34 results about "Cold mirror" patented technology

The invention relates to the technical field of dew point measurement, in particular to an intelligent temperature control system and method based on a high-precision chilled mirror dew point meter, and the system comprises a chilled mirror temperature difference positioning module, a main signal selection module, a power response matching module, an interference airflow recognition module, and a current output instruction generation module. A cold mirror end temperature difference is obtained, a section and a lifting direction are judged, synchronous measuring points are screened, a minimum deviation signal is extracted, a power section is matched, a power-on instruction is constructed, a rheumatism disturbance level is identified, parameters are spliced to generate a conduction structure, and a cold mirror temperature control instruction is output. According to the method, section identifiers are constructed through temperature differences and temperature change directions, signals are screened based on time alignment, interference is avoided, power control positions section deviation directions through difference values, disturbance identification is combined with wind speed and humidity differences, disturbance levels are refined, power-on control generates time sequence instructions through multi-parameter splicing, instruction stability and control accuracy are improved, and the method is suitable for large-scale popularization and application. And dynamic closing logic is formed.

The invention discloses a method for measuring the electrification tendency of SF6 gas. The method comprises the following steps: measuring the humidity D1 of the SF6 gas in a gas chamber; and establishing a frost layer by adopting uncharged SF6 gas with the humidity of D2. The SF6 gas in the gas chamber and the uncharged SF6 gas with the humidity of D2 are mixed according to a set proportion to obtain first mixed gas, the first mixed gas is led to the frost layer, and the time T required by the first mixed gas for changing the thickness of the frost layer is measured. Leading a second mixed gas obtained by mixing the uncharged SF6 gas with the humidity of D1 and the uncharged SF6 gas with the humidity of D2 according to a set proportion to the frost layer, and measuring the time T1 required by the second mixed gas to change the thickness of the frost layer. And judging whether the SF6 gas in the gas chamber has an electrification tendency or not according to the T and the T1. According to the invention, based on the principle that SF6 <-> and H2O are combined after partial discharge, SF6 gas with certain humidity is taken as reference gas, and by measuring the elimination time for reducing a cold mirror frost layer of the reference gas to a specific thickness, the electrification tendency of the SF6 gas in the gas chamber can be measured.

1. The name of the design product: split type cold mirror dew point meter (485-I type). 2. The use of the design product: used in metallurgy and ceramic high temperature process, industrial waste gas treatment, precision manufacturing and material processing field, medicine and environmental protection field, power and industrial equipment field, aerospace temperature and humidity detection, and temperature and humidity calibration transmission of measurement industry. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a high-precision anti-interference chilled mirror dew point measuring device and method based on semiconductor refrigeration, and relates to the technical field of atmospheric environment monitoring and precise instrument manufacturing. The device mainly comprises an optical measurement module, a temperature measurement module and a control processing unit. According to the method, the mirror surface is cooled through the semiconductor cooler, and the control processing unit integrates a self-adaptive PID algorithm to dynamically adjust the refrigeration power. Light emitted by the collimated light source is reflected by the reflective mirror surface and then received by the reflective photoelectric sensor, and the reflected light intensity is dynamically compensated based on a reference light signal through the change of reflectivity so as to eliminate common-mode interference. The measurement method comprises the following steps of: initializing and recording multiple paths of optical signal baselines; step cooling of the mirror surface is controlled, and synchronous monitoring is performed; the optical signal is calculated and processed in real time, and dew formation starting is judged based on a dynamic threshold value; pID control is switched to enable the temperature to be finely balanced near the dew point, and a stable value is recorded; correcting and outputting a final dew point value by utilizing the compensation model; refrigeration is stopped, the mirror surface is evaporated and reset through waste heat, and the next circulation is started.

A display device is provided. The display device includes a light-transmitting portion, a display light source disposed on an inner side of the light-transmitting portion, and a housing accommodating the display light source and having the light-transmitting portion disposed in an opening portion. The light-transmitting part has a transparent resin base material, a first color-developing layer containing a dye or a pigment, and a second color-developing layer containing a filler comprising a cold mirror film. The first color-developing layer has a transmittance of light having a specific wavelength of 20% or more. The second chromogenic layer has a reflectance of 80% or less for light having a wavelength that is not absorbed by the dye or pigment of the first chromogenic layer, and a transmittance of 60% or more for light having a wavelength that is absorbed by the dye or pigment of the first chromogenic layer.

The invention discloses a condenser device for a high-power illumination light path, which belongs to the technical field of high-power illumination and comprises a positioning base, a positioning box body, a water cooling plate, a box body cover plate, a heat resisting sheet, a light trap box, a light trap, a cooling fin, a first off-axis reflector, a cold light mirror assembly and a second off-axis reflector. The positioning box body is provided with two arms, is L-shaped and is fixed on the positioning base; the first off-axis reflecting mirror is fixed on one arm of the positioning box body; the water cooling plate is fixed on the back surface of the first off-axis reflector on the positioning box body; the second off-axis reflector is fixed on the other arm of the positioning box body; the radiating fins are fixed on the outer surface of the positioning box body and on the back surface of the second off-axis reflector; and the cold light mirror assembly is tightly fixed on two 90-degree surfaces in the positioning box body. The integral structure is high in integration level, good in installation and maintenance performance and capable of being used in a high-power illumination light path.

To provide a display device that can improve the appearance of an object on which the display device is installed.SOLUTION: A display device 13 comprises: a translucent panel 14; a light source for display that is arranged inside the translucent panel 14 and enables display by irradiating light to the translucent panel 14; and a housing 16 that accommodates the light source for display and has an opening on the translucent panel 14 side. The translucent panel 14 has: a transparent resin base material 21; a first coloring layer 23 containing dye or pigment; and a second coloring layer 24 containing a filler 27 that is composed of a cold mirror thin film that reflects visible light and transmits infrared rays. The first coloring layer 23 has a permeability of 20% or more for light of a specific wavelength. The second coloring layer 24 has a reflectance of 80% or less for light of a wavelength that is not absorbed by the dye or pigment of the first coloring layer 23, and a permeability of 60% or more for light of a wavelength that is absorbed by the dye or pigment of the first coloring layer 23.SELECTED DRAWING: Figure 2

A display device includes a light-transmitting portion, a display light source arranged at an inner side of the light-transmitting portion, and a housing including an opening. The housing accommodates the display light source and the light-transmitting portion is arranged in the opening. The light-transmitting portion includes a transparent plastic base member, a first color exhibiting layer containing dye or pigment, and a second color exhibiting layer containing a filler made of a cold mirror thin film. The first color exhibiting layer has a transmittance of 20% or more for light having a specific wavelength. The second color exhibiting layer has a reflectance of 80% or less for light having a wavelength not absorbed by the dye or the pigment of the first color exhibiting layer and a transmittance of 60% or more for light having a wavelength absorbed by the dye or the pigment of the first color exhibiting layer.

The application discloses a high-precision anti-interference dew point measurement method of a cold mirror based on semiconductor refrigeration. The device used in the measurement method mainly comprises an optical measurement module, a temperature measurement module and a control processing unit. The method cools the mirror surface through a semiconductor refrigerator, and the control processing unit integrates a self-adaptive PID algorithm to dynamically adjust the refrigeration power. The light emitted by a collimated light source is reflected by the mirror surface and is received by a reflected photoelectric sensor. Through the change of reflectivity, the reflected light intensity is dynamically compensated based on a reference light signal to eliminate common-mode interference. The measurement method comprises the following steps: initializing and recording the baseline of multiple light signals; controlling the stepwise cooling of the mirror surface and synchronously monitoring; calculating and processing the light signal in real time, determining the dew starting based on a dynamic threshold; switching to PID control to finely balance the temperature near the dew point, and recording the stable value; correcting and outputting the final dew point value by using a compensation model; stopping the refrigeration and evaporating and resetting the mirror surface by using the residual heat, and entering the next cycle.

The present invention discloses a reflective cold mirror protection device and method for ultraviolet lamps. The device includes a protective cover disposed above the plane of the reflective cold mirror below the ultraviolet lamp, and the protective cover is sized to cover the entire reflective cold mirror. The protective cover is used to protect the reflective cold mirror from falling damage when the ultraviolet lamp is removed. The present invention has a simple structure and is easy to operate. When replacing a light source component, the reflective cold mirror below the ultraviolet lamp is protected from falling damage, thereby ensuring the reliable operation of the ultraviolet light source.

1. The name of the design product: split type cold mirror dew point meter measuring head (485-III type). 2. The use of the design product: for metallurgy and ceramic high temperature process, industrial waste gas treatment, precision manufacturing and material processing field, medicine and environmental protection field, power and industrial equipment field, aerospace temperature and humidity detection, and temperature and humidity calibration transfer of measurement industry. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. The name of the design product: cold mirror type flue gas humidity meter. 2. The use of the design product: the product is used as a cold mirror type flue gas humidity meter. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a dew-point temperature measuring device and method.The device comprises an electron microscope, an upper computer and a cold mirror type precise dew-point meter, the electron microscope is used for shooting and collecting mirror images of the dew-point meter, and the upper computer is connected with the dew-point meter and the electron microscope; and the control module is used for monitoring the photoelectric signal voltage value and the mirror surface temperature of the dew-point instrument, controlling the electron microscope to shoot and collect the mirror surface image of the dew-point instrument in real time when the photoelectric signal voltage value changes, analyzing the collected mirror surface image, calculating the number of condensates or the density value of the condensates on the mirror surface of the dew-point instrument at the moment, and calculating the temperature of the mirror surface of the dew-point instrument. And if the number of the condensates or the density value of the condensates is greater than a preset value, controlling the dew-point instrument to increase the temperature of the mirror surface, otherwise, controlling the temperature of the mirror surface to be stable and unchanged, and taking the final stable temperature as the dew-point temperature. According to the invention, the state of the mirror surface can be monitored in real time, the fine control of the voltage change value of the photoelectric signal is realized, and the growth state of the condensate on the mirror surface is controlled at the initial growth stage.

The present invention provides a head-up display (HUD), a protection method therefor, and a vehicle, comprising an image generation unit, a polarization splitter film, a first reflective unit, and a dustproof film, arranged in sequence. The image generation unit generates a first light beam carrying image information, the first light beam being first polarized light; the polarization splitter film transmits the first light beam to the first reflective unit; the first reflective unit includes at least one cold mirror, which reflects the first light beam to the dustproof film; the dustproof film transmits the first light beam; the cold mirror further transmits infrared light in a second light beam transmitted through the dustproof film and reflects non-infrared light in the second light beam to the polarization splitter film; the polarization splitter film reflects the second polarized light in the second light beam. In this HUD, the second polarized light in the second light beam is reflected by the polarization splitter film, reducing the second polarized light in the second light beam entering the image generation unit, thereby reducing the light energy entering the image generation unit and protecting the image generation unit.

1. The name of the design product: split type cold mirror dew point meter measuring head (485-II type). 2. The use of the design product: for metallurgical and ceramic high temperature process, industrial waste gas treatment, precision manufacturing and material processing field, medicine and environmental protection field, power and industrial equipment field, aerospace temperature and humidity detection, and temperature and humidity calibration transfer of measurement industry. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A piezoelectric and thermoelectric solar panel assembly includes a solar panel, a cold mirror, and a support panel. The piezoelectric and thermoelectric solar panel assembly also includes piezoelectric generator assembly disposed between the cold mirror and the support panel. The piezoelectric and thermoelectric solar panel assembly further includes a thermoelectric power generation module beneath the cold mirror.

1. The name of the design product: split type cold mirror dew point meter measuring head (485-I type). 2. The use of the design product: for metallurgical and ceramic high temperature process, industrial waste gas treatment, precision manufacturing and material processing field, medicine and environmental protection field, power and industrial equipment field, aerospace temperature and humidity detection, and temperature and humidity calibration transfer of measurement industry. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to a composite high polymer material head-up display cold light mirror and a mould thereof, the cold light mirror comprises a cold light mirror body and supports, the supports are arranged on the left side and the right side of the cold light mirror body, each support comprises a bottom plate, a side fixing plate and a rotating shaft, the bottom plates are fixed at the bottoms of the left side and the right side of the cold light mirror body, and the side fixing plates are fixed on the rotating shafts. The side fixing plates are fixed to the outer side of the bottom plate and located on the side edges of the left side and the right side of the cold light mirror body respectively, the rotating shafts are fixed to the side edges of the outer sides of the side fixing plates, and the cold light mirror body and the support are integrally formed. The cold light mirror solves the problem that the cold light mirror is difficult to adopt a rotating shaft structure, and the cold light mirror body and the support can be integrally formed.

The utility model relates to the technical field of dew-point instruments, in particular to a humidifying device for a chilled mirror type dew-point instrument, which comprises a gas circuit module and a gas supply power module, the gas circuit module is provided with a gas inlet, a gas outlet and a humidifying port which are communicated with one another, the gas inlet is connected with a sampling pipe, and the gas supply power module is connected with the humidifying port. The air outlet is connected with an inlet of a test chamber of the chilled mirror dew-point instrument, the humidifying port is connected with an air supply power module, and an electromagnetic valve module for controlling the on-off of an air path is arranged on the air path where the humidifying port is located; according to the utility model, the air supply power module and the electromagnetic valve module are used for directly collecting the environment air into the test chamber of the dew point sensor for humidification, so that the humidity of the collected air flow is not reduced along with the increase of the humidification times, and the device is suitable for high-frequency repeated verification test of low-dew-point air.

The invention relates to the technical field of calibration of satellite-borne microwave radiometers, in particular to a vacuum calibration device of a satellite-borne microwave radiometer. The variable temperature source combination is arranged above the large bottom plate and is fixedly connected with the large bottom plate; the driving mechanism is arranged above the large bottom plate and fixedly connected with the large bottom plate, and the driving mechanism is of an outward rotating type structure; the temperature control cover combination covers the periphery of the driving mechanism and is fixedly connected with the large bottom plate, and the temperature control cover combination and the driving mechanism are coaxially arranged; the cold source combination is arranged on one side of the temperature control cover combination and is fixedly connected with the large bottom plate; the heat source combination, the cold mirror combination, the feed source combination and the multi-channel receiving system are mounted on the driving mechanism.

The invention discloses a supercooled water identification and elimination device and method for a chilled mirror type precise dew-point meter, and the device comprises a light-emitting tube, a photoelectric receiver, a voltage collector, a temperature collector, a maximum refrigeration switch, and a controller. The voltage collector collects the voltage of the photoelectric signal from the photoelectric receiver, and the temperature collector collects the temperature of the mirror surface; the controller judges whether the possibility of supercooled water exists or not according to whether the temperature of the mirror surface at the dew formation moment is smaller than or equal to 0 DEG C, if yes, the maximum refrigeration switch is turned on, the mirror surface temperature is rapidly reduced until the mirror surface temperature is lower than the dew point temperature by-20 DEG C, the supercooled water is eliminated, and then the voltage value of the photoelectric signal is controlled to be a voltage target value. And an accurate frost point temperature is measured by a dew-point meter. The cold mirror surface supercooled water below 0 DEG C can be identified and eliminated, the measurement accuracy of the frost point temperature is effectively improved, and the measurement accuracy of the cold mirror type precise dew-point instrument is improved.

The invention provides a cold mirror type water vapor concentration and dew point detection system and method based on single-pixel imaging, the cold mirror type water vapor concentration detection system based on single-pixel imaging comprises a mirror surface refrigeration module, a detection module and a control module, the detection system can distinguish phase change and pollutants in the mirror surface state detection process, the reliability is high, and the detection accuracy is high. According to the detection system, the low-cost single-pixel detector is combined with the spatial light modulator, an expensive and complex area-array camera and an optical lens group in a traditional scheme are replaced, the cost and the size of the system are remarkably reduced, and the reliability of water vapor concentration detection in the semiconductor low-dew-point environment is improved.

1. The name of the design product: split type cold mirror dew point instrument (485-II type). 2. The use of the design product: used in metallurgy and ceramic high temperature process, industrial waste gas treatment, precision manufacturing and material processing field, medicine and environmental protection field, power and industrial equipment field, aerospace temperature and humidity detection, and temperature and humidity calibration transmission in the measurement industry. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The bottom of the design product is not easy to see or not visible during use, omit the top view.

1. Name of the product in this design: Split-type cold mirror dew point meter (485-III type). 2. Applications of this design: for high-temperature processes in metallurgy and ceramics, industrial waste gas treatment, precision manufacturing and materials processing, pharmaceuticals and environmental protection, power and industrial equipment, aerospace temperature and humidity detection, and calibration and transfer of temperature and humidity in the metrology industry. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The present invention discloses a position and angle adjustment device for an infrared digital imaging mechanism, comprising a fixed adjustment plate, a camera lens holder fixed to the fixed adjustment plate, a 45° cold mirror mounted within the camera lens holder, an infrared digital imaging mechanism slidably mounted on the fixed adjustment plate, and an infrared digital imaging mechanism lens adjustment block mounted on the infrared digital imaging mechanism; the infrared digital imaging mechanism moves along a guide groove toward or away from the camera lens holder; the projection lens of the infrared digital imaging mechanism is fixedly connected to the infrared digital imaging mechanism lens adjustment block, and the infrared digital imaging mechanism lens adjustment block drives the projection lens of the infrared digital imaging mechanism to move toward or away from the camera lens holder to achieve fine angle adjustment. The present invention has the advantages of simple structure, strong practicality, and simple adjustment, and meets the needs for adjusting the size, position, and clarity of projected images.

The invention discloses a hydrocarbon water dew point measurement method and system based on an OCT scanning cold mirror, which is applied to the technical field of hydrocarbon water dew point measurement and comprises the following steps: acquiring a dew point condensation image on a cooling mirror surface under OCT scanning; calculating the chromaticity of the dew point condensation image according to a CIEL * a * b * chromatic aberration formula, identifying a hydrocarbon water dew point, and training a hydrocarbon water dew point identification model based on an artificial neural network; and inputting a to-be-measured dew point condensation image to the hydrocarbon water dew point identification model to obtain a hydrocarbon water dew point identification result, and measuring the current dew point temperature. According to the method, on the basis of the color difference between the water dew point condensation film and the hydrocarbon dew point condensation film formed on the cooling mirror surface under OCT scanning, the chromaticity of the dew point condensation image is calculated and the hydrocarbon water dew point is identified by further adopting a CIEL * a * b * color difference formula, so that the hydrocarbon water dew point identification and measurement precision is effectively improved, and the subjectivity is eliminated.

The invention discloses quality detection equipment for labor protection gloves, which is applied to the field of detection equipment and is characterized in that gloves with different lengths are mounted in a sleeving manner through a sleeve and are used for quality detection of sealing performance, and a plastic packaging belt can be pulled to tightly attach and bind sleeve openings of rubber gloves through position adjustment of a clamping arm, so that the sealing performance of the rubber gloves is improved. The control console can flexibly drive the bundled rubber gloves to extend into the detection box, whether the rubber gloves leak air or not is judged in time according to the shape change and color change of the wind detection piece on the detection plate, the temperature of the mirror plate can be further reduced through the refrigeration piece, and the reliability of the rubber gloves is improved. Hot air injected into the rubber glove is sprayed on the cold mirror surface through the damaged part, so that the low-temperature mirror surface quickly generates atomization reaction, and a person is assisted in efficiently judging the specific air leakage position of the rubber glove through the transparent box body.

The application discloses a kind of SF6 gas electric tendency determination method, comprising the following steps: measuring the humidity D1 of SF6 gas in gas chamber. Frost layer is established using SF6 gas without electricity and humidity D2. The first mixed gas obtained by mixing SF6 gas in gas chamber with SF6 gas without electricity and humidity D2 according to a set ratio is passed to the frost layer, and the time T required for the first mixed gas to change the thickness of the frost layer is measured. The second mixed gas obtained by mixing SF6 gas without electricity and humidity D1 with SF6 gas without electricity and humidity D2 according to a set ratio is passed to the frost layer, and the time T1 required for the second mixed gas to change the thickness of the frost layer is measured. Whether the SF6 gas in the gas chamber has an electric tendency is determined according to T and T1. The application uses the principle of combining SF6 ‑ with H2O after partial discharge, using SF6 gas with a certain humidity as reference gas, by measuring the elimination time of the reference gas cold mirror frost layer to a certain thickness, the electric tendency of the SF6 gas in the gas chamber can be determined.

The invention belongs to the technical field of dew point measurement, and relates to an accurate temperature control dew point measurement method, which comprises the following steps of: fitting a hot end of a thermoelectric refrigerating unit with a cold mirror surface, fitting a cold end of the thermoelectric refrigerating unit with a cold head of a compressor, and controlling the temperature of the cold head of the compressor to be lower than an estimated dew point temperature; the thermoelectric refrigerating unit is controlled to heat, so that the cold mirror surface temperature is higher than the estimated dew point temperature; feeding a sample gas into the cavity to keep stable ventilation; the heating power of the thermoelectric refrigerating unit is gradually reduced, so that the temperature of the cold mirror surface is gradually reduced until the intensity of the reflected light signal monitored by the light receiver is suddenly reduced, and at the moment, the cold mirror surface is just condensed; the heating power of the thermoelectric refrigerating unit is controlled, so that the temperature of the cold mirror surface is stably kept at the condensation temperature for a period of time; and the dew-point temperature is obtained by reading the reading of the temperature sensor. The thermoelectric refrigerating unit is reversely arranged, higher measurement precision is obtained through reverse heating of the thermoelectric refrigerating unit, meanwhile, the temperature of the cavity where the cold mirror surface is located is constant, and the measurement precision is improved.

The invention discloses an efficient integrated nitrogen component analysis method, and belongs to the technical field of chemical analysis, the efficient integrated nitrogen component analysis method comprises the following steps: introducing a nitrogen sample to be detected into an automatic flow control distribution device through an outlet of a nitrogen sampling steel cylinder; the automatic flow control distribution device comprises a programmable industrial control chip, a flow control module and a plurality of electromagnetic valves; the programmable industrial control chip controls the flow control module and the opening and closing of the plurality of electromagnetic valves according to a preset mode, and distributes a nitrogen sample to be tested to the trace oxygen analyzer, the gas chromatograph and / or the chilled mirror dew point instrument according to test requirements; a trace oxygen analyzer, a gas chromatograph and a chilled mirror dew-point meter are used for analyzing and detecting oxygen, other gas components except the oxygen and moisture components in the nitrogen sample respectively; and obtaining a component analysis result of the to-be-detected nitrogen sample. Multiple parameters are analyzed at the same time through one-time sample injection, and the sample and test cost is saved.