33results about How to "Realize simultaneous measurement" patented technology

The invention belongs to the technical field of magnetic confinement controllable thermonuclear fusion, and particularly relates to an in-situ laser diagnosis system and method for plasma fuel thermal desorption / impurity deposition in a wall material. The long-pulse laser module emits a long-pulse laser beam, and the long-pulse laser beam sequentially passes through the dichroscope I, the convex lens, the dichroscope II and quartz glass on the vacuum chamber and is irradiated to the surface of the sample to be detected; the short-pulse laser module emits a short-pulse laser beam, and the short-pulse laser beam sequentially passes through the dichroscope I, the convex lens, the dichroscope II and quartz glass on the vacuum chamber of the fusion device and is irradiated to the surface of the sample to be detected; the irradiated radiation light of the to-be-detected sample sequentially passes through the focusing lens, and a spectral signal is transmitted to the spectrum acquisition system. According to the system, high-efficiency in-situ laser thermal desorption can be carried out on fuel gas retained in a wall material, in-situ laser diagnosis of impurity deposition can also be carried out, the two methods are flexibly coupled into one set of system and can be independently used or simultaneously carried out, and a reference basis is provided for fusion reactor divertor operation control and wall material research and development in the future.

The invention discloses a single-excitation dual-output multi-parameter measurement eddy current sensor, which is characterized in that after the eddy current sensor is arranged on the surface of a tested piece, a sine excitation signal with certain frequency and power is introduced into an excitation coil, and a magnetic field generated by the excitation coil generates eddy current on the surface of the tested piece; in the actual detection process, the lift-off value of the eddy current sensor and the surface of the tested piece is changed due to mechanical vibration or random working conditions, impedance in the excitation coil is changed, and then the current value of a loop where the excitation coil and the capacitor are located is changed. The impedance change caused by lift-off can be represented by acquiring the voltage values at the two ends of the capacitor; the differential receiving coil receives a combined magnetic field of a primary magnetic field and an eddy current field under the combined action of the primary magnetic field and the eddy current field, and has a lift-off suppression effect to a certain extent, and the balance of the receiving coil is broken only when a defect is encountered, so that the defect is detected and represented by measuring a voltage signal of the receiving coil.

The invention relates to the technical field of optical communication related calculation, in particular to an experimental method and device for measuring a vortex beam orbital angular momentum spectrum based on coaxial interferometry, and the device comprises a helium-neon laser, a beam-expanding collimation system, a light splitting modulation assembly, a spatial light modulator, a phase polarization adjustment assembly and a CCD camera. A spatial light modulator is arranged on a light path of a Gaussian beam output by the helium-neon laser, and a CCD camera is arranged at the tail end of the light path of the beam modulated by the spatial light modulator; the beam expanding and collimating system and the light splitting and modulating assembly are sequentially and coaxially arranged on a light path between the helium-neon laser and the spatial light modulator, and the phase polarization adjusting assembly is coaxially arranged on a light path between the spatial light modulator and the CCD camera. According to the invention, stable coaxial interference of the vortex beam and accurate measurement of the orbital angular momentum spectrum can be realized by using a small amount of experimental equipment, and the construction difficulty of an experimental interference light path is greatly reduced.

The invention discloses a flexible pressure-temperature dual-mode sensor, which comprises a pressure sensitive layer, a temperature sensitive layer and a PET substrate, and is characterized in that the two surfaces of the PET substrate are printed with interdigital electrodes, and the two interdigital electrodes are connected through a copper foil; the pressure sensitive layer covers one of the interdigital electrodes to form a pressure sensing circuit, and the temperature sensitive layer covers the other interdigital electrode to form a temperature sensing circuit. According to the invention, the pressure sensitive layer and the temperature sensitive layer are combined together through mutual cooperation of the PET substrate and the interdigital electrode to form a temperature sensing circuit and a pressure sensing circuit, so that simultaneous measurement of temperature and pressure is realized.

The invention discloses a large-depth hydrophone amplitude response measurement method based on deep sea environment noise field depth distribution, and the method comprises the steps: receiving a field measurement result of a noise spectrum level through matching a calibrated hydrophone or a standard hydrophone under low pressure, and carrying out the measurement of the amplitude response of a large-depth hydrophone based on a noise field modeling result of a marine environment parameter and a sound field model in a measurement period; the noise field full-depth distribution rule of the tested sea area is obtained, then the difference value between the noise field full-depth distribution rule and the actual measurement result of the hydrophone to be tested is calculated, the difference value is compensated to the amplitude response nominal value of the hydrophone to be tested, and the amplitude response of the hydrophone to be tested in the large-depth environment can be obtained. The invention provides a new way for obtaining the sensitivity of the hydrophone in a deep-sea large-depth environment.

The invention discloses a built-in sound field measuring device for high-voltage electrical equipment and a space optimization arrangement method, which comprise the design of an internal fiber bragg grating acoustic sensor and an external measuring loop of the high-voltage electrical equipment and the design of a space optimization arrangement scheme, and the device comprises the internal fiber bragg grating acoustic sensor and the external measuring loop. The detection frequency band of the fiber bragg grating acoustic sensor is designed according to the length of the grating region, and both ultrasound and audible sound are considered; polyimide is used as a coating material of the fiber bragg grating, so that high temperature resistance and insulation performance are better; the glass fiber reinforced plastic is used as a packaging material of the fiber bragg grating, so that the fiber bragg grating has higher mechanical strength and durability; a noise reduction device is designed according to the interference principle, and interference of optical noise in a measurement loop is suppressed; through the design of a transfer function and cut-off frequency, band-pass filtering is transplanted into a data collector, and the influence of high and low frequency interference during sound signal collection is inhibited. A space optimization arrangement scheme is designed in combination with various constraint factors, and the engineering application value of the measurement device is improved.

The invention discloses a building external lightning protection device detection system and method based on intelligent control, and relates to the technical field of building external lightning protection device detection.The building external lightning protection device detection system based on intelligent control comprises a lightning protection device detection control host and a remote control disconnection card; the lightning protection device detection control host is wirelessly connected with the remote control disconnection card. According to the building external lightning protection device detection system and method based on intelligent control, simultaneous measurement of the power frequency grounding resistance of the grounding device and the loop resistance of the down lead grounding device is realized based on an automatic control system, the accuracy of building lightning protection device detection is improved, and the detection efficiency is improved. The problems that in the prior art, lightning protection detection only detects the grounding resistance of the grounding device independently, and the electrical connection state of the grounding device, the down lead and the lightning receiving belt cannot be known are solved. And the operation state of the lightning protection device outside the building can be judged more comprehensively and accurately.

The invention discloses an integrated optical fiber sensor for measuring temperature strain at extreme high temperature, and the sensor comprises a crystal optical fiber which comprises a first optical fiber segment, a second optical fiber segment and a third optical fiber segment which are connected in sequence; the first optical fiber grating is formed in the first optical fiber section of the crystal optical fiber; the second optical fiber grating is formed in the second optical fiber section of the crystal optical fiber; wherein the diameters of the first optical fiber section and the third optical fiber section are the same, and the diameters of the second optical fiber section are different from those of the first optical fiber section and the second optical fiber section. The integrated optical fiber sensor can measure the temperature and the strain at the same time in an extremely high temperature environment. The invention further discloses a preparation method of the integrated optical fiber sensor.

The utility model provides an inclinometer with a water pressure and water level acquisition function, which relates to the technical field of hydraulic engineering and comprises a rod body, a first accommodating cavity for accommodating an acquisition mainboard is arranged in the rod body, and the acquisition mainboard is electrically connected with a communication cable mounted at the upper end of the rod body through a first through hole formed in the rod body; the switching circuit board is mounted at the top of the first accommodating cavity, an inclinometer is also welded on the switching circuit board, and the inclinometer is electrically connected with the acquisition mainboard; the pressure monitoring assembly is installed in a second containing cavity formed in the rod body, a second through hole is formed between the second containing cavity and the first containing cavity, the pressure monitoring assembly and the collecting mainboard are electrically connected through the second through hole, the space, except for the pressure monitoring assembly, of the second containing cavity is a water containing cavity, and a plurality of water inlet holes are formed in the water containing cavity; and the guide wheel structure is mounted on the outer surface of the rod body. The beneficial effects are that multiple parameters are measured at the same time, and the measurement efficiency and the data accuracy are improved; and the number of equipment and the purchase cost are reduced.

The invention discloses a static and dynamic friction detection system for a high-precision processing process of a semiconductor wafer. The static and dynamic friction detection system mainly comprises reciprocating friction wear detection equipment and a computer control system, when the shifting fork pushes the wafer to move in the X direction, an iron core in the displacement sensor is driven to slightly move through deformation of the force transmission beam, so that the dynamic friction force is determined according to a voltage value acquired by a computer control system, and in the process, static friction force can be effectively acquired by detecting strain gap deformation on the force transmission beam through the displacement sensor; meanwhile, when the wafer performs micro motion in the Y direction, the micro motion friction force is directly measured by the Y-direction strain type force sensor. The two sensors are combined, so that bidirectional force measurement can be realized, and meanwhile, wide friction force range test and same-system full-coverage measurement of dynamic and static friction force can be realized. The device is simple in structure, low in conversion and maintenance cost and suitable for large-scale application in the semiconductor processing and manufacturing industry and other material research and development mechanisms.

The invention provides a distributed remote testing system and method for aircraft testing. The distributed remote testing system comprises a testing platform; the test platform comprises a worker permission management module used for distributing work permissions to related personnel with different identities and models; the test data background management module is used for collecting, classifying, calling out and displaying the test data from the test equipment; the remote test interface building module is connected with all the modules and integrates and manages corresponding data information; constructing a human-computer interaction interface according to test requirements; and the information function management module is used for managing the use information of the test platform and the multi-source data of the model template. According to the invention, through the man-machine interaction interface and the video module, the situation information of the aircraft test site can be comprehensively obtained, for the site which is complex and severe in condition, has danger and needs to be unattended, workers do not need to be arranged to go to the site, and the safety guarantee of the workers in the test process is improved.

The invention relates to the field of heart rate signal detection, in particular to a non-contact heart rate signal detection method based on rPPG and a deep neural network, and the method comprises the steps: 1, obtaining color videos of faces of a plurality of target persons, and extracting the faces through a deep neural network model; 2, preprocessing the video data, and setting a facial region of interest (ROI); 3, a large amount of noise generated by the environment and shooting equipment is filtered out according to the minimum absorption rate of the blood to the red component; and 4, converting the time domain signal into a frequency domain signal by using a fast Fourier transform algorithm, further filtering the data, and taking the highest point of the small section of frequency as the heart rate. According to the method, the deep neural network technology is utilized, and the face tracking technology is combined, so that remote multi-target simultaneous heart rate acquisition can be realized by using a common camera, and the universality of rPPG is improved.

The invention discloses a multi-spiral resistor-capacitor element voltage transformer and a broadband transmission circuit, and relates to the field of voltage transformers, the multi-spiral resistor-capacitor element voltage transformer comprises a resistor-capacitor assembly and a resistor cylinder, the outer wall of the resistor cylinder is provided with a plurality of axially distributed spiral grooves, and a plurality of groups of resistor strings are embedded in the spiral grooves; elastic leads are arranged at two ends of the resistor string; the first flange and the second flange are fixedly connected with the two ends of the resistor cylinder. And a resistance-capacitance unit, the voltage transformation unit comprises a low-voltage arm and a resistor box; the screening unit comprises a far-end detection module and an acquisition module; and the acquisition module is connected in series with the far-end detection module, the high-pass filter B and the wave recording device. According to the utility model, the heat dissipation efficiency and the measurement efficiency of the resistor are improved by utilizing effective structure combination and material configuration, and the measurement frequency range of the mutual inductor is enhanced on the premise of ensuring the stability by utilizing a plurality of filtering devices with different levels, a preposed transformation circuit and a resistance-capacitance element.

The invention discloses a method for simultaneously measuring tissue optical parameters and blood flow information, which comprises the following steps of: obtaining an effective attenuation coefficient of a tissue based on speckle images at different light source-detector distances; and based on the effective attenuation coefficient and diffusion speckle contrast degrees at different exposure times and different light source-detector distances, establishing a target function for simultaneously solving multiple parameters. And a global minimum value of the target function is obtained based on an optimization solution algorithm, so that tissue optical parameters and blood flow information are obtained at the same time. The invention provides a new technical approach for comprehensively describing haemodynamics and metabolism characteristics of tissues.

The present application discloses a novel knee joint soft tissue tension gap measuring device, which relates to the technical field of total knee replacement instruments. The measuring device comprises a measuring device rod body, a pressure gauge is installed at one end of the measuring device rod body, and the measuring device rod body comprises an air-containing cavity in the middle; a distance measuring component is arranged at one end of the measuring device rod body away from the pressure gauge, and the distance measuring component comprises a fixed plate and a movable plate parallel to the axis of the measuring device rod body, the movable plate is slidably connected to the measuring device rod body and the sliding direction is toward or away from the fixed plate, and the distance measuring component also comprises an air bag arranged between the fixed plate and the movable plate and driving the movable plate to move by filling and deflation; a driving mechanism for exchanging the gas in the air-containing cavity and the air bag is arranged on the measuring device rod body, and the pressure gauge is used to detect the air pressure inside the air bag.

The utility model discloses a double-parameter optical fiber sensor based on a conical few-mode fiber grating, which belongs to the technical field of optical fiber sensors and comprises a broadband light source (1), a sensing structure (2) and a spectrum analyzer (3). The sensing structure (2) comprises a first single-mode fiber (201), a coreless fiber (202), a conical few-mode fiber grating (203) and a second single-mode fiber (204); more cladding modes are generated through mode field mismatch of the single-mode optical fiber and the coreless optical fiber and bending of a conical area, the double-parameter sensitivity of the sensor is improved, and two transmission characteristic peaks appear on the fiber bragg grating inscribed on the few-mode optical fiber by using different mode numbers in the few-mode optical fiber. The reliability and repeatability of the sensor are greatly improved, the corresponding double-parameter sensitivity can be respectively calculated by observing the position change of an interference spectrum and a transmission characteristic peak, and a sensitivity matrix is further established, so that the simultaneous measurement of double parameters is realized. The sensor has the characteristics of high sensitivity, strong reliability, strong anti-interference capability, small size, simplicity in manufacturing and the like.

The utility model discloses a sonar temperature sensor and an electric kettle realizing water level measurement based on sonar technology, the sonar temperature sensor is integrated with a sonar sensor and a temperature sensor, the sonar temperature sensor comprises a T-shaped sensor housing, a sonar transduction sheet and a temperature measurement circuit board, and the sonar transduction sheet and the temperature measurement circuit board are both arranged in the sensor housing; wherein the sonar transduction sheet is glued at the upper part in the sensor shell by using epoxy resin glue, and the temperature measurement circuit board is arranged on the inner wall of the sensor shell, so that the temperature measurement circuit board is respectively connected with the sensor shell and then is encapsulated by epoxy resin; the sensor shell is made of 304 stainless steel, and the sensor shell is directly used for signal receiving and transmitting of the sonar sensor and the temperature sensor so that the water level height and the water temperature can be conveniently detected. According to the utility model, the sonar temperature sensor is integrated, the installation is convenient, and the water level measurement accuracy can be improved through the sonar sensor.

The present invention discloses an ultra-high resolution bending temperature sensor based on a linear distribution of the core refractive index. The sensor comprises a core-doped single-mode optical fiber cladding, a Bragg grating, and a core-doped single-mode optical fiber core. The core-doped single-mode optical fiber core has a Bragg grating engraved inside the core-doped single-mode optical fiber core, and the core-doped single-mode optical fiber cladding is wrapped around the outside of the core-doped single-mode optical fiber core. The present invention prepares a core-doped single-mode optical fiber by melt-drawing SiO2, Al2O3, Y2O3, and P2O5 materials in a fiber drawing tower according to different mass ratios, and uses a femtosecond laser to write a Bragg grating at its core to prepare an optical fiber sensor, thereby realizing dual-parameter measurement of bending and temperature. At the same time, according to the reflection spectrum characteristics of bending and temperature, the simultaneous measurement of bending and temperature can be realized by decoupling. The sensor has the characteristics of compact structure, simple preparation, high sensitivity, etc.

The invention relates to a resonant sensor for parallel measurement of multiple physical quantities and a measurement method. The resonant sensor comprises a substrate layer and a device layer; the device layer comprises an internal mass block, a main vibration ring, a nested multilayer ring and an external anchoring ring, the internal mass block is fixed at the center of the substrate layer, and the distance between the internal mass block and the main vibration ring is 3-5 microns. The measurement method comprises the following steps: applying an excitation signal to the sensor; performing frequency modulation sensing analysis on vibration of the sensor in different modes to obtain values of different physical quantities to be measured, and if coupling exists, performing decoupling calculation. Compared with the prior art, the sensor has different sensitivities to different physical quantities in different modes, cross coupling can be avoided, and simultaneous measurement of a plurality of physical quantities is realized; an excitation signal with the working frequency being the sum of the resonant frequencies of the multiple modes is applied to the resonant sensor, frequency modulation sensing analysis and decoupling calculation are carried out on vibration in different modes, and multiple physical quantities can be obtained.

The invention relates to the technical field of mass spectrum analyzers, in particular to a mass spectrum ionization device and method for cooperatively monitoring dirt and carbon. The device comprises a high-pressure photochemical ionization cavity and a low-pressure photoelectron ionization cavity, an ion transmission module and an ion convergence reaction electrode group are arranged in the high-pressure photochemical ionization cavity; organic product ions are generated in the high-pressure photochemical ionization cavity and penetrate through a differential electrode to be transmitted into the low-pressure photoelectron ionization cavity; an electron transmission module, an ion convergence multi-pole rod group and an ion extraction electrode are arranged in the low-pressure photoelectron ionization cavity, the low-pressure photoelectron ionization cavity generates inorganic product ions, and the inorganic product ions and organic product ions penetrate through the ion extraction electrode and are transmitted to the mass analyzer for detection. Cascade connection of the two ion sources under different working air pressures is realized through vacuum difference, so that ionization detection of the two ionization sources can be obtained through single sample introduction, the analysis coverage of a mass spectrometer is greatly improved, and the application field is widened.

The invention provides a multiphase fluid metering device and method. The metering device comprises a drainage pipe, a rotational flow generating device, a drainage adjusting device and a drainage collecting device. The rotational flow generating device is configured to enable gas-liquid two-phase fluid in the drainage pipe to perform rotational flow by taking the axis of the drainage pipe as an axis; a fluid outlet of the drainage pipe is located in the side wall of the drainage pipe. The drainage adjusting device is configured to adjust the size of a fluid outlet of the drainage pipe; the leakage flow collecting device surrounds the leakage flow pipe; a first pressure sensor is arranged between the rotational flow generating device and the fluid outlet of the drainage pipe; and a second pressure sensor is arranged on the inner wall of the discharged flow collecting device. The metering device is small in size, compact in structure, wide in application range and capable of achieving simultaneous measurement of multi-phase fluid split-phase flow and gas and liquid phase mass holdup.

The invention discloses an experimental animal overweight rotating device which comprises a base, a motor, a rotating table, a cage unit, a signal concentrator and a computer, the motor is installed on the base, and the rotating table is installed on an output shaft of the motor; the signal concentrator is mounted on the rotary table and is in wireless communication with the computer through the wireless communication module; a plurality of cage units are mounted on the rotary table in the circumferential direction, so that the experimental animals in each cage unit are in an overweight state during rotation; each cage unit is provided with a first wireless sensor, and each cage unit monitors physiological data of an experimental animal through the first wireless sensor; and each cage unit is connected with the signal concentrator through a signal line A so as to transmit physiological data of the experimental animal to the signal concentrator. Wireless data transmission is carried out through the wireless sensor, wired data transmission is carried out through the signal line, wireless data transmission is carried out through the wireless communication module, and simultaneous measurement of physiological data of experimental animals in multiple cages is achieved.

The application relates to a nuclear power plant neutron energy spectrum and direction measuring device, system and method, which comprises a packaging shell, the packaging shell comprises an upper shell and a lower shell, a detection module is arranged between the upper shell and the lower shell, the detection module comprises a support and a plurality of plastic scintillators, the support is used for fixing and spacing the plurality of plastic scintillators to shield neutrons, a first signal acquisition module is arranged between the upper shell and the detection module and is used for acquiring a first group of scintillation light signals generated by the plurality of plastic scintillators close to one end of the upper shell, and a second signal acquisition module is arranged between the detection module and the lower shell and is used for acquiring a second group of scintillation light signals generated by the plurality of plastic scintillators close to one end of the lower shell. The application can realize simultaneous measurement of neutron energy spectrum and direction, has the advantages of lightness, radiation resistance and real-time monitoring, and is suitable for nuclear power neutron energy spectrum and direction measurement.

The present invention belongs to the field of flow field testing technology, and specifically relates to a probe for measuring all parameters of a subsonic three-dimensional steady-state flow field, including a probe head, a temperature sensor, a convection heat exchange groove, an insulating seal, five pressure measuring holes, a pressure pipe channel, a probe support rod, a pressure pipe and a temperature sensor cable. The probe head is cylindrical, and the top of the cylinder has a concave ball socket structure perpendicular to the center line of the cylinder. The inner wall of the ball socket is provided with a pressure measuring middle hole, a pressure measuring upper hole, a pressure measuring lower hole, a pressure measuring left hole and a pressure measuring right hole that are not connected to each other, and a cross-shaped convection heat exchange groove is provided on the back of the ball socket. The temperature sensor is placed in the convection heat exchange groove and faces the center line of the pressure measuring middle hole. The probe of the present invention can simultaneously measure the total temperature, total pressure, static temperature, static pressure, Mach number, deflection angle, pitch angle, speed, density and other parameters of a subsonic three-dimensional steady-state flow field, and has the characteristics of small size, long life, wide airflow insensitive angle, high reliability, high spatial resolution and high measurement accuracy.

The invention relates to a double-beta plastic scintillator detector based on SiPM readout. The double-beta plastic scintillator detector comprises two hollow plastic scintillators, a SiPM array, a corresponding signal readout circuit, an inflation pipeline, a valve, a reflecting film and a light shielding layer. The two hollow plastic scintillators are stacked away from light; the SiPM array is coupled to the side surface of the hollow plastic scintillator, and the signal-to-noise ratio of the detector is improved by using the SiPM array partition according with the noise reduction technology; the two hollow plastic scintillators pasted with the reflecting films and the light shielding layers are packaged in a stainless steel shell to form a dual-channel beta plastic scintillator detector so as to realize synchronous high-sensitivity measurement of different radioactive gases. According to the invention, the two hollow plastic scintillators are packaged into the double-beta detector, so that synchronous high-sensitivity measurement of different radioactive gases can be realized. The SiPM is assembled on the side wall of the scintillator, and two oppositely arranged gamma detectors can be adopted for measurement, so that the gamma ray detection efficiency is improved, and the detection sensitivity is further improved.

The invention belongs to the field of laser measurement, and particularly relates to a system and a method for generating an optical frequency comb from visible light to middle-infrared band. The system for generating the optical frequency comb from the visible light to the middle infrared band comprises a full polarization maintaining optical fiber frequency comb module and an optical comb spectrum expansion module, the full polarization-maintaining fiber frequency comb module is used for generating coherent wide-spectrum laser with uniform frequency and spectral line intervals; the optical comb spectrum expansion module is used for carrying out spectrum expansion on the frequency-locked wide-spectrum coherent light source to realize output from visible light to an intermediate infrared section optical frequency comb; the optical comb spectrum expansion module comprises an amplifier B, a 90: 10 beam splitter, an all-polarization-maintaining compressed optical fiber B, an all-polarization-maintaining compressed optical fiber C, a 1100-2350 nm super-continuum spectrum unit and a 500-1100 nm super-continuum spectrum unit; and by opening and closing a circuit of the semiconductor laser diode unit C, the output and closing of laser from near-infrared to middle-infrared band of 1100-2350 nm are realized.

The invention relates to a system for measuring the solidification temperature of molten steel of a continuous casting tundish at low cost. The measuring system comprises an s7-200smart host, a display screen, an analog quantity output module, a temperature measuring module, a relay, a tricolor lamp, an audible and visual alarm and a direct-current power supply, an external 220VAC power supply is connected to the DC power supply, the DC power supply outputs 24VDC to supply power to the s7-200smart host, the display screen, the analog quantity output module and the temperature measurement module, the s7-200smart host is connected with the temperature measurement module through a Siemens 200 series PLC module special line, and the analog quantity output module is connected with the temperature measurement module through a Siemens 200 series PLC module special line; the system is simple in structure, low in cost, capable of meeting actual on-site requirements in function and particularly suitable for the technological process with the large difference between the actual solidification temperature of the continuous casting tundish molten steel and the theoretical calculation solidification temperature.

The invention discloses a vegetation composite parameter synchronous monitoring remote sensing imaging system. Incident parallel light is imaged through an off-axis three-mirror telescopic system, and is divided into a front view field and a rear view field after passing through a view field scanning assembly and a view field division element; wherein one view field is imaged on a detector focal plane of the first detector focal plane circuit assembly after passing through the relay optical system and the low-distortion high-dispersion light splitting system; the other view field is imaged on the detector focal plane of the second detector focal plane circuit assembly after passing through the low-distortion high-resolution light splitting system; the integrated electronics assembly drives the first detector focal plane circuit assembly and the second detector focal plane circuit assembly to carry out photoelectric signal conversion, hyperspectral and hyper-spectral imaging detection is completed, and vegetation composite parameter synchronous monitoring remote sensing imaging is achieved. According to the system, the problem that the monitoring precision of the vegetation health state and the carbon sink capacity is limited by multiple parameters and cannot be synchronously detected due to the fact that key elements of existing land surface vegetation parameter detection load measurement are not synchronous is solved.

The invention discloses a bearing temperature-vibration measurement system based on PT symmetric LC sensors, and relates to the technical field of bearing fault detection. The system comprises a reading circuit and an LC sensor, the reading circuit comprises a reading coil, the reading coil is connected with a lumped element capacitor and a reading circuit resistor, the LC sensor comprises a planar spiral inductor and a parallel plate capacitor, the planar spiral inductor is connected with the parallel plate capacitor in series, and the reading circuit resistor is connected with the planar spiral inductor. A coupling distance d is kept between the reading coil and the planar spiral inductor, the LC sensor is arranged on a retainer of the bearing, the temperature change in the bearing is sensed through the parallel plate capacitor, and the vibration change of the bearing is sensed through the change of the coupling distance d. The system can realize simultaneous detection of the temperature and vibration of the bearing without using a battery.

The application discloses a dielectric constant microwave sensor with a microstrip coupling line structure and particularly relates to the technical field of microwave sensing, and comprises a metal transmission line on an upper layer, a dielectric substrate on a middle layer and a grounded metal plate on a bottom layer; a signal path of the upper layer structure of the microwave sensor is arranged between the first port and the second port, and the signal path is composed of at least one transmission line, four coupling lines and two metalized through holes. The microstrip coupling line structure adopted in the application is sensitive to changes in the dielectric constant of external materials, has the advantages of small size, easy processing, low cost, high precision and the like, different sizes of the microstrip coupling line provide two measurement working frequency bands, and the microwave sensor can be effectively applied to solid dielectric constant measurement work.