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6793389 |
An integrated sensor comprising a thermopile transducer and signal processing circuitry that are combined on a single semiconductor substrate, such that the transducer output signal is sampled in close vicinity by the processing circuitr...
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6670538 |
A radiation sensor which includes a thermopile for detecting radiant energy. The thermopile and a support rim for the thermopile are fabricated as an integrated unit to form a support chip. The support chip is mated to a mating chip so t...
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6641301 |
A method and apparatus for maintaining a viewing window of a detector substantially clean includes enclosing the detector within a housing, and moving a target surface relative to the viewing window to create an airflow adjacent the view...
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6342667 |
A method for forming thermal isolation for a micro thermopile device comprises steps of forming a narrow etching window on the membrane and forming a plurality of micro connection structures each crossing the narrow etching window and co...
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6300554 |
A thermoelectric sensor device is disclosed consisting of polysilicon, titanium or AlSiCu as the thermocouple of material for thermoelectric sensor device. The features of the present process are: Selecting a material such as aluminum, t...
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6222111 |
A thermopile radiation detector (10) has an optical filter layer (16) that supports a thermopile detector (22) and, in addition, filters undesired wavelengths. The filtering is accomplished by selectively absorbing electromagnetic radiat...
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6180867 |
A thermal sensor array includes a dielectric layer including a plurality of individual thermal sensors and a pattern of deposited electrical interconnections facing at least one surface of the dielectric layer for providing electrical co...
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5695283 |
A thermopile detector for a temperature measuring instrument physically and electrically configured to supply an output signal which indicates a target temperature substantially independent of the influence of ambient temperature changes...
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5689087 |
A highly integrated thermal sensor (10) is responsive to radiation having wavelengths within a predetermined band of wavelengths. The sensor, which may be a thermopile, is comprised of a substrate (16) comprised of at least one semicondu...
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5409548 |
A ferroelectric material, its fabrication technique, and use as a detector aterial, in a ferroelectric detector array is disclosed. The material is an alloy of essential pure components of Pb 2 (Fe, Nb)O 2 and Pb 2 (Fe, Ta)O 2 each w...
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5230745 |
A thermocouple housing having a ceramic protection tube with a closed end for immersion into a metal melt and an open end for receiving thermocouple wires. The ceramic protection tube has a reduced diameter portion spaced from the open e...
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5056929 |
A temperature compensation type infrared sensor includes a substrate having a central pit and functioning as a heat sink with an insulation film formed on the top face of the substrate and defining a diaphragm located above the pit, a pl...
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5045123 |
Disclosed is a thermopile improved in its measurement sensitivity and manufacturing cost, which comprises a pillar-shaped substrate having a side extending in the parallel direction to an incident light to be measured so as not to be irr...
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4900367 |
A fully reticulated pyroelectric imager is made by affixing a first major surface of a layer of poled pyroelectric material to a substrate and polishing a second major surface of the pyroelectric layer to reduce the layer to a predetermi...
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4877331 |
A temperature measuring device for a rotating roll comprises a housing with guide rollers around which a belt is looped and held under tension by an idler roll. One boundary of the housing is arched concavely in accordance with typical r...
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4717787 |
A thermoelement which rapidly determines temperature and which is protected from disturbing signals during the measurement of temperature in a vacuum furnace composed of a thermocouple which is protectively sheathed by a transparent quar...
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4648991 |
Pyroelectric crystals having relatively high figures of merit (p/K) of the order of 1.8 or more are provided. They are preferably prepared by doping alanine substituted triglycine sulfate crystals with phosphorous and/or arsenic.
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4598163 |
A pyroelectric detector comprising a functional portion in which opposed electrodes 111 to 118 are formed on both surfaces of a pyroelectric type substrate 101 and four light receiving electrode portions a, b, c and d are structured by t...
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4558342 |
The detecting element of a thermoelectric infrared detector consists of p-n junctions of a thermopile which are located on a thin layer of unsupported silicon dioxide. The silicon dioxide spans an opening which extends through a silicon ...
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4488269 |
A lattice array of metal sheathed mineral insulated cables each cable having a coaxial conductor comprising alternate lengths of dissimilar thermo-electric material to provide thermo-electric junctions. The junctions are in two groups...
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4475103 |
An integrated-circuit thermocouple signal conditioner having on a single chip an amplifier and a transistor circuit responsive to the chip temperature for developing a cold-junction compensation signal referred to 0° Celsius. The amplif...
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4365106 |
A very thin insulator having a dipole structure such as a dielectric material having ferroelectric, pyroelectric and or thermodielectric properties, is used as the insulator insulating an electrode of an electrode pair from a semiconduct...
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4259866 |
A viewing tube extension for an infrared radiation pyrometer includes a tube having a heater therein. The heater has a passageway so that the pyrometer sights a glass ribbon moving through a forming chamber of a flat glass making apparat...
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4250384 |
A very thin insulator having a dipole structure such as a dielectric material having ferroelectric properties and, preferably, also having thermodielectric properties, is used as the insulator insulating an electrode of an electrode pair...
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4211888 |
A thermal element arrangement having a plurality of thermal elements connected in series, and in which an insulation layer has thereon a plurality of metal conductor paths situated on the semiconductor substrate. Each thermal element has...
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4185982 |
A noncontacting-type pyrometer for measuring the temperature of a glass ribbon has a hot junction at the center of a circular black body adjacent a first surface thereof and a layer of thermal insulating material on the opposite second s...
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4180759 |
The invention provides a thermal camera tube having a reticulated pyroelectric target, that is to say a target having a plurality of separate pyroelectric elements arranged in rows and columns and separated by channels. Each of the separ...
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4166390 |
A scanning radiometer having a series of laminations forming a tightly bonded sandwich structure each being electrically insulated from adjacent ones thereof, said series including a thermometric or thermo responsive material, a heat pum...
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4147562 |
A pyroelectric detector as formed by parylene C polymer film.
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4111717 |
A thermopile type radiation detector for use in radiation pyrometry having small size and high performance in which the thermopiles are formed by evaporating the thermocouple leads onto a thin substrate together with a pattern distributi...
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4053806 |
A pyroelectric detector employing a substrate supporting a thin, i.e., 0.5 to 5 μm thick, solid layer of pyroelectric material with an intermediate layer of nucleating material, i.e., a material which is wettable by a solution of the py...
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3920480 |
A thermoelement comprising a monocrystal possessing different electric conduction coefficients along at least two principal crystallographic axes, wherein a thermoelectromotive force appears under the effect of the thermal flux therethro...
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3881109 |
A synthetic material has the formula Pb 5 Ge 3 -y X y O 11 , O<y<3. The element X is a group IV element, preferably silicon. The material may for example be used as the pyroelectric material in a pyroelectric device, such as a p...
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3842189 |
A contact array for electrically connecting two electrical devices, such as a radiation detector and a miniaturized electrical circuit, but with a minimum of heat conduction between the devices. Each of the contacts of the array includes...
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3839640 |
A low cost mass produced intrusion detection device which responds to a temperature difference between ambient temperature and the body temperature of an intruder who is moving past the sensor. The combination of body temperature and mov...
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3839094 |
A thermoelectric generator that utilizes the high temperature generated by luid compression waves within a resonant tube that is subject to a supersonic air stream. The resonant tube, which may take any one of a number of forms, is locat...
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3819419 |
A radiometer operative in a vacuum under steady-state conditions. The front element is an aluminum sheet painted on the outer side with black or other absorptive material of selected characteristics. A thermocouple is bonded to the inner...
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3802925 |
A compact highly sensitive temperature compensating differential radiometer suitable for measuring different wavelengths of solar radiation and for controlling various light sources in weather or light resistance testing apparatus. The d...
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3773564 |
An infra-red intensity detector which comprises a polarized ceramic substrate composed of PbTiO 3 , MnO 2 of from 0.8 to 1.2 mol percent of PbTiO 3 , and La 2 O 3 of from 1.0 to 2.0 mol percent of Pb TiO 3 , and at least one couple of...
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3769096 |
Sensitive pyroelectric detectors are readily fabricated from thin films of organic polymer materials having net dipolar moments. Such materials, exemplified by polyvinylidene fluoride, are prepared for use by mechanical working so as to ...
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3733499 |
A pyroelectric detector is disclosed which comprises a crystal of T1 3 AsSe 3 having two opposing faces with an electrically conducting electrode contacting each face. The detector is connected to an amplifier, the output of which can ...
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3706226 |
A rectangular calorimeter with a copper body except for an upper surface of constantan foil. To the calorimeter's base is attached a thermocouple and a differential thermocouple wire, and to the upper surface is attached a copper center ...
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3654466 |
Radiation detection is accomplished by sensing the piezoelectric response to the expansion and contraction in a crystal element due to the heating effect of the carrier energy to be sensed. Sensitivity to a subcarrier is enhanced by util...
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3641346 |
A pyroelectric pulse energy measuring device is disclosed in which a pyroelectric element is mounted adjacent a heat sink and within a reflective container. A lens is provided at one end of the container so that incident radiation imping...
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3604933 |
An electromagnetic radiation detection device having increased sensitivity comprises ferroelectric crystalline sensing and reference components, temperature stabilized with a ferroelectric TANDEL at a temperature near a crystallographic ...
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3596514 |
A power meter for measuring radiation including a radiation target disc, a heat sink for cooling the periphery of the disc, and a circumferentially extending array of radial thermocouples for measuring the total power of energy incident ...
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3586439 |
A lead zirconium titanate crystal possessing pyroelectric characteristics is employed in a direct reading pyrometer for measuring directly the temperature of an object, principally by the infrared radiation emitted therefrom. The pyroele...
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3582209 |
A thin germanium crystal prism in the form of an isosceles trapezoid or parallelogram whose base surface and opposite parallel surface are coated with platinum about 70 millimicrons thick, the coating having been applied in a vacuum on t...
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3581092 |
An array of thermal detectors for infrared radiation measurement is fabricated on a single piece of pyroelectric material. A common transparent electrode to the infrared radiation is applied thereto and positioned on one side of the laye...
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3575048 |
A calorimeter of the ballistic thermopile type particularly useful for measuring energy in high power pulsed laser beams utilizes a glass filter as the absorbing medium. Since the thermal conductivity of glass is ordinarily poor, a highl...
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