiation temperature of a radiant surface and independently measuring the surface's emissivity. A narrow-band radiometer is combined with a laser reflectometer to measure concurrently radiance and emissivity of a remote, hot surface. Together, radiance and emissivity yield the true surface temperature of the remote target. A narrow receiver bandwidth is attained by one of two methods; (a) heterodyne detection or (b) optical filtering. A direct measurement of emissivity is used to adjust the value obtained for the thermal radiation signal to substantially enhance the accuracy of the temperature measurement for a given subject surface. The technique provides substantially high detection sensitivity over a very narrow spectral bandwidth.
摘要:
The present invention concerns an unique laser radiometer capable of accurately measuring the radiation temperature of a radiant surface and independently measuring the surface's emissivity. A narrow-band radiometer is combined with a laser reflectometer to measure concurrently radiance and emissivity of a remote, hot surface. Together, radiance and emissivity yield the true surface temperature of the remote target. A narrow receiver bandwidth is attained by one of two methods; (a) heterodyne detection or (b) optical filtering. A direct measurement of emissivity is used to adjust the value obtained for the thermal radiation signal to substantially enhance the accuracy of the temperature measurement for a given subject surface. The technique provides substantially high detection sensitivity over a very narrow spectral bandwidth.
摘要:
A temperature measurement system for a gas turbine engine (10), the gas turbine engine (10) comprising, in axial flow sequence, a compressor section, a combustor section (15) having plural fuel spray nozzles (50), and a turbine section (100). The temperature measurement system comprises one or more optical thermometers (30), each optical thermometer (30) configured to measure the temperature of a component washed by the working gas of the engine (10), the or each component being in the combustor section (15) or the turbine section (100) at a first position along the axis of the engine.
摘要:
Die Erfindung betrifft einen Sondenkopf, mit welchem eine visuelle Beobachtung eines heißgasführenden Systems von Innen möglich ist. Die Erfindung betrifft des Weiteren eine Sondenanordnung mit einem solchen Sondenkopf.
摘要:
Embodiments include a method of detecting obscuration of an optical window in an IR imaging system, the IR imaging system comprising processing circuitry and a plurality of spatially and spectrally distinct optical channels, each optical channel including a set of lenses that focus incident IR light on a respective portion of an optical detector system, the method comprising: with the processing circuitry, analyzing a first image and a second image, received from respective first and second optical channels of the plurality of spatially and spectrally distinct optical channels, to detect obscuration that may degrade operation of the IR imaging system; with the processing circuitry, creating first and second gradient images from the first and second images, respectively; with the processing circuitry, cross-correlating the first and second gradient images; and with the processing circuitry, determining that at least one cross-correlation between the first and second gradient images exceeds a first window obscuration threshold and that the first and second gradient images exceed a second window obscuration threshold and, in response, providing an alert that the optical window is obscured.
摘要:
An example sensor may include an omnidirectional reflector, a calibration source located inside the omnidirectional reflector and configured to generate one or more calibration beams, a first filter configured to filter one or more first beams including any of a first portion of the incoming beams collected and concentrated by the omnidirectional reflector, and a first detector configured to detect the filtered one or more first beams.
摘要:
A passive optical detector, relating to the technical field of optical detection, and comprising a housing, and a lens array (110), a detection unit, and a reflective component (130) which are provided in the housing. The lens array (110) comprises a plurality of optical lenses, and the detection unit comprises a photoelectric sensor (120). The plurality of optical lenses are arranged into a convex arc-shaped structure, and a convex surface of the convex arc-shaped structure protrudes in a direction away from the photoelectric sensor (120); the photoelectric sensor (120) is located on a focal plane of the convex arc-shaped structure. The reflective component (130) is provided on the inner side of the convex surface of the lens array (110), and is close to a first edge region at a first end (111) of the lens array (110). The lens array (110) having the convex arc-shaped structure is used in combination with the photoelectric sensor (120), so that a detection distance and a detection field angle of the passive optical detector can be ensured, and the applicability and the detection effect of the passive optical detector are improved.