Abstract:
An apparatus for measuring the temperature of an object. The apparatus includes a device for establishing a standing wave pattern or radiation emanating from the object and a coupling device for coupling the radiation to a detector, such as a measuring radiometer.
Abstract:
A radiation detector for axillary temperature measurement comprises a wand having an axially directed radiation sensor at one end and an offset handle at the opposite end. The radiation sensor is mounted within a heat sink and retained by an elastomer in compression. The radiation sensor views a target surface through an emissivity compensating cup and a plastic film. A variable reference is applied to a radiation sensor and amplifier circuit in order to maintain full converter resolution over design ranges of target and sensor temperature with the sensor temperature either above or below target temperature.
Abstract:
Temperature states of a clinical thermometer body and an environment are estimated by temperatures measured by a first temperature sensor integrally formed together with an infrared sensor arranged to the distal end of a probe and a second temperature sensor arranged on the bottom side of a probe holder, and processes suitable for the respective temperature states are performed. An estimation error or the reliability of an estimation value is calculated by the temperatures to notify a user of the estimation error or the reliability by an LCD or the like.
Abstract:
An infrared detector employing infrared element control circuit wherein the effect of external light on the sensitivity of the infrared element itself is reduced by approximately 80% by a simple, but elegant, economical use of a biased feedback loop.
Abstract:
A signal is sensed from a bolometer element in an uncooled and thermally nonstabilized focal plane array with a Wheatstone bridge over any temperature range across which there is thermal variation which in practice is any range of more than 1null C. and then corrected for spatial nonuniformity. Temperature compensation parameters are provided from a calibration database as a function of ambient temperature by using a flash random access memory. An array of gain and offset values are provided in the memory for each pixel in the focal plane array for each potential operating temperature over the entire temperature range. The temperature compensation uses analog processing and a reference temperature measurement from the focal plane array as an index marker to directly access an appropriate bank of the flash memory that contains the appropriate gain and offset settings that can either be read directly into the focal plane array via its read-out integrated circuit or using analog circuits.
Abstract:
A supporting beam line for supporting, afloat in a cavity on a semiconductor substrate, an infrared detection pixel comprising an infrared absorption portion for absorbing an incident infrared ray and converting it into heat and a thermoelectric conversion portion for converting a temperature change caused by the heat generated in the infrared absorption portion into an electric signal is formed by a damascene metal on the same layer as the gate of a damascene metal gate MOS transistor to be used in a peripheral circuit. The supporting beam line comprises a conductor line with U-shaped cross section inside which a metal is filled.
Abstract:
In an image processing device which carries out processing for detecting and correcting defective portions of an image, it is possible to pre-emptively prevent the defective portion detecting and correcting processing from causing a deterioration in image quality or an excessive processing requiring time requirement. In cases in which a film type of a photographic film on which the image is recorded is a film type known to have a characteristic that an IR image is also formed at a time of image exposure and recording, and in cases in which a density distribution width of IR data is a predetermined value or more, defect detection-correction processing is cancelled. Further, in cases in which a non-image region is included in the image, either defect detection-correction is carried out only on regions other than the non-image region, or defective portion detection-correction is cancelled.
Abstract:
An image processing apparatus for processing visible image information and invisible image information obtained from visible light and invisible light directed onto an original and from the original onto an image pick-up element via a focusing optical system. The image processing apparatus includes an infrared light source, a visible light source, a focus correction unit that corrects the focus of the images when the images are formed on the image pick-up element and acquired, and a signal processor that corrects a partial magnification difference between the visible image and the infrared image.
Abstract:
Methods and apparatus for non-contact thermal measurement which are capable of providing sub micron surface thermal characterization of samples, such as active semiconductor devices. The method obtains thermal image information by reflecting a light from a surface of a device in synchronous with the modulation of the thermal excitation and then acquiring and processing an AC-coupled thermoreflective image. The method may be utilized for making measurements using different positioning techniques, such as point measurements, surface scanning, two-dimensional imaging, and combinations thereof. A superresolution method is also described for increasing the resultant image resolution, based on multiple images with fractional pixel offsets, without the need to increase the resolution of the image detectors being utilized. The thermoreflective method provides a spatial resolution better than current infrared cameras, operates within a wide temperature range, and is capable of a thermal resolution on the order of 10 mKnull.
Abstract:
A microwave thermography apparatus to measure temperatures within a dielectric body comprises a partial ellipsoidal cavity with an electrical conductive surface wherein the body can be located at one focus of the cavity. A microwave antenna located at a second focus of the cavity is connected to a radiometer. That radiometer amplifies and filters signals from the antenna before they are applied to a detector with the temperature of the body being determined from the voltage amplitude of the detected signals.