22 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.

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.

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.

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 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 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 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 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.

This invention relates to a precision cold mirror dew point testing device, comprising a dry air branch, a humid air branch, a mixing ring, a regulating valve, and a dew point meter. The input ends of both the dry and humid air branches are connected to the output end of an external air compressor. The output ends of both branches are connected to the input end of the mixing ring. The input ends of the regulating valve and the dew point meter are both connected to the output end of the mixing ring. The output end of the regulating valve is connected to a sample sensor. The dew point meter is used to detect the dew point temperature of the gas mixed by the mixing ring. This setup, compared to traditional detection methods, can detect extremely low moisture content, meeting the measurement error testing requirements of the sample sensor. Simultaneously, it can quickly capture humidity changes, avoiding production accidents or experimental data deviations caused by humidity fluctuations.

1. The name of the design product: split type cold mirror dew point meter measuring head (485-Plus 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 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.

1. The name of the design product: split type cold mirror dew point instrument (485-Plus 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.