Abstract:
Implementations of the present disclosure involve an apparatus and method to measure the long-wave irradiance of the atmosphere or long-wave source. The apparatus may involve a thermopile, a concentrator and temperature controller. The incoming long-wave irradiance may be reflected from the concentrator to a thermopile receiver located at the bottom of the concentrator to receive the reflected long-wave irradiance. In addition, the thermopile may be thermally connected to a temperature controller to control the device temperature. Through use of the apparatus, the long-wave irradiance of the atmosphere may be calculated from several measurements provided by the apparatus. In addition, the apparatus may provide an international standard of pyrgeometers' calibration that is traceable back to the International System of Units (SI) rather than to a blackbody atmospheric simulator.
Abstract:
A photodetector for the detection of radiated electromagnetic energy includes at least one bolometer nanowire disposed at least partially within a photon trap. The at least one nanowire has at least one blackened surface. The blackened surface is configured to absorb radiated electromagnetic energy ranging from far-infrared light to visible light.
Abstract:
An IR sensor comprises a heat sink substrate (10) having portions (12) of relatively high thermal conductivity and portions (14) of relatively low thermal conductivity and a planar thermocouple layer (16) having a hot junction (18) and a cold junction (20), with the hot junction (18) located on a portion (14) of the heat sink substrate with relatively low thermal conductivity. A low thermal conductivity dielectric layer (22) is provided over the thermocouple layer (16), and has a via (24) leading to the hot junction (18). An IR reflector layer (26) covers the low thermal conductivity dielectric layer (22) and the side walls of the via (24). An IR absorber (30; 30′) is within the via. This structure forms a planar IR microsensor which uses a structured substrate and a dielectric layer to avoid the need for any specific packaging. This design provides a higher sensitivity by providing a focus on the thermocouple, and also gives better immunity to gas conduction and convection.
Abstract:
There are provided an IR receiver and liquid crystal shutter glasses with the same, and more particularly, an IR receiver and liquid crystal shutter glasses having the same to solve the problem in that a pair of the crystal liquid shutter glasses malfunctions by infrared generated from the surrounding environment, such as a halogen light.The liquid crystal shutter glasses comprises: an IR receiver including an IR sensor to receive an IR signal transmitted from a display device; two lenses of a right eye lens and a left eye lens having their respective liquid crystal shutters; and a liquid crystal driving unit to open and close the liquid crystal shutters of the two lenses, wherein the IR receiver comprises: an IR lens unit being convex toward the IR sensor; and an IR absorber to absorb the IR entering at a predetermined height/angle or more, among the incidence of the IR toward the IR sensor.
Abstract:
The present invention provides an infrared sensor and an infrared sensor module having reduced noise, improved detection precision, and reduced manufacture cost. The infrared sensor includes a first substrate transmitting infrared light including at least one reduced-pressure and sealed cavity, at least one infrared sensing unit provided on the side of the first substrate, and at least one infrared sensing unit generating an output change. The infrared sensor includes a second substrate stacked on the first substrate with a recess, a reflection face capable of reflecting the infrared light, and at least one arithmetic circuit for amplifying or integrating an output, arranged in such a manner that the reflection face is sandwiched between the at least one sensing unit and the least one arithmetic circuit.
Abstract:
A temperature measuring method comprises a step of detecting, by an infrared thermometer, the intensity of an infrared radiation coming from a region of interest of a patient for determining the patient's temperature, and a step of pointing a target area that is coincident with the region of interest and is the even and smooth surface of a body having a homogeneous underlying vascularisation, and being preferably devoid of hair or chitinous or keratinous skin formations.
Abstract:
It is disclosed a device (100) for measuring a patient's temperature using an infrared thermometer (1) to detect the intensity of an infrared radiation coming from the body of that patient, whose temperature is wished to be known; the device further comprises a room-temperature sensor to send said temperature to a memory (38). A processing unit (33) receives as an input the room-temperature signal (B) and a temperature signal (A) proportional to the infrared radiation, the room-temperature signal (B) enabling the processing unit (33) to determine a corrective parameter to rectify the temperature (A) detected by the sensor member (7) and to determine the patient's real temperature. The invention allows the problem due to the non-stabilisation in the thermometer environment to be solved.
Abstract:
The present invention discloses an improved probe structure, which is installed in the body of an infrared clinical thermometer and comprises a plastic hollow casing having an opening; a curved block annularly arranged inside the opening; a hollow sleeve arranged inside the casing and along the perimeter of the opening; a temperature sensor arranged inside sleeve and below the curved block; a support element arranged inside the sleeve and supporting the temperature sensor; and a thermal insulation ring encircling the temperature sensor and pressing against the inner wall of the sleeve. The thermal insulation ring has an outer diameter larger than a width of the temperature sensor, and an air gap is thus formed between the temperature sensor and the inner wall of the sleeve; the top of the thermal insulation ring has an altitude higher than the top of the temperature sensor, and another air gap is thus formed between the temperature sensor and the curved block. Thereby is effectively retarded heat conduction from the external to the temperature sensor.
Abstract:
A heat fixing device capable of preventing deterioration of a temperature sensor by measuring the surface temperature of a heating roller at all times, and an image forming apparatus. The heat fixing device includes a temperature measurement unit for measuring the surface temperature of the heating roller. The temperature measurement unit further includes the temperature sensor, a conduit having a reflective surface formed inside thereof to lead infrared rays radiating from the heating roller to the temperature sensor, and a thermal insulation member installed between the conduit and the temperature sensor.
Abstract:
The invention relates to a device for fibre optic temperature measurement with an optical fibre having a radiation coupling in area and a detector-associated radiation coupling out area. Such a device is characterized in that the optical fibre is constructed with high transmission in the infrared (IR) spectral range, particularly in the range from approximately 2 nullm to approximately 20 nullm.