Abstract:
A tunable superconductor apparatus or associated method. The apparatus comprises a coil, a first superconductor film portion, a second superconductor film portion, and an actuator. The first superconductor film portion is electrically coupled to the coil. The second superconductor film portion is inductively coupled to the first superconductor film portion. Displacement of the second superconductor film portion relative to the first superconductor film portion changes the capacitance between the second superconductor film portion and the first superconductor film portion. The actuator is capable of relatively displacing the second superconductor film portion and the first superconductor film portion to change a resonant frequency of the tunable superconductor apparatus. In one aspect, the actuator includes a Micro-Electromechanical (MEM) component or a mini electric-motor component that have the capability of relatively displacing the second superconductor film portion and the first superconductor film portion. The superconductor apparatus is configured, for example, as a resonator or as a filter in the frequency range of 1 MHz to 10 GHz.
Abstract:
In accordance with the present invention, a microbolometer focal plane array is provided with at least one thermally-shorted microbolometer detector that is thermally shorted to the microbolometer focal plane array substrate. A characteristic relationship is empirically derived for determining a corrected resistance value for each detector of the microbolometer focal plane array in response to radiation from a target scene as a function of the corresponding detector resistance value, the thermally-shorted microbolometer detector resistance value, and the empirically derived characteristic relationship.
Abstract:
In a photothermal spectroscopic analyzer in which a probe light is made to fall on a thermal lens produced in a sample by an input of an excitation light and the sample is analyzed in accordance with a change of the probe light which is caused by the thermal lens, a light source of excitation light is composed of semiconductor laser light emitting means, and a light source of the probe light is composed of another semiconductor laser light emitting means, and furthermore a condenser lens for focusing the excitation light upon the sample and a condenser lens for focusing the probe light upon the thermal lens are configured by a common condenser lens. Such a photothermal spectroscopic analyzer according to the present invention satisfies all the requirements of small size, low manufacturing cost, high sensitivity, high precision, maintenance free performance, short start-up time, and automatic measurement for such a device as to perform POC analysis.
Abstract:
An infrared ray clinical thermometer enhanced in fitted probe cover stability is provided with a simple structure. A mechanism for detecting the presence or absence of a fitted probe cover is provided near the root of a probe, and is mainly composed of a slide member as a movable part, a spring as thrusting means for thrusting the slide member, and a switch for making contact with and departing from the slide member. The slide member is movable disposed in a direction nearly perpendicular to the detaching direction of the probe cover, that is, from the inner side to the outer side, and from the outer side to the inner side of the probe.
Abstract:
A two dimensional array of resistive bolometers (B) is arranged in rows and columns. Amplifiers (A0, A1 etc) amplify signals obtained from the bolometers. Instead of providing one amplifier per column, a smaller number of amplifiers is used each of which is connected to a plurality of column sense lines (L) via a multiplexer (M0, M1 etc).
Abstract:
A device and a method for testing a material, particularly a catalytically active material, are provided. In accordance with the present invention, a substance mixture is chemically converted and a radiation unit, which allows the rapid characterization of the material without a great effort, is provided for generating radiation to be at least partially absorbed by the substance mixture. At least one temperature measuring device for measuring a temperature change caused by the absorption is also provided.
Abstract:
The present invention relates to a method of manufacturing radiation detectors, in which these detectors each comprise a set of microdetectors, for example microbolometers, situated under a window that is transparent to said radiation. According to the invention, said detectors are manufactured collectively on a substrate (1), and said method comprises notably the following steps: the construction of several layers, of which, for each of said detectors, at least one layer (4) is transparent to said radiation and serves as a window, and the partial elimination of said layers principally under said transparent layer(4), such that said microdetectors (2) are placed, for each of said detectors, in one or more cavities, which are then placed under vacuum or under low pressure. The invention also relates to various radiation detectors, of which the walls form hermetically sealed cavities each containing one or more microdetectors (2).
Abstract:
A temperature dependent focal plane array operates without a temperature stabilization cooler and/or heater over a wide range of ambient temperatures. Gain, offset and/or bias correction tables are provided in a flash memory in memory pages indexed by the measured temperature of the focal plane array. The memory stores a calibration database, which is accessed using a logic circuit which generates a memory page address from a digitized temperature measurement of the focal plane array. The calibration database is comprised of an array of bias, gain and offset values for each pixel in the focal plane array for each potential operating temperature over the entire range of potential operating temperatures. The bias, gain and offset data within the database are read out, converted to analog form, and used by analog circuits to correct the focal plane array response.
Abstract:
A thermal displacement element comprises a substrate, and a supported member supported on the substrate. The supported member includes first and second displacement portions, a heat separating portion exhibiting a high thermal resistance and a radiation absorbing portion receiving the radiation and converting it into heat. Each of the first and second displacement portions has at least two layers of different materials having different expansion coefficients and stacked on each other. The first displacement portion is mechanically continuous to the substrate without through the heat separating portion. The radiation absorbing portion and the second displacement portion are mechanically continuous to the substrate through the heat separating portion and the first displacement portion. The second displacement portion is thermally connected to the radiation absorbing portion. A radiation detecting device comprises a thermal displacement element and a displacement reading member fixed to the second displacement portion of the thermal displacement element and used for obtaining a predetermined change corresponding to a displacement in the second displacement portion.
Abstract:
A passive, real-time obstacle detection system is provided that determines the presence of small, curvilinear objects such as power lines. The system generally comprises a payload system having an infrared image detection system, a crew interface having a display for the images, and software algorithms that perform image processing on the pixel images. The software algorithms employ Cellular Automata (CA) techniques to resolve the direction vectors of sub-pixels, and as such, line segments are produced that are subsequently linked for display to the flight crew. The CA techniques are further based on the nullGame of Lifenull model, wherein local rules are used to determine how pixels evolve, or propagate along a line. The linked lines are then displayed for the flight crew so that evasive maneuvers can be performed as necessary.