30 results about "Infrared telescope" patented technology

An infrared telescope utilizes two mirrors in an off-axis, eccentric-pupil, re-imaging configuration. To improve the image quality of traditional two mirror telescopes, the reflective surfaces of both the primary and secondary mirrors are ellipsoidal. The ellipsoidal surface of the primary mirror has a greater eccentricity than the ellipsoidal surface of the secondary mirror. The infrared light entering through the eccentric pupil strikes the ellipsoidal reflective surface of the primary mirror. The light is reflected from the primary mirror to the ellipsoidal reflective surface of the secondary mirror. An intermediate image of the object being viewed is formed between the primary and secondary mirrors. The light is reflected from the secondary mirror to an image plane. An aperture stop is located between the secondary mirror and the image plane. The image plane is typically located within a cold shield, to reduce the likelihood that stray light will reach the image plane.

The invention discloses a large-caliber infrared telescope adjustable supporting device based on a gradient type porous structure. A prior large-caliber infrared telescope supporting device cannot beadjusted. And large assembly stress and residual stress exist. The device comprises a flexible unit, a supporting base and a fixing unit. The flexible unit comprises a top supporting disc, a flexiblesupporting column and a bottom supporting disc; the two ends of the flexible supporting column are respectively and fixedly connected with the center positions of the top supporting disc and the bottom supporting disc. The flexible supporting column comprises a top heat insulation block, a flexible supporting block and a bottom heat insulation block. The top heat insulation block is provided witha top heat insulation hole. The aperture of the top heat insulation hole gradually increases in the direction from the outer end to the inner end of the top heat insulation block. The bottom heat insulation block is provided with a bottom heat insulation hole. The aperture of the bottom heat insulation hole gradually increases in the direction from the outer end to the inner end of the bottom heatinsulation block. According to the invention, the contraction amount of the shape memory alloy can be changed by adjusting the magnitude of the input current, so that the spatial pose of the large-caliber reflector is adjusted.

The invention discloses onboard near-infrared CO2 vertical pillar concentration telemetering equipment. The onboard near-infrared CO2 vertical pillar concentration telemetering equipment comprises an infrared telescope system, a posture adjustment platform driven by a two-dimension motor, an optic guiding system, a spectrograph detector system positioned in a constant temperature box, a GPS (global position system) and a data processing system, wherein the posture adjustment platform is adopted to adjust the infrared telescope system to measure the ground reflected light and the sun scattered light, the obtained light signal is directly converged on a spectrograph positioned in the constant temperature box through the optic guiding system and is imaged on a detector through the dispersion of the spectrograph to obtain signal data; the data processing system is utilized to process signal data to resolve the CO2 vertical pillar concentration information, meanwhile, the device is internally provided with the GPS, the GPS is communicated with a computer through a USB (Universal Serial Bus) data line, and the GPS and the geographical location information are combined to obtain the region distribution of the CO2 vertical pillar concentration. The onboard near-infrared CO2 vertical pillar concentration telemetering equipment provided by the invention is capable of realizing the rapid monitoring of the region distribution of the CO2 vertical pillar concentration, and solves the problem that atmosphere CO2 gas telemetering measure is lacked at present.

The invention discloses a South Pole infrared telescope sealing window capable of preventing and removing frost and a manufacturing method thereof. An optical medium film system is arranged on a substrate of sealing window glass; the optical medium film system contains a transparent conductive film layer; the South Pole infrared telescope sealing window is characterized in that the transparent conductive film layer is divided into two layers, namely a planar transparent conductive film and a linear transparent conductive film; an insulating dielectric antireflective film layer is arranged between the planar transparent conductive film and the linear transparent conductive film; two electrodes are arranged on the edge of the upper surface of the transparent conductive film layer; the linear transparent conductive film and the planar transparent conductive film are connected in parallel. The invention is applicable to sealing window defrosting of a sealing window-type South Pole infrared telescope; the problem that the conventional transparent conductive film cannot be applied to an infrared spectral zone is solved; the infrared transmittance of the sealing window is improved to a great extent.

The invention discloses an off-axis three-reflection type objective used for a portable uncooled infrared telescope, which is used in an uncooled infrared telescope for overcoming the defects of large size and weight as well as poor image quality of the existing similar infrared telescopes. The off-axis three-reflection type objective used for the portable uncooled infrared telescope comprises a protection window mounted in a telescope cone, a diaphragm and an image sensitive element on an image plane. The off-axis three-reflection type objective used for the portable uncooled infrared telescope is characterized in that an off-axis three-reflection structure consisting of a first reflector, a second reflector and a third reflector is arranged in the telescope cone, wherein the first reflector and the third reflector are concave non-spherical reflectors; the second reflector is a convex non-spherical reflector; the spherical centers of the three reflectors are on the same straight line so as to form a system optical axis; and the middle point of the first reflector deviates the system optical axis, the middle point of the third reflector deviates the system optical axis, and the center of the image plane deviates the system optical axis. The off-axis three-reflection type objective used for the portable uncooled infrared telescope has the beneficial effects that the uncooled infrared telescope formed by the off-axis three-reflection type objective is small in size and light in weight, is convenient to carry, is free of central obscuration and has high imaging quality.

An infrared telescope utilizes two mirrors in an off-axis, eccentric-pupil, re-imaging configuration. To improve the image quality of traditional two mirror telescopes, the reflective surfaces of both the primary and secondary mirrors are ellipsoidal. The ellipsoidal surface of the primary mirror has a greater eccentricity than the ellipsoidal surface of the secondary mirror. The infrared light entering through the eccentric pupil strikes the ellipsoidal reflective surface of the primary mirror. The light is reflected from the primary mirror to the ellipsoidal reflective surface of the secondary mirror. An intermediate image of the object being viewed is formed between the primary and secondary mirrors. The light is reflected from the secondary mirror to an image plane. An aperture stop is located between the secondary mirror and the image plane. The image plane is typically located within a cold shield, to reduce the likelihood that stray light will reach the image plane.

The invention discloses a black body spherical surface temperature measurement system for external field infrared radiation measurement and correction. A tailor-made black body target ball which hangs under a common sounding balloon rises into the air at a certain raising speed. A plurality of temperature sensors are arranged on the surface of the black body target ball and are used for sounding the ball surface temperature and transmitting the measured data which is subjected to primary treatment of a microprocessor to the ground through a wireless data transmission module. A wireless data receiving module on the ground transmits the received data to a data processing computer, and the data processing computer processes the data so as to obtain an actual temperature of the target ball surface. The infrared radiation data of the target ball in a specific wave band can be acquired according to the target ball surface temperature, the infrared emitting ability and the projected area. The target ball is tracked and detected by an infrared telescope so as to acquire the infrared radiation data of the target ball. A correction parameter can be acquired by analyzing and comparing the two kinds of radiation data.

The invention relates to the field of technical detection equipment, in particular to a portable handheld technical detection auxiliary instrument which comprises a box body, a micro-scale infrared telescope, a recording device, a highlight lamp, an infrared camera, a display screen, a second-generation ID card induction zone, a finger-print identification induction zone, a switch, a battery device and a control device, wherein the micro-scale infrared telescope is arranged on the upper surface of the box body; the recording device, the highlight lamp and the infrared camera are arranged at the upper part of the front surface of the box body from the left to the right; the display screen is arranged in the middle of the front surface of the box body; the second- generation ID card induction zone, the finger-print identification induction zone and the switch are sequentially arranged at the lower part of the front surface of the box body; the control device is arranged in the box body; and the battery device is internally arranged at the bottom of the box body. The auxiliary instrument has the advantages of simplicity in operation, portability, multiple purposes with one object and case solving time reduction, can help a user to improve the judging effect so as to quickly confirm the judgment of the user, and guarantees the case solving success rate to the utmost extent.

The invention relates to a condenser tumble dryer (1) with a drum (2) for articles (4) to be dried, a drive motor (28) for the drum (2), a process air duct (24), a process air blower (27), a heating and cooling system (14, 16, 18, 19, 25, 30) for the process air (11), a temperature sensor (21) and a control device (20). The temperature sensor (21) is an infrared telescope (21) and is arranged to simultaneously measure heat radiation from at least two components (5, 14, 16, 18, 19, 24, 25, 27, 28, 30) of the condenser tumble dryer (1) which are to be monitored. The invention also relates to a method for operating a condenser tumble dryer (1) of the type.

The invention discloses an optical machine structure based on infrared area array detector scanning and imaging. The structure comprises a pitching orientating lens 1, an infrared telescope lens 2, a direction compensation pendulum lens 3, an infrared imaging lens 4, an infrared area array focal plane detector 5 and a direction scanning rotary table 6. By the aid of the structure, one single infrared area array detector is capable of scanning and imaging overall by 360 degrees, the fuzzy effect is prevented during infrared image acquisition due to rotation of the platform, and the advantages of long integral time and high sensitivity of the infrared area array focal plane detector can be played fully. The structure has the advantages that overall scanning is implemented, image fuzzy slur is avoided, and the telescope structure and a secondary imaging objective lens structure are combined.

An infrared telescope, an apparatus for the harmonizing of its input and output axes including an infrared camera enabling the observation of an infrared scene and delivering a video signal representing the infrared scene, the infrared camera having a sighting axis that constitutes the input axis; a display screen receiving the video signal and displaying the corresponding image in the visible frequency spectrum; a bispectral, visible and infrared collimator, collimating the image displayed on the display screen at infinity, the collimator having an optical axis that constitutes the output axis; an infrared source positioned in a predefined way with respect to the output axis and positioned so that its radiation is collimated at infinity by the collimator; an element the reflection of the radiation coming from the infrared source at output of the collimator towards the infrared camera, the element enabling the formation on the display screen of an image of the infrared source; a device to measure the shift between the predefined position of the infrared source and the image of the infrared source on the display screen; and a device adjusting the telescope to reduce the shift.

The invention relates to a high-resolution refrigeration photoelectric radar based on spiral line scanning. The high-resolution refrigeration photoelectric radar comprises an infrared field lens, a swing scanning lens driving circuit, an infrared processing circuit, an infrared detector, an infrared telescope, a compensation swing scanning lens, a slip ring, a two-dimensional turntable, a turntable driving circuit and an interface circuit. The turntable driving circuit drives the two-dimensional turntable to rotate and feeds back a position signal to a computer through the interface circuit; the swing scanning lens driving circuit drives a compensation swing scanning mirror to swing in an azimuth direction and a pitching direction. An image optically amplified by the infrared telescope sequentially passes through the compensation swing scanning mirror and the infrared field lens, the amplified image is collected by the infrared detector and transmitted to the infrared processing circuit, the infrared processing circuit transmits a processed image signal to the computer, and a control signal and a synchronous signal are further sent to the swing scanning lens driving circuit and theturntable driving circuit. The two-dimensional compensation swing scanning mirror is adopted, so that the photoelectric radar can perform spiral line scanning to realize high-resolution imaging; andabnormal imaging in the pitch axis lifting process is eliminated.

The invention provides a vehicular infrared telescopic device comprising a detection portion, a display portion and a control portion. The detection portion comprises a mounting base adsorbed to the exterior top of a vehicle, a rotary base capable of rotating relatively, and an infrared telescope fixed on the top of the rotary base, wherein the rotary base is mounted on the top of the mounting base. An emitter is installed inside the infrared telescope. The display portion is installed inside the vehicle and comprises a receiver. The emitter is wirelessly and electrically connected with the receiver. The vehicular infrared telescopic device has the advantages that the infrared telescope is used for receiving infrared emitted from an object, an infrared picture is converted by a converter into a common digital signal of visible graph, the signal is then emitted through the emitter, and the signal is received by the receiver before being displayed through a display, and accordingly the object can be observed in the dark, drivers can drive at night conveniently and especially rescuers can rescue at night conveniently.

The invention discloses a rotating bracket for an infrared telescope. The rotating bracket comprises an upper fixing groove, a lower fixing groove, telescopic legs, sleeves, support legs, fastening knobs, an upper fixing plate, fixing screws, a lower fixing plate, a support base, a mounting disc, a fine adjustment knob, a support column, nuts and a rotating shaft. The rotating bracket for the infrared telescope has the beneficial effects that the rotating bracket for the infrared telescope is reasonable in design; rubber sleeves are mounted outside the support legs; each of the rubber sleevesis provided with an anti-slip bump; since the rotating bracket is used outdoors, the anti-slip rubber sleeves can play the anti-slip effect to guarantee the stability of the rotating bracket; the upper fixing groove and the lower fixing groove are cooperatively fixed by the fixing screws and the nuts and are detachably connected; through the detachable connection of the fixing screws and the nuts,the infrared telescope mounted on the rotating bracket can be better mounted and dismounted; and the top of the support column is mounted in a support base mounting groove and is rotatably connectedto the support base through the rotating shaft so as to conveniently adjust the vertical angle of the infrared telescope.

The invention provides a flexible displacement actuator for a spliced mirror surface of a large optical infrared telescope. The flexible displacement actuator comprises a guide pin, a lifting output cylinder, a voice coil motor, a folding plate spring, a sliding bearing, a compression spring, a deep groove ball bearing, an encoder reading head, a scale plate, a nut rotation type ball screw, a transition sleeve, an inner side fixing cylinder, a meshing straight tooth cylindrical gear, a stainless steel anti-backlash spur gear, a direct current motor and an outer side fixing cylinder. The nut rotation type ball screw, the transition sleeve, the inner side fixing cylinder, the meshing straight tooth cylindrical gear, the stainless steel anti-backlash spur gear and the direct current motor form a coarse-level control part, and the guide pin, the lifting output cylinder and the voice coil motor form a fine-level control part. The two-stage design concept is adopted, and the precision and positioning requirements can be met.

The invention relates to an infrared telescope full-frame imaging output method and system, infrared glass lenses with different curvatures and different refractive indexes are arranged on the same axis in an infrared telescope to form an infrared imaging lens, and an infrared photosensitive unit is arranged to be an uncooled infrared focal plane array to form an infrared detector in the infrared telescope. The method comprises the following steps: infrared light acquisition, non-uniformity correction, target category identification, target distance measurement, image identification and image fusion. According to the full-frame imaging output method and system for the infrared telescope, the infrared image collected by the infrared telescope is subjected to non-uniform correction, target category identification, target distance measurement, image identification and image fusion, real-time analysis and labeling of the infrared image are completed, and analysis and understanding of the target in the infrared image are achieved.

The invention discloses a fast search method for infrared automatic focus. The search algorithm adopts a hill-climbing method with a variable step size, and uses the method of finding the median of the image sharpness multiple times to ensure the accuracy of the sharpness evaluation. The method reduces the instability in the focusing process and reduces the number of steps required for the rough focusing process. The invention effectively solves the problems of inaccurate calculation of image definition, high auto-focus failure rate and slow focusing speed on the infrared telescope by the traditional auto-focus algorithm, and realizes fast and accurate auto-focus on the infrared telescope.

The invention relates to an infrared thermal image telescope control system. A rocker unit is arranged, the rocker unit is connected with a signal processing unit, a first potentiometer and a second potentiometer are connected with the signal processing unit, and the signal processing unit comprises a first-stage signal amplifier and a second-stage signal amplifier; the first potentiometer and the second potentiometer are connected with the first-stage signal amplifier, and the first-stage signal amplifier is connected with the second-stage signal amplifier; an ARM processor unit comprises an electrical level driving circuit; the second-stage signal amplifier is connected with the electrical level driving circuit; an enter key is connected with the electrical level driving circuit; and the ARM processor unit performs corresponding control on an infrared telescope according to a signal of the electrical level driving circuit. Therefore, the size of the whole machine is reduced, and meanwhile, a user can conveniently control the infrared telescope.

The invention discloses an adjustable support device for a large aperture infrared telescope based on a gradient porous structure. The supporting device of the existing large-aperture infrared telescope cannot be adjusted. And there are large assembly stress and residual stress. The invention includes a flexible unit, a support base and a fixed unit. The flexible unit includes a top support plate, a flexible support column and a bottom support plate; both ends of the flexible support column are respectively fixed to the centers of the top support plate and the bottom support plate. The flexible support column includes a top heat insulation block, a flexible support block and a bottom heat insulation block. The top heat insulation block is provided with a top heat resistance hole. Along the direction from the outer end to the inner end of the top heat insulation block, the diameter of the top heat resistance hole gradually increases. Bottom heat-resisting holes are provided on the bottom heat-insulating block. Along the direction from the outer end to the inner end of the bottom heat insulation block, the diameter of the bottom heat resistance hole gradually increases. The invention can change the shrinkage of the shape memory alloy by adjusting the magnitude of the input current, and then adjust the spatial pose of the large-diameter reflector.

The invention relates to a distance measuring method and system based on external equipment and an infrared telescope. Infrared glass lenses with different curvatures and different refractive indexes are arranged on the same axis in the infrared telescope to form an infrared imaging lens; the infrared light sensing unit is arranged to be an uncooled infrared focal plane array to form an infrared detector in the infrared telescope. The distance measuring method of the infrared telescope comprises the following steps: determining the category of a target to be measured, calibrating a data set, training a detection model, importing the model, detecting the target, measuring the distance of the target, identifying an image, and observing and displaying. According to the method, the detection model used for target detection is obtained through acquisition of the infrared data set, data set calibration and model training, the detection model is used for performing category identification, target distance measurement, image identification and identification superposition on the infrared target, real-time distance measurement and labeling of the infrared image target are completed, and the problem that in the prior art, the detection efficiency is high is solved. The distance measurement operation is complex, and the distance measurement error is large.

The invention discloses a device capable of changing a cold diaphragm and an imaging wave band of an infrared camera, and belongs to the field of photoelectric detection. In order to overcome the defect that the detection capacity of the infrared camera is restricted by normal-temperature iris diaphragms and optical filters, an infrared detector, an aperture diaphragm disc and an optical filter disc are integrated in an infrared camera dewar, and the aperture diaphragm disc and the optical filter disc can rotate through a rotating shaft of the aperture diaphragm disc and a rotating shaft of the optical filter disc. The rotating shaft of the aperture diaphragm disc and the rotating shaft of the optical filter disc are driven by a rotating shaft motor of the aperture diaphragm disc and a rotating shaft motor of the optical filter disc to rotate. Incident light of an infrared telescoping optical system enters the infrared camera dewar through a window of the infrared camera dewar and is imaged on the detector on the focal plane of the infrared camera through the aperture diaphragm disc and the optical filter disc. A heat radiation isolating layer is used for reducing heat radiation of the outer layer of the infrared camera dewar to the focal plane of the infrared camera, the aperture diaphragm disc and the optical filter disc. Diaphragms of different apertures are installed on the aperture diaphragm disc. Optical filers with different wave bands are installed on the optical filter disc.

The invention discloses an optical system for a space astronomical observation infra-red telescope, which comprises a reflection-type focal-free main optical system (1), a single-axis scanning mirror (2) and a subsequent imaging optical system (3), wherein in the reflection-type focal-free main optical system (1), ray is incident into a reflexing mirror (6) via an eccentric light through hole after being successively reflected by a main mirror (4) and a secondary mirror (5), and is reflected into the single-axis scanning mirror (2) successively by the reflexing mirror (6) and a prism (7); the single-axis scanning mirror (2) ensures that the aiming line of the optical system of the space astronomical observation infra-red telescope is constant by one-dimensional linear scanning; the incident ray of the reflection-type focal-free main optical system (1) is reflected to the subsequent imaging optical system (3); the subsequent imaging optical system (3) comprises an off-axis reflection type system, a color separation filter and a focal plane; the off-axis reflection type system corrects the aberration of the reflection-type focal-free main optical system (1); and the emergent ray of the reflection-type focal-free main optical system (1) is divided into two or more than two spectral channels by the color separation filter to be imaged to a corresponding focal plane.

The invention discloses an infrared automatic focusing quick search method. The search algorithm adopts a hill-climbing method with a variable step size, the accuracy of definition evaluation is ensured by using a method of solving image definition for multiple times and taking a median, and in a coarse focusing stage, instability in a focusing process is reduced by using a hill-climbing method of momentum and acceleration, and the number of steps required in the coarse focusing process is reduced. According to the method, the problems of inaccurate image definition calculation, high automatic focusing failure rate and low focusing speed of a traditional automatic focusing algorithm on the infrared telescope are effectively solved, and rapid and accurate automatic focusing on the infrared telescope is realized.

The invention discloses an unmanned aerial vehicle with astronomical instruments. The unmanned aerial vehicle comprises an unmanned aerial vehicle fuselage. An upper top box is mounted at the center of the upper surface of the unmanned aerial vehicle fuselage. A first rotor wing, a second rotor wing, a third rotor wing and a fourth rotor wing are mounted at the front, rear, left and right cornersof the unmanned aerial vehicle fuselage correspondingly. A first vehicle beam frame is connected between impeller shafts of the third rotor wing and the fourth rotor wing. According to the unmanned aerial vehicle, a shooting device arranged in the upper top box automatically shoot and record astronomical data information videos obtained by an infrared telescope, optical signals are converted intoelectrical signals, the electrical signals are stored and then remotely transmitted to a terminal of workers through a signal information transceiver for display, people obtain astronomical information according to shot video data, by designing combination of the astronomical instruments and the unmanned aerial vehicle, limitation of high mountain terrain is avoided when the infrared telescope isused for research astronomical star, and thus people research astronomy more conveniently.

A high-resolution cooling photoelectric radar based on helical line scanning, including: infrared field mirror, swing mirror drive circuit, infrared processing circuit, infrared detector, infrared telescope, compensation swing mirror, slip ring, two-dimensional turntable, turntable Drive circuit and interface circuit; the turntable drive circuit drives the rotation of the two-dimensional turntable and feeds back the position signal to the computer through the interface circuit; the swing mirror drive circuit drives and compensates the swing mirror to swing in the two directions of azimuth and pitch, and is used by the infrared telescope optics The enlarged image is collected by the infrared detector and transmitted to the infrared processing circuit after passing through the compensation swing mirror and the infrared field mirror in turn. The infrared processing circuit transmits the processed image signal to the computer, and also sends control signals and synchronization signals to the swing scan Mirror drive circuit and turntable drive circuit. The invention adopts a two-dimensional compensation swing mirror to enable the photoelectric radar to perform helical scanning, realize high-resolution imaging, and eliminate abnormal imaging during the raising process of the pitch axis.

The invention discloses a black body spherical surface temperature measurement system for external field infrared radiation measurement and correction. A tailor-made black body target ball which hangs under a common sounding balloon rises into the air at a certain raising speed. A plurality of temperature sensors are arranged on the surface of the black body target ball and are used for sounding the ball surface temperature and transmitting the measured data which is subjected to primary treatment of a microprocessor to the ground through a wireless data transmission module. A wireless data receiving module on the ground transmits the received data to a data processing computer, and the data processing computer processes the data so as to obtain an actual temperature of the target ball surface. The infrared radiation data of the target ball in a specific wave band can be acquired according to the target ball surface temperature, the infrared emitting ability and the projected area. The target ball is tracked and detected by an infrared telescope so as to acquire the infrared radiation data of the target ball. A correction parameter can be acquired by analyzing and comparing the two kinds of radiation data.

The invention discloses a South Pole infrared telescope sealing window capable of preventing and removing frost and a manufacturing method thereof. An optical medium film system is arranged on a substrate of sealing window glass; the optical medium film system contains a transparent conductive film layer; the South Pole infrared telescope sealing window is characterized in that the transparent conductive film layer is divided into two layers, namely a planar transparent conductive film and a linear transparent conductive film; an insulating dielectric antireflective film layer is arranged between the planar transparent conductive film and the linear transparent conductive film; two electrodes are arranged on the edge of the upper surface of the transparent conductive film layer; the linear transparent conductive film and the planar transparent conductive film are connected in parallel. The invention is applicable to sealing window defrosting of a sealing window-type South Pole infrared telescope; the problem that the conventional transparent conductive film cannot be applied to an infrared spectral zone is solved; the infrared transmittance of the sealing window is improved to a great extent.

The invention relates to an infrared telescope multi-dimensional integrated control system, an infrared telescope is provided with a multi-dimensional rocker unit, different rocker states of the multi-dimensional rocker unit correspond to different control functions, and a processor unit correspondingly controls the infrared telescope by detecting rocker state signals of the multi-dimensional rocker unit. The rocking bar state of the multi-dimensional rocking bar unit comprises rocking at a middle position and in four directions, and the control functions of the infrared telescope comprise image amplification, image reduction, distance measurement of a target in an image, adjustment of an image color plate and correction of the image. The rocker state of the multi-dimensional rocker unit corresponds to the control function of the infrared telescope, so that keys of an existing infrared telescope are greatly reduced, the size of a shell of the infrared telescope is reduced, and meanwhile use is facilitated.

The invention relates to a condensing drum dryer (1) having a drum (2) for articles (4) to be dried, a drum (2) for the drum (2) ), process air channel (24), process air fan (27), heating / cooling system (14, 16, 18, 19, 25, 30) for process air (11), temperature sensor (21) and a control device (20). The temperature sensor (21) is an infrared telescope (21) and is arranged to simultaneously measure at least two monitored components (5, 14, 16, 18, 19, 24, 25, 27, 28, 30) thermal radiation. The invention also relates to a method for operating such a condensation tumble dryer (1).

The invention provides a mid-infrared atmospheric radiation detection system for astronomical site selection. The mid-infrared atmospheric radiation detection system comprises a shell and a refrigerating device, wherein a heat preservation sealing cavity I and a heat preservation sealing cavity II are formed in the shell, an infrared telescope is fixedly arranged in the heat preservation sealing cavity I, an infrared detector is fixedly arranged in the heat preservation sealing cavity II, and a detection port of the infrared detector is connected with a light outlet of the infrared telescope;and the refrigerating device comprises a refrigerating machine and refrigerating sheets, at least one refrigerating sheet is fixed on the outer walls of the heat preservation sealing cavity I and theheat preservation sealing cavity II, a cooling pipeline is arranged between a cooling liquid outlet and a cooling liquid inlet of the refrigerating machine, and the cooling pipeline is connected withthe refrigerating sheets. According to the mid-infrared atmospheric radiation detection system, the temperature of the infrared telescope and the infrared detector can be rapidly reduced and the temperature fluctuation can be controlled in a small range by adopting a cavity-dividing temperature control method, so that the spontaneous radiation of the infrared detection system is reduced, and the measurement accuracy is ensured.