240 results about "Infrared window" patented technology

A metal clad switchgear assembly comprising multiple compartments defined within an electrical enclosure is provided. The compartments interchangeably accommodate electrical components, for example, current transformers, a circuit breaker, a control power transformer, an epoxy encapsulated potential transformer, etc., electrical cables, and bus bars in predetermined positions for allowing front access and / or rear access to them. One or more compartments are configured for enabling the electrical cables to enter into and / or exit out from the electrical enclosure for allowing front and / or rear access to the electrical cables. A mounting block assembly is positioned in one or more of the compartments for mounting, enclosing, and providing front access to the electrical components. One or more infrared windows and inspection windows are positioned on a front side and / or a rear side of the switchgear assembly for scanning and providing a visual indication of the electrical components, the electrical cables, and the bus bars.

The invention discloses a wafer-level vacuum encapsulated infrared focal plane array (IRFPA) device and a method for producing the same, wherein a double-wafer bonding mode is adopted to produce an infrared detector and realize the wafer-level encapsulation, a complementary metal-oxide-semiconductor integrated chip (CMOSIC) and a micro-electromechanical systems (MEMS) device are separately produced, so the integration of the CMOSIC is realized, the production flexibility of the MEMS infrared detector device is also increased, and the wafer-level encapsulation can be realized at the same time. The invention has the advantages that: a reflector for a complementary metal-oxide-semiconductor integrated chip (CMOS) reading circuit and a resonance absorption structure is produced on a wafer, the other wafer is utilized to produce the MEMS structural part of the IRFPA and is simultaneously used for producing the infrared window of the IRFPA, the resonance absorption structure is utilized to provide the infrared absorption efficiency of the infrared IRFPA device, the wafer-level encapsulation of the IRFPA device is also realized at the same time, so the size and the production cost of the IRFPA device are benefited to be reduced.

The invention discloses a multi-field coupled environment simulating and online monitoring / observing system. The system comprises: a main body test box provided with a quartz observing window and an infrared window; a mechanical loading module comprising two coaxially arranged mechanical loading shafts and respectively connected with the main shafts of a universal testing machine and a sample clamping device; a multi-field service environment module arranged outside the main body test box and comprising an infrared laser rapid heating device, an X-ray radiation device, a corrosion gas box and a cooling system and respectively used for realizing heating, irradiating, corroding and cooling environments; and a damage online monitoring / observing module comprising a surface / interface strain real-time observation system, an in-situ fracture behavior observation system, a damage signal collecting system and an infrared thermodetector which are arranged outside the main body test box, and damage signal detectors arranged at the upper end and the lower end of a tested sample, and wherein devices contained in the damage online monitoring / observing module are respectively used for real-time capturing of strain information, in-situ fracture image information, damage information and temperature information, and synchronously run through a cynchronous control system.

A probe cover of a tympanic thermometer and tympanic thermometer assembly includes a base and a sheath attached on the base. The base is a ring-shaped thin film object with a central opening permitting pass of the probe of a tympanic thermometer, and is engaged with flanges at the bottom of the probe. The sheath includes a circumferential wall that strains and circles around the sidewall of the probe, and an infrared window fitted on an opening at the front end of the probe. Since the thickness of the infrared window is thicker than that of the circumferential wall and the infrared window is free of pleats to keep a very uniform thickness, infrared can accurately penetrate through the infrared window to the probe of a tympanic thermometer for measuring a precise body temperature.

The invention provides a two-waveband infrared optical system, belongs to an infrared remote sensing optical system, and solves the problems of limited optical path layout of the conventional map-integrated device and large volume of the entire device. The system comprises a scanning rotating mirror, a two-waveband infrared optical lens, a spectrometer, an infrared focal plane detector and a signal processor, wherein the two-waveband infrared optical lens consists of an infrared window, a beam splitter, a medium wave lens and a long wave lens; the scanning rotating mirror is positioned above the infrared window; an infrared optical fiber transmits infrared light output by the medium wave lens to the spectrometer; the infrared focal plane detector is positioned on an output optical axis of the long wave lens; and output signals of the spectrometer and the infrared focal plane detector are transmitted to the signal processor through a transmission cable. The system has small volume, high integration level, and convenient and flexible use, can realize automatic scanning, identification and track of a target by observing two wavebands of external scenery, and can be effectively applied to military or civil fields of missile infrared guidance, atmospheric pollution, remote measurement of poisonous gas and the like.

The invention discloses an MEMS (Micro Electro Mechanical System) infrared sensor based on film bulk acoustic resonator and a preparation method of the MEMS infrared sensor. The MEMS infrared sensor sequentially comprises a metal block, a piezoelectric oscillation pile and an acoustic wave reflection layer, wherein the piezoelectric oscillation pile and the metal block are sequentially deposited on the acoustic wave reflection layer; the piezoelectric oscillation pile comprises a bottom electrode, a piezoelectric layer and an upper electrode which are sequentially deposited on the acoustic wave reflection layer; the upper electrode is arranged on the surface of the infrared sensor and called as an infrared window film; the material of the infrared window film is a conductive film with infrared transmittance rate, so that infrared light irradiates the piezoelectric layer by transmitting the upper electrode; the acoustic wave reflection layer comprises a substrate, a support layer and an air cavity; the support layer is deposited on the substrate; the air cavity is formed between the substrate and the support layer; the piezoelectric oscillation pile is deposited on the support layer. The MEMS infrared sensor is small in size, low in production cost and simple in preparation process; the MEMS infrared sensor can be repeatedly used and is capable being produced in batches and integrating arrays, low in production cost, easily compatible with external circuits, free of refrigeration and sensitive to the overall infrared wave band.

The present invention relates to a lithium tantalate film infrared detector and the preparing method thereof. The invention comprises the following components: an infrared filtering window, a resonance chopped wave modulator, a focusing lens, a pyroelectric lithium tantalate film infrared measuring probe, a heat sink cavity, a preamplifier, a low-pass filter, an electric power and signal output interface, a casing and an environment temperature detecting filter. The method for preparing the detector comprises the following steps: selecting a substrate, growing a SiO2 layer on the front and back surface, depositing Si3N4 layer on the front surface in sequence, sputtering a Ti layer, sputtering a photoetching Pt electrode layer, producing a lithium tantalate film layer, depositing a phototeching Al electrode layer, growing a photoetching SiNX antireflection layer and sputtering a black layer to complete the double unit structure infrared probe. The focusing lens is coated with an anti-reflection film. The infrared window is pasted with a narrowband filtering film. The preamplifier is built with a JFET tube or operational amplifier. The low-pass filter is built with an operational amplifier. The resonance chopped wave modulator is driven by piezoelectricity or electromagnet, and the resonance frequency is 1Hz-1000Hz.

A metal clad switchgear assembly comprising multiple compartments defined within an electrical enclosure is provided. The compartments interchangeably accommodate electrical components, for example, current transformers, a circuit breaker, a control power transformer, an epoxy encapsulated potential transformer, etc., electrical cables, and bus bars in predetermined positions for allowing front access and / or rear access to them. One or more compartments are configured for enabling the electrical cables to enter into and / or exit out from the electrical enclosure for allowing front and / or rear access to the electrical cables. A mounting block assembly is positioned in one or more of the compartments for mounting, enclosing, and providing front access to the electrical components. One or more infrared windows and inspection windows are positioned on a front side and / or a rear side of the switchgear assembly for scanning and providing a visual indication of the electrical components, the electrical cables, and the bus bars.

The present invention discloses a spectral selective emissive material that can be used for infrared stealth. The spectral selective emissive material is a layered structure comprising a substrate, and metal layers and infrared transparent dielectric layers which alternately coat the surface of the substrate. The present invention also provides a method for preparing the spectral selective emissive material. By means of the design and optimization of the metal layers and the infrared transparent dielectric layers, it can be known based on theoretical analysis and calculation that the spectral selective emissive material can achieve emissivity of less than 0.20 and less than 0.25 in infrared window wavebands of 3.0 [mu]m to 5.0 [mu]m and 8.0 [mu]m to 14.0 [mu]m respectively, and an emissivity of greater than 0.80 in a non-window waveband of 5.0 [mu]m to 8.0 [mu]m. The spectral selective emissive material realizes infrared selective emission, takes account of a low emissivity and radiation heat dissipation requirement, and has great significance for infrared stealth.

The invention discloses radiation type heat insulation powder paint for aluminum alloy sectional materials and a preparation method thereof. The paint comprises the following ingredients by mass parts: 100 parts of film forming agents, 4.0 to 10 parts of curing agents, 0.6 to 1.5 parts of flatting agents, 0.2 to 0.6 part of degasifying agents, 5 to 10 parts of infrared radiant materials and 40 to 60 parts of filling materials. The radiation type heat insulation powder paint for aluminum alloy sectional materials prepared by the invention can convert ultraviolet light, visible light and near infrared light in absorbed solar energy into heat energy, uses an infrared radiation mode for passing through an atmosphere infrared window in a wave band between 8 and 13.5 mum and for being efficiently emitted to the outer atmosphere layer, so the goal of reducing the temperature is reached. The radiation type heat insulation powder paint has the infrared heat reflecting rate of 65 percent, and in addition, the invention has the advantages of simple and convenient manufacture, low cost and wide application prospects.

The invention discloses a direct-injection type flame detector with a self-checking light source and a flame detection method. The direct-injection type flame detector comprises a shell, an infrared light source, an ultraviolet light source, infrared windows, ultraviolet windows, an infrared sensor I, an infrared sensor II, an ultraviolet sensor, an infrared light source driving circuit, an ultraviolet light source driving and signal extraction circuit, an amplification sampling circuit I, an amplification sampling circuit II, a signal processing circuit, a power processing circuit, a signal output circuit, an alarm display module and a self-checking signal input circuit. The direct-injection type flame detector has the advantages that: a flame infrared light source is externally arrangedand self-checked; flame signal data are acquired by using the infrared sensors and the ultraviolet sensor; fire occurrence judgment which comprises infrared flame and background amplitude judgment, infrared flame and background frequency judgment, ultraviolet flame frequency signal judgment and ultraviolet and infrared composite judgment is performed; and by setting an infrared background detection wave band, when infrared interference occurs on the scene, false alarm resistance is improved, and the environmental suitability of the detector is improved.

The invention relates to the technical field of data identification, in particular to a non-uniformity correction method for gas leakage detection. The non-uniformity correction method comprises the following steps: a gas leakage detection device acquires a gain coefficient Gij and a bias coefficient Qij of each temperature section and stores acquired infrared images; gas areas in the infrared images are identified through texture and edge features; the temperature of each point of images in non-gas areas is detected, and the areas are divided; non-uniformity correction is performed on images in each sub-area through a non-uniformity correction unit. The invention further provides the gas leakage detection device. The gas leakage detection device comprises a casing, wherein a main control chip is arranged in the casing and connected with an infrared imaging module, a display module and a power module, the power module supplies power to the other modules, and the infrared imaging module comprises an infrared lens, an infrared window and an infrared image sensor which are arranged sequentially. The non-uniformity correction method for gas leakage detection and the gas leakage detection device can improve the gas non-uniformity correction effect and improve the gas leakage detection precision.

The invention discloses a surface temperature detection system for a rotation part in a high-temperature high-pressure container, relating to a temperature detection technology. The surface temperature detection system is structurally characterized in that an infrared window and sealing interface assembly (10) is connected onto a pressure container wall (80), and the infrared window and sealing interface assembly (10), an infrared high-temperature optical fiber (20), an infrared temperature measuring module (30), a signal cable (70) and a computer (40) are sequentially connected; and the infrared window and sealing interface assembly (10) is spatially opposite to a rotating body (50) through an infrared radiation optical path (60). The surface temperature detection system can be used for accurately measuring the surface temperature of an object within a wider intermediate-high temperature range of 250-750 DEG C, measuring the surface temperature of a rotating object in a high-temperature high-pressure container, eliminating the influence on infrared temperature measurement by emissivity variation caused by surface property variation of an object to be measured to a larger extent after the object to be measured runs for a long time.

The present invention discloses the method of low temperature vacuum sealing and welding between the window frame and the optical window of metal Dewar. In the welding between the window frame of kovar alloy material and the optical window of infrared transmitting material, the optical window is first vacuum plated to form Cr / Au coating as the transition layer in the parts to be welded, and the welding in performed with In as welding material at low temperature. The present invention has the outstanding advantage of low temperature welding producing no negative effect on the antireflective coating in the infrared window. Using soft In as the welding material can buffer the difference between the optical window material and the kovar alloy material in expansion coefficient. The metal Dewar has gas leakage rate superior to 3E(-12) torr.liter / sec and gas releasing rate far lower than that of traditional technological process.

The invention provides a typhoon positioning detection method based on a Himawari meteorological satellite. A meteorological satellite cloud atlas in 0.64-micron short-wave infrared window frequency band is adopted, the detection precision is higher, and the instantaneity is good; since the form of the typhoon is highly irregular at the beginning and the end of the typhoon, a detected center location and a CMA optimal path are large in deviation; and when the typhoon forms obvious eye of wind or is at a mature stage, the detection method has high accuracy on the centralized positioning of thetyphoon.

The invention discloses a near-infrared window fluorescent imaging agent containing diazosulfide and a fluorene ring and a preparation method thereof. A modifiable group is introduced into the fluorene ring of the fluorescent compound, increased modifiable sites can be used for connection of different bioactive substances, water solubility and biological compatibility can be improved, and the application range in the biomedical field can be expanded. The fluorescent imaging agent has the advantages of high fluorescence intensity, no toxicity, good biocompatibility, and the like, and has excellent application prospects. The invention also discloses the application of the fluorescent imaging agent in the field of brain glioma, systemic angiography and sentinel lymph node dissection. In addition, the imaging agent has good modificability, and also can be used for in-vitro detection of various disease markers, in-vivo diagnosis and surgical navigation treatment of breast cancer, prostate cancer and colon cancer and other cancer, evaluation of curative effect after tumorectomy, and the like.

This invention relates to a sort of auxiliary system of the car night drive with multi-wavelength automatic transfer, and it consists of the variable wavelength infrared illuminating system, the hyperfocal distance wavelength automatic transfer system, the hyperfocal distance infrared imaging optical system, the infrared imaging and signal processing system, the ECU which has the wavelength automatic transfer control export, and the projection or screen and the object clew system. The illuminating wavelength of the variable wavelength infrared illuminating system is changed by the ECU which has the wavelength automatic transfer control export, at the same time it changes the corresponding infrared window which has the protection cladding and it enters the optical filter box of the hyperfocal distance infrared imaging optical system in order to obstruct the disturbance of the opposite lamp-house and to advance infrared illuminating condition of the road, so it realizes the imaging in focus in order to debase the accident rate and to advance the security of the car. It can select the different imaging wavelength automatically when the congener car encounters. This invention can apply the even more complicated road condition, its low cost and systematization and compaction can be used for the night drive auxiliary system of the motor vehicles.

The invention relates to a determination device for the Seebeck coefficient of a flexible thin film material. The determination device comprises an infrared thermal imager, a sample to be measured, a heating assembly, a vacuum pump, a direct-current power supply, wires, a digital source, electrodes, a thermal dissipation assembly, a vacuum box, an infrared window, a base and a support; the vacuum box is installed on the base, the infrared window is arranged on the top of the vacuum box, the heating assembly and the thermal dissipation assembly are installed on the positions, in the vacuum box, of the base and used for suspending the sample to be measured, the vacuum pump connected with the vacuum box is installed at the side of the base and used for ensuring that the sample to be measured is located in a vacuum environment, the infrared thermal imager is installed on the base through the support and located over the infrared window, the direct-current power supply is connected with the heating assembly and used for supplying power to the heating assembly, and the digital source is connected with the two ends of the sample to be measured through the wires and the electrodes. The determination device is simple in structure, easy and convenient to operate, low in cost and suitable for being easily used and popularized in the industrial field and the scientific research field.

Provided is glass-ceramics which comprises A12O3 and rare earth oxide, yttrium oxide, and / or alkaline earth oxide. Uses of the glass-ceramics include dental articles, orthodontic appliances, abrasive particles, cutting tools, infrared windows, and ceramic bearings.

The invention discloses a portable detection device for detecting a sighting line zero position of an infrared sniperscope, and belongs to the technical field of infrared optics detection. The conventional detection device is not a shaped special instrument. The detection device provided by the invention is characterized in that: a sealed hood is fastened on a base; a black body, a round disc target, a planar reflector and an off-axis parabolic mirror are fixed on the base and positioned in the sealed hood; a buckling base is fixed on the base and positioned out of the sealed hood. An infrared window is formed on the lateral wall of the sealed hood and opposite to the buckling base; a cross slot hole and a plurality of different round holes are formed on the round disc target; and the centre of the cross slot hole and the centers of a plurality of round holes are positioned on the same circle of the round disc target. The off-axis parabolic mirror, the infrared window and the buckling base are sequentially arranged by taking the axis of parallel light reflected by a reflector on the off-axis parabolic mirror as an axis. The black body, the centre of the cross slot hole or the center of one of the plurality of round holes and the planar reflector are coaxially arranged on one side of the axis of the reflector on the off-axis parabolic mirror as an axis sequentially.

The invention discloses an uncooled infrared detector comprising an infrared window and a detection image element array which is provided with a micro-bridge unit structure, wherein the infrared window is a micro-lens array composed of a plurality of micro convex lens units or Fresnel lens units; and a space between the micro-lens array and the detection image element array is set within a range, in which incident infrared rays can be collected on a deck of the micro-bridge unit structure of the detection image element array. The infrared window disclosed by the invention is provided with a micro convex lens array or a Fresnel lens array structure, so that lights can be collected on the deck of the detection image element array after passing through the infrared window; the structure has larger optical filling factors, so as to provide strong supports to design and preparation of detection units with smaller sizes and high flexibility of the detector; and compared with a double-layer micro-bridge unit structure, the preparation process of the detection unit is not increased.

This invention is about a kind of ZnS infrared window reflection reducing and protecting coating and its producing method, belonging to the field of coating technology. We choose 9.2micron as the central wavelength lambda 0. On Base 1 of the ZnS material we make lambda 0 / 4 - lambda 0 / 4 double-layer reflection reducing and protecting coating series. The refractive index of the high refractive index coating 2 is 3.2 -4.0 and the optical thickness is 2-3micron. Meanwhile, the refractive index of the low refractive index coating 3 is 2.3 -3.0 and the optical thickness is 2-3micron. The producing method is the radio-frequency magnetron sputter method, choosing Ge as the target source and CH4 / Ar as the electric discharge gas. Then deposit Ge1-xCx reflection reducing and protecting coating on the base of ZnS, and by changing the depositing time we can make each coating's optical thickness is lambda 0 / 4. This invention is easy, economic, efficient and has satisfying effect of reflection reducing.

An electronic apparatus comprising: a housing; an infrared filter window supported by the housing; and an infrared transceiver mounted in the housing so that infrared light emitted by the infrared transceiver is focused in the vicinity of the infrared window, and radiates from the infrared filter window in an approximately 30 degree illumination cone.

The present invention relates to a multiband common-optical-path image-spectrum associated remote sensing measurement system and method. The system includes an infrared window (1), a two-dimensional rotating mirror (2), a planar reflector (3), a reflective multiband infrared lens (4), a Fourier interference spectrum module (5), an image-spectrum associated processing module (6), a power supply module (7), a refrigerating module (8), and a display module (9); the incident light enters from the infrared window (1), is reflected by the two-dimensional rotating mirror (2), and then is reflected by the planar reflector (3) to the reflective multiband infrared lens (4) and then is split by a spectroscope (42); the transmitted light is focused by means of a convergent lens and is imaged on an infrared detector (43); the reflected light is focused on an infrared optical fiber coupler (44) and enters the Fourier interference spectrum module (5) through an infrared optical fiber to form an interference pattern, and further, spectrum data is obtained through Fourier transformation; the image-spectrum associated processing module (6) effectively combines broadband spectrum imaging and non-imaging spectrum data, and controls the two-dimensional rotating mirror (2) to point to a target, thereby implementing intelligent remote sensing measurement. The present invention has capabilities of performing local scene region spectrum measurement and multi-target tracking spectrum measurement, has high speed, an appropriate data amount, and low cost.

An optical navigation apparatus comprises a substrate with a sensor integrated circuit and an infrared source formed thereon; a sensor cover shielding the sensor integrated circuit and the infrared source; at least one visible light source formed outside the sensor cover and electrically connected with the substrate; a light guide located outside the sensor cover and covering the visible light source; and an outer housing covering the light guide and the substrate, and the outer housing comprises an infrared window and a side wall capable of guiding visible light towards and illuminating a region of the outer housing. In such an arrangement, the outer housing of the present invention is not only used as a casing for protection, but also served as light guide and distribution structure to reflect and re-distribute light sufficiently to achieve a uniform illuminated character shape.

The invention belongs to the technical field of biological materials, and in particular relates to a second infrared window excitation / emission organic small molecule fluorescent dye and a preparationmethod and application thereof. The application of the fluorescent dye comprises a synthetic process of an organic small molecule heptamethine cyanine dye fluorescent dye and formation of a complex of the organic small molecule heptamethine cyanine dye fluorescent dye with fetal bovine serum (FBS). Under heating conditions, such small molecules can easily enter the hydrophobic cavities of the FBSto form the complex. The proportion of monomers increases, meanwhile the molecular rigid structure enlarges, so that the fluorescence quantum yield is greatly increased. The complex enables imaging of blood vessels in legs, abdomens and brains of mice.

The invention provides a performance evaluation device for a gas leakage infrared imaging detecting system. The performance evaluation device comprises an air chamber with infrared windows, a facial differential blackbody radiation source, a gas concentration sensor, a temperature sensor, a pressure sensor and a collimating optical system. The facial differential blackbody radiation source comprises a target blackbody and a background blackbody, wherein the air chamber is arranged between the target blackbody and the background blackbody. The gas concentration sensor, the temperature sensor and the pressure sensor are arranged in installation holes in the side wall of the air chamber. The background blackbody is located on the focal plane of the collimating optical system. The front face and the rear face of the air chamber are respectively provided with one infrared window. The side wall of the air chamber is provided with an air inlet hole and an air outlet hole. The background blackbody is provided with a hollowed-out area for forming a target pattern with spatial frequency being fx. The temperature of the target blackbody can be controlled and is used for forming temperature difference between the target blackbody and the background blackbody. By increasing concentration of gas to be detected in the air chamber continuously, the performance evaluation device can comprehensively evaluate the temperature resolution and the spatial resolution of the system.

The invention discloses an infrared radiation transmitting conformal millimeter wave antenna, which consists of an infrared radiation transmitting window substrate, thin film chips, a thin film ground strap and a feeder line, wherein the feeder line forms good ohmic contact with the thin film chips; the thin film chips are arranged on the inner surface of the window substrate at intervals; the feeder line is oppositely positioned on the inner surface of the window substrate; and the thin film ground strap is covered on the outer surface of the window substrate. A millimeter wave antenna is integrated on an infrared window of the conventional infrared detection equipment on the basis of the conventional millimeter wave antenna technology to form a millimeter wave / infrared dual-mode detection conformal antenna which is used for realizing millimeter wave / infrared dual-mode shield-free, coaxial, common-caliber and conformal composite detection and identification.

The invention relates to a high-temperature spectrum emissivity measuring method and device of an infrared window. The device comprises a modulated type infrared radiation source, a monochromator and an integrating sphere, a probe hole of the integrating sphere is provided with a detector, the detector is connected with one port of a detection unit, the modulated type infrared radiation source is connected with one port of the detection unit, the detection unit is connected with a computer, a transmission heating furnace, the monochromator and a reflection heating furnace are connected with a control unit, and the control unit is connected with the computer. According to the invention, the high-temperature emissivity of the infrared window can be measured, problems in radiation temperature measurement of the infrared window are solved, interference in target radiation measurement caused by radiation of the infrared window itself is eliminated, and the measuring accuracy of an infrared detection system is improved. An annular heat conductive ceramic heating plate is combined with an insulated ceramic pressure plate to heat the infrared window, the temperature of a surface-mounted thermocouple is measured so that the temperature of the infrared window is controlled, the transmittance and reflectivity of the infrared window can be measured in the non room temperature condition, and the high-temperature emissivity of the infrared window is solved.