75 results about "Single probe" patented technology

The invention belongs to a testing and processing method, and provides a single-probe non-contact dielectric material testing and processing integrated system and a single-probe non-contact dielectric material testing and processing integrated method in order to solve the technical problems of poor real-time performance and controllability and low production efficiency of the existing dielectric material testing and processing technology. Comprising a controllable objective table, a resonant cavity single probe assembly, a programmable multi-way switch and a control unit, a single epitaxial microwave resonant cavity probe is adopted as a core component, and rapid switching and regulation of the resonant cavity single probe assembly, a vector network analyzer and a program control microwave signal generation and regulation device are realized through the programmable multi-way switch. By means of the testing and processing integrated system, non-contact type dielectric constant dynamic measurement and microwave processing can be alternately completed.

The invention relates to the technical field of soil physical parameter in-situ measurement, and discloses a soil layer natural water content portable intelligent measuring instrument based on multi-source sensing fusion, which comprises a composite probe assembly and an intelligent measurement and control host which are physically connected, the composite probe assembly is configured to be inserted into a soil layer to be tested to construct a multi-physical field test environment, and an electrical transceiving unit and an acoustic transceiving unit are integrated in the composite probe assembly. By constructing a cross physical field excitation and multiphase parameter collaborative decoupling mechanism, a multidimensional dynamic correlation model is established by using the thermosensitive drift characteristic of the sound velocity of a mixed medium during thermal disturbance and the transient step response of a dielectric constant under an acoustic radiation force field; the problems that the coupling influence of the water content and the volume weight cannot be distinguished and the conductivity of bound water and the conductivity of free water are difficult to separate in a traditional means are effectively solved, and four independent physical quantities including the volumetric water content, the in-situ dry volume weight, the bound water content and the actual conductivity of pore water are synchronously inverted through a single probe. And the decoupling precision of the equipment on complex multi-phase soil medium parameters is improved.

The invention discloses a probe card flatness detection method, equipment and a medium, relates to the technical field of semiconductor testing, and solves the problems that the current probe card flatness detection is easily influenced by factors such as illumination conditions, so that the detection difficulty of a single probe is high, and the detection of a probe card is inaccurate. The method comprises the following steps: constructing a position length matrix of the probe through the length of the optical probe and the coordinates of the probe, and then judging the corresponding qualification condition of the first flatness of the probe card according to the position length matrix; based on the test results of the probe card and the first test film and the test results of the probe card and the second test film, the corresponding qualification condition of the second flatness of the probe card is judged; the actual impedance value of the probe is detected, and the corresponding qualification condition of the third flatness of the probe card is judged; the thermal deformation of the probe is calculated, whether the overall flatness of the probe card is qualified or not is judged based on the thermal deformation, and accurate detection of the flatness of the probe card is achieved by combining multiple detection methods.

The invention belongs to the field of rotating machinery blade vibration monitoring and feature extraction, and provides a single-probe rotating blade vibration parameter identification method based on an ESPRIT algorithm. Blade tip timing vibration signals and time signals of the blade are collected under the gas excitation working condition; constructing two groups of different dual-channel blade tip timing vibration sequences Series1 and Series2 by combining the sequence of the blade passing through the probe, and respectively calibrating the blade rotation angle of each sequence passing through the probe; frequency information identification is carried out on the constructed two groups of dual-channel blade tip timing vibration sequences to obtain estimated frequency information; and blade resonance frequency information calculation is carried out in combination with a frequency aliasing relation, vibration signal amplitude information solving is carried out in combination with a signal characteristic value, and blade vibration parameter identification is realized. According to the method, one probe is installed on the machine shell to complete identification of blade vibration information, the monitoring cost problem and the probe layout problem caused by the adoption of multiple probes are avoided, and the method has important practical application value.

The invention relates to the technical field of semiconductor probe performance testing, in particular to a probe performance testing method, which comprises the following steps of: calculating resistance consistency and a signal transmission fidelity ratio of a probe interference working condition through a contact simulation test and a signal transmission simulation test, and performing single-probe simulation verification; for double probes formed by qualified single probes, calculating contact pressure interference variables and electromagnetic crosstalk interference variables, and carrying out cooperative interference judgment; extracting historical probe false data, and constructing an interference false risk model and a non-interference false risk model; grouping the double probes according to interference degrees, and substituting the grouped double probes into corresponding models to calculate risk assessment values; determining an adjustment direction and an adjustment scheme for the high-risk group, and calculating the average attenuation rate of the double probes after adjustment; and after the attenuation rate is verified to reach the standard, the probe group is determined as a qualified performance test probe group, so that the accuracy, the stability and the anti-interference capability of semiconductor probe performance detection are effectively improved.

1. The name of the design product: double track flaw detector single probe wheel alignment structure. 2. The use of the design product: for ultrasonic flaw detection of steel rails in railway infrastructure. 3. The design features of the design product: in the frame structure. 4. The picture or photo that best indicates the design features: perspective view.

The utility model relates to the technical field of semiconductor chips, in particular to a semiconductor chip test probe, which comprises an installation frame, a probe rod is inserted in an inner cavity of the installation frame, an installation sleeve is fixedly sleeved on the outer surface of the probe rod, the probe rod comprises a rod main body, an installation groove is arranged at the bottom of the rod main body, and the installation sleeve is fixedly sleeved on the installation groove. Limiting vertical grooves are formed in the left side and the right side of the bottom of an inner cavity of the mounting groove, connecting sliding grooves are formed in the tops of the limiting vertical grooves, positioning sliding grooves are formed in the inner sides of the bottoms of the connecting sliding grooves, and supporting springs are fixedly connected to the top of an inner cavity of the mounting groove. When the probe rod is damaged, the limiting clamping block is pushed inwards to move out of the limiting opening, the mounting frame is pulled forwards to separate the positioning insertion plate from the interior of the positioning insertion shell, the damaged probe rod is taken down and replaced, the positioning insertion plate is inserted into the positioning insertion shell and pushed forcibly, and the limiting clamping block is clamped into the limiting opening for positioning. Therefore, the single probe rod can be conveniently disassembled, assembled and replaced, and the replacement efficiency is improved.

The application discloses a double-side D-type PCF-SPR three-parameter sensor and a decoupling measurement method thereof, wherein a PCF of the sensor comprises a base material, two parallel D-type plane structures are formed by polishing the upper and lower sides of the base material, a gold film is coated on the upper surface of the upper D-type plane structure, then a methane sensitive material is coated as a methane concentration sensing channel, a gold film is coated on the lower surface of the lower D-type plane structure, then a temperature sensitive material is coated as a temperature sensing channel; a PCF cladding of the sensor comprises two layers of air holes, a gold film is deposited on the inner wall surface of the outer layer air hole, and a humidity sensitive material is coated on the inner side of the gold film as a humidity sensing channel. The application realizes the spatial partition integration of the methane, temperature and relative humidity three channels by constructing the upper and lower double-side D-type polished planes on the same photonic crystal fiber and combining the third coupling interface in the outer layer air hole, so that the three parameters can be synchronously acquired in a single probe, and the system integration degree and the on-site deployment convenience are remarkably improved.

The invention discloses a steel rail welding seam ultrasonic flaw detection method and device. The method comprises a TOFD detection method, a single-probe reflection detection method and a double-probe K-type detection method. A plurality of pairs of rail side flaw detection probes and different combinations of zero-degree rail surface probes and inclined rail surface probes are arranged on two sides of the inner and outer side surfaces of a steel rail from bottom to top by taking a welding seam as a center, and a TOFD detection method, a single-probe reflection detection method and a double-probe K-type detection method are adopted, so that all-directional and multi-angle detection of a steel rail welding seam area is realized. By means of the method, longitudinal defects, transverse defects and defects at different depth positions in the welding seam can be effectively detected, the leakage detection risk is greatly reduced, and the comprehensiveness and reliability of steel rail welding seam quality detection are ensured.

The invention discloses an online magnetic field measurement system and method of a linear fusion device, and relates to the technical field of magnetic field measurement of nuclear facilities. The on-line magnetic field measurement system of the linear fusion device comprises a circular track of which the circle center is aligned with the central axis of the magnetic field of the linear fusion device, the circular track is provided with a circular motion part, the circular motion part is connected with a transverse track, the transverse track is provided with a transverse motion part, and the transverse motion part is connected with a longitudinal track. The longitudinal track is provided with a longitudinal moving part which is connected with a magnetic field detector. The circular track and the circular motion piece are matched to enable the magnetic field detector to do circular motion, the transverse track and the transverse motion piece are matched to enable the magnetic field detector to do transverse motion, and the longitudinal track and the longitudinal motion piece are matched to enable the magnetic field detector to move from the outer side to the center in the direction perpendicular to the magnetic field axis of the linear fusion device. Magnetic field measurement of a single probe at any position in the space can be realized, the measurement precision is high, the operability is good, and the measurement efficiency is improved.

A measuring device detects buried structures in a sample, such as voids or other underlying structures, based on an instantaneous signal difference determined from a single signal acquisition. The single signal acquisition is produced using a series of primary pump pulses and series of secondary pump pulses, which are intensity modulated and opposite in phase. The primary pump pulses and secondary pump pulses are combined to form a pump beam that is incident on the sample causing transient perturbations in material in the sample. Probe pulses are likewise incident on the sample and each probe pulse is modulated by the combined transient perturbations caused by a preceding primary pump pulse and a preceding secondary pump pulse. A series of reflected probe pulses are detected and demodulated to determine an instantaneous signal difference produced in response to the combined primary and secondary pump pulses, from which the buried structure is detected.

The invention discloses a fluorescence sensing system based on machine learning and carbon dots and application thereof, and belongs to the technical field of analytical chemistry, the fluorescence sensing system comprises a sensing array unit, a data acquisition unit and a data processing unit; the sensing array unit comprises more than three types of sensing units, and the more than three types of sensing units are obtained by respectively placing a single type of fluorescent probe in different chemical environment media; the data acquisition unit is used for acquiring a fluorescence signal of each sensing unit to form a data matrix; and the data processing unit is internally provided with a machine learning model and is used for processing the data matrix and outputting a recognition result of the metal ions. The invention provides a technical method of sensor array construction based on a single probe, signal diversity is created by regulating and controlling an external environment instead of an internal structure of the probe, the technical method is a brand-new technical means with remarkable economical efficiency and simplicity, and the technical method is essentially different from the prior art relying on synthesis of multiple probes.

A fiber-optic transmission probe system for, for example, dissolution testing, includes a single probe, a single probe tip, and a number of pathlength adjusters of different lengths. The transmission probe system is usable to assemble different probe assemblies having different, desired optical pathlengths, where each probe assembly has either no pathlength adjuster or a different one of the pathlength adjusters. The probe system avoids the prior-art requirements of having either (i) multiple probes of different, fixed optical pathlengths or (ii) a probe with multiple probe tips of different, fixed lengths to achieve the different, desired optical pathlengths.

The invention provides a probe deflection correction method and device for a trunk liquid flow heat pulse probe. The method comprises the following steps: determining xylem volume heat capacity through tree water content and dry material density obtained through real-time measurement; under the condition that it is judged that the liquid flow speed is within the preset speed interval, in the time range from the heat pulse closing moment to the first preset moment, nonlinear fitting is conducted on the change rule of the temperature difference of the upstream probe along with time and the change rule of the temperature difference of the downstream probe along with time, and the heat conductivity is obtained; dividing the thermal conductivity by the xylem volume thermal capacity to obtain a thermal diffusion coefficient; on the basis of a heat convection conduction equation, calculating according to the heat conductivity and the heat diffusion coefficient to obtain an upstream probe actual distance and a downstream probe actual distance; compared with an interval correction method based on a single probe benchmark in the prior art which is unstable in different deflection scenes, solution of the actual interval of the probes is not affected by the deflection scenes, stability of correction is guaranteed, and accuracy is high.

Multi-band remotely configurable tuning probes for slide screw impedance tuners allow instantaneous larger frequency coverage beyond the capacity of existing tuning probes using the single horizontal and vertical axis mechanism of a prior art single probe, single band tuner. This is done by carving multiple slugs of different length and frequency coverage as segments of a disc-shaped revolving slab, which rotates inside the legs of a captive unit and locks at distinct angles. The captive unit is attached to the vertical control mechanism of the tuner and rotation is ensured using multiple traverse lateral studs on the disc unit and a set of vertical studs on the slabline close to the idle port of the tuner. An automated procedure ensures remote switching between tuning slugs. Calibration and tuning is as in prior art single probe tuners.

The application discloses a near-infrared carbon monoxide fluorescent probe and a preparation method and application thereof, wherein the probe has a structure shown in formula I; a fluorescent unit of the probe is constructed by connecting 2-pyridine acetonitrile and hydroxyl xanthene derivative through an olefin bond; the probe itself has weak fluorescence and can release strong near-infrared fluorescence signals after responding to carbon monoxide. The probe has the advantages of rapid response, high sensitivity and good selectivity. The probe can sensitively detect expression changes of endogenous carbon monoxide levels, realize direct diagnosis of pathological degrees of drug-induced liver injury, and realize visual evaluation of liver-protecting effects of active components of traditional Chinese medicines. The application integrates disease diagnosis and drug efficacy evaluation functions in a single probe system, and provides an efficient and intuitive molecular imaging tool for early warning of drug-induced liver injury and screening of liver-protecting components of traditional Chinese medicines.

Triple band remotely configurable tuning probes for slide screw impedance tuners allow instantaneous larger frequency coverage beyond the capacity of existing tuning probes using the single horizontal and vertical axis mechanism of a prior art single probe, single band tuner. This is done by combining two types of tuning slug, a core slug and a saddle slug into a configurable tuning probe assembly mounted in the same mobile tuner carriage and controlled using the same single vertical axis mechanism with the help of two ridges on the core slug and a permanently mounted slug control fork. To avoid spurious resonance phenomena the tuning slugs are controlled, driven, and locked vertically sliding on each other, and guided appropriately allowing smooth, uninhibited vertical movement of the metallic bodies.

The invention relates to the technical field of biological feature recognition, and discloses a multi-mode biological feature recognition and matching system based on single-probe ultrasound. The system comprises a biological characteristic acquisition module, a cluster distribution analysis module, a biological characteristic processing transmission module, a distributed storage management module and a biological characteristic matching module which are connected in sequence. Ultrasonic images, blood vessel modes and blood flow signal data are synchronously collected through an integrated single probe, and the resource state of edge nodes is monitored in real time. A dynamic weight distribution algorithm is adopted, an optimal mapping relation is established according to data characteristics and node load conditions, and intelligent task scheduling is achieved. And after self-adaptive preprocessing is carried out on the acquired data, distributed architecture storage management is adopted, and finally multi-modal feature extraction and similarity calculation are completed. The system effectively improves the accuracy of biological feature recognition and the utilization efficiency of system resources.

This invention relates to the field of ultrasensitive magnetic measurement technology based on quantum sensing, and in particular to a single-beam zero-magnetic-field dual-axis vector magnetometer and its usage and applications. This invention employs a single probe laser beam to simultaneously perform pumping and detection functions, and innovatively combines the tensor-vector polar moment conversion (AOC) effect, magnetic field modulation, and large-amplitude modulation of the optical frequency. This significantly reduces the resonant linewidth of the magnetometer while suppressing photon shot noise and detector electronic noise, and achieves dual-axis magnetic field measurement in a zero-magnetic environment. In laboratory desktop experiments, a sensitivity of level 10 can be achieved.

The invention discloses a method, a device, equipment, a medium and a product for detecting the thickness of a heat treatment hardened layer, and relates to the technical field of engineering nondestructive detection.The method comprises the steps that the distance between probes is gradually increased, the waveform characteristic of a reflected signal is monitored, and a corresponding probe distance interval is determined on the basis of distortion of the reflected signal; performing dichotomy refinement on the probe spacing interval to obtain a probe spacing interval mean value; obtaining a first peak position time of the straight-through signal and a second peak position time of the reflected signal when the probe spacing is in the mean value of the probe spacing interval; determining the thickness of the heat treatment hardened layer based on the specific angle, the first peak position time, the second peak position time, the probe spacing interval mean value and the sound velocity; a one-transmitting and one-receiving double-probe arrangement mode is combined with an ultrasonic time-of-flight diffraction method, the thickness is calculated by analyzing the acoustic path distance difference between a surface straight-through signal and a reflection signal, the technical limitation of a traditional single probe is eliminated, and the application range of nondestructive testing is widened.

A capacitive micro-machined ultrasonic transducer, CMUT, device in which integrated probe circuitry includes both the ultrasound transmission and reception circuitry and a DC-DC converter for generating a bias voltage for the CMUT cell. The high voltage pulses of a pulser circuit and a high voltage DC bias voltage are both generated by a single probe circuit, which is local to the CMUT cell.

This invention provides a single-probe thickness measurement method and apparatus for magnetically conductive materials. The method includes: acquiring a first induced current of the single probe under no-load conditions and a second induced current when in contact with the magnetically conductive material, wherein the single probe includes an iron core and a coil wound on the iron core; converting the first induced current and the second induced current into a first time parameter and a second time parameter respectively using a voltage comparison-based current-time conversion method; and calculating the thickness value of the magnetically conductive material based on the time parameters and a pre-established time parameter-thickness mapping relationship. This invention achieves automated measurement of the thickness of magnetically conductive materials without manual intervention, effectively reducing labor costs, improving the efficiency and detection accuracy of automated production lines, and solving the problem that traditional single-probe metal double-sheet detectors can only distinguish between single and double sheets but cannot measure the specific thickness.

Tri-state triple band remotely configurable tuning probes for slide screw impedance tuners allow instantaneous larger frequency coverage beyond the capacity of existing tuning probes using the single horizontal and vertical axis mechanism of a prior art single probe, single band tuner. This is done by combining two tuning slugs, a master slug and a slave slug into a configurable tuning probe assembly mounted in the same mobile tuner carriage and controlled using a single vertical axis mechanism. To avoid spurious resonance phenomena the tuning slugs are controlled, driven, and locked vertically sliding on each other, and guided appropriately allowing smooth, uninhibited vertical movement of the metallic bodies.

The invention discloses a method for identifying flaw detection sensitivity change by ultrasonic waves through interface waves, and belongs to the technical field of nondestructive detection.The method comprises the steps that firstly, the initial reference height of primary interface waves is set, and the real-time height of the primary interface waves of multiple channels is collected in real time in the flaw detection process; and calculating the sensitivity attenuation of each channel by using a decibel difference algorithm. Furthermore, through statistical analysis of the arithmetic mean value and the standard deviation of the multichannel data, the attenuation amount and a preset threshold value are subjected to logic comparison: when the mean value exceeds the standard and the consistency is good, it is judged that systematic coupling deterioration occurs, and overall cleaning is triggered; when the consistency is poor due to attenuation of a specific channel, a local fault is judged, and an abnormal probe is positioned. According to the invention, sensitivity monitoring is converted from off-line verification to on-line real-time monitoring, the coupling water quality problem and the single probe fault can be accurately distinguished, the risk of batch leak detection is effectively avoided, and the quality control level and the production efficiency of flaw detection operation are improved.

A system and method of combining OCD and light reflection for improving OCD performance in measurement of optical properties of a target sample. The system comprises: (a) a single-channel OCD setup comprising a single probe beam configured in a normal / oblique direction to the target sample, or a multi-channel OCD setup having multiple probe beams configured in normal and oblique directions to the target sample for measuring optical properties of the target sample, (b) at least one laser source for generating at least one laser beam, (c) at least one modulation device to convert the at least one laser beam into at least one alternating modulated laser beam; and (d) at least one spectrometer for measuring spectral components of the at least one laser beam reflected from the target sample; wherein the at least one alternating modulated laser beam alternately modulates spectral reflectance of the target sample.

The invention belongs to the technical field of preparation of high-sensitivity fluorescent probes, and provides a preparation method of a cucurbit [7] urea-phenothiazine derivative fluorescent probe and application of the cucurbit [7] urea-phenothiazine derivative fluorescent probe in hypochlorite detection, and the preparation method comprises the following steps: mixing a cucurbit [7] urea solution, a phenothiazine derivative solution and water to obtain a fluorescent probe solution, namely the fluorescent probe. Compared with traditional instrumental analysis and detection methods such as high performance liquid chromatography and gas chromatography, the method has the advantages that sample treatment is simple, detection is convenient, real-time detection can be achieved, and the detection cost is greatly reduced. The probe can detect hypochlorite in a solution, the detection limit can reach 8.5 * 10 <-8 > mol / L, highly selective detection of hypochlorite by a single probe can be achieved, and the beneficial effects of rapid determination and real-time detection can be achieved.

The invention discloses a pipeline partition scanning detection method and system based on an ultrasonic phased array, which are applied to pipeline detection, and are characterized in that the circumferential direction of a pipeline is equally divided into n fan-shaped scanning areas by 360 degrees based on the scanning angle of an ultrasonic phased array probe; probes are arranged in the circumferential direction of the pipeline at equal intervals, and each probe corresponds to one scanning range; staggered placement can be selected to improve the aperture size of a single probe; and the probe detects the detection area according to a fan-shaped scanning mode, and judges the condition of the pipeline according to echo information. 360-degree scanning in the circumferential direction of the pipeline can be achieved on the premise that no external force is used; a series of problems caused by the use of a large number of array elements and the integrated design of the array are avoided; and a small number of probes are used for achieving full coverage of the pipeline in the circumferential direction, control is easy, the fault rate is low, and the fault probe can be directly replaced when a fault occurs.

The invention is applicable to the technical field of microbiomechanics, and provides a bacterial probe as well as a preparation method and application thereof, microspheres are placed in a bacterial adhesion enhancing modifier for surface modification for not less than 4 hours; adding a bacterial suspension into the microspheres subjected to surface modification, carrying out cultivation and growth treatment so as to enable bacteria to uniformly grow on the surfaces of the microspheres, and carrying out centrifugal cleaning, so as to obtain bacterial microspheres; and oscillating and dispersing the bacterial microspheres, and contacting the bacterial microspheres with the probe cantilever beam of the atomic force microscope adhered with the glue, so that the bacterial microspheres are adhered to the probe cantilever beam of the atomic force microscope to obtain the bacterial probe. The bacterial probe with low pollution, high activity and strong adhesion is prepared by an innovative two-step method, and the problems of low survival rate, uncontrollable position, complex operation, cantilever pollution and the like in the preparation of the existing AFM bacterial probe are successfully solved. The bacterial probe prepared by the invention is good in wrapping property, has high biological activity and test stability, can be prepared in batches, and can remarkably prolong the test time and the repeated utilization rate of a single probe.

The application discloses a heat treatment hardened layer thickness detection method, device, equipment, medium and product, relates to the engineering nondestructive testing technical field, and the method comprises the following steps: gradually increasing the probe spacing, and monitoring the waveform characteristics of the reflected signal, taking the distortion of the reflected signal as the basis, determining the corresponding probe spacing interval; the probe spacing interval is refined by dichotomy to obtain the probe spacing interval mean; the first peak position time of the direct signal and the second peak position time of the reflected signal are obtained when the probe spacing is in the probe spacing interval mean; the heat treatment hardened layer thickness is determined based on a specific angle, the first peak position time, the second peak position time, the probe spacing interval mean and the sound velocity; the double-probe arrangement mode of one transmitting and one receiving is combined with the ultrasonic diffraction time difference method, the sound path difference between the surface direct signal and the reflected signal is analyzed to calculate the thickness, the technical limitation of the traditional single probe is got rid of, and the application range of the nondestructive testing is improved.

This invention relates to the field of photoelectric probes, specifically a multi-point photoelectric probe for cervical cancer screening instruments. It includes a probe body and a detector handle. The probe body adopts a slender, hollow tubular structure, serving as the support and wiring main body for the probe, and internally housing multiple independent optical fibers. An end-face detection section, located at the very front of the probe, is elliptical in shape and is a dedicated cervical tissue detection component. A ring-shaped detection section, fitted onto the ring-shaped side of the probe body behind the end-face detection section, is a dedicated vaginal wall tissue detection component. An adjustment section is used to adjust the orientation of the end-face detection section, expanding the detection range and ensuring that all areas of the cervix can be effectively detected. The front end of the probe body is fixedly connected to the end-face detection head, and the rear end is detachably connected to the detector handle. This multi-point photoelectric probe for cervical cancer screening instruments, through its separate dedicated design of the end-face and ring-shaped detection heads, achieves for the first time simultaneous screening of both the cervix and vaginal wall areas with a single probe insertion.