38 results about "Single probe" patented technology

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 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 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.

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.

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.

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.

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 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.

The invention provides a coumarin-based fluorescent probe for sequential detection as well as a preparation method and application thereof, and relates to the technical field of chemical analysis, a diphenylamine electron-donating group and a pyridine hydrazide coordination recognition unit are introduced into a coumarin fluorescent skeleton, and a molecular system with a D-pi-A conjugated structure is constructed, so that the coumarin-based fluorescent probe for sequential detection is obtained. According to the present invention, the copper ions are introduced into the probe, such that the probe and the copper ions can produce the coordination effect, and the fluorescence recovery is achieved through the competitive coordination in the presence of the biological mercaptan so as to form the on-off-re-on sequential fluorescence response mode, such that the two analytes can be sequentially detected in the single probe system, the defect that most fluorescent probes in the prior art can only detect a single target object is overcome.

The application discloses a PTPRQ gene mutation site related to non-syndrome deafness, the mutation site is a novel pathogenic mutation site on a human PTPRQ gene, and is one or more combinations selected from c.4723C>T, c.6040C>T, c.1811T>C, c.5687-6del and c.6560C>T. A specific probe set for detecting a PTPRQ gene mutation, the probe set is a double-stranded DNA probe, is designed according to a PTPRQ gene 45-exon sequence of a transcript NM_001145026 and a flanking region of each 5' end and 3' end of each exon with an extension of 50 bp, contains 169 probes in total, the length of a single probe is 120 bp, a shingled design is adopted, there is an overlapping region between adjacent probes, and the probe density is dynamically adjusted according to the GC content of a target sequence. A detection method of a PTPRQ gene mutation, with peripheral blood or a blood sheet of a to-be-tested person as a sample, extracting genomic DNA, performing targeted capture enrichment by using the specific probe set, combining high-throughput sequencing with standardized bioinformatics analysis, and judging whether the PTPRQ gene mutation exists in the to-be-tested sample.

The application discloses a kind of orthogonal strip CZT detector module and method for particle therapy range and dose monitoring, orthogonal strip CZT detector module includes orthogonal strip CZT detector, signal front-end electronics circuit, channel compression circuit;Anode electrode and cathode electrode in orthogonal strip CZT detector are long strip and mutually orthogonal setting;Channel compression circuit reduces the channel number of signal output.According to user demand, the present application can realize the switching of single probe measurement mode and coincidence measurement mode, the method for monitoring the secondary particle intensity generated by the interaction of primary beam particles and human tissue in particle beam therapy field, the position and dose of particle primary beam irradiation target body or human body are calculated by secondary particle counting rule, so as to realize the monitoring of particle beam range and dose, the present application reduces the channel number of readout electronics and reduces the complexity of data acquisition, modular design meets the characteristics of economy and miniaturization.

The application discloses a trace nucleic acid multiplex detection method based on thermodynamic regulation and ultra-short amplicon design. The method is characterized in that the same probe binding region is designed on multiple primers, so that the same probe is targeted, thereby realizing the capture of multiple templates by a single probe. Meanwhile, the template binding region of the primer is designed differently according to specific detection sites to ensure site specificity. Through the above strategy, the problems of insufficient sensitivity, efficiency deviation caused by multiplex amplification primer competition and low detection rate of long amplicon design in the existing trace template detection technology are effectively solved. Through innovative primer structure design and reaction mechanism optimization, the application effectively improves the detection sensitivity and adaptability of fragmented nucleic acids while maintaining high multiplex detection capability. The method is especially suitable for the analysis of cfDNA, embryo culture solution free DNA and other low-abundance and fragmented templates, and has good clinical application prospect.

A rotary tank assembly for a liner applicator is provided. The liner applicator is configured to apply a compound to a plurality of container closures. The rotary tank assembly includes a compound tank, a fill tube configured to fill the tank with an amount of the compound to a desired level, a sensor assembly adapted to measure a level of the compound within the compound tank, and a rotary joint assembly configured to pivotably couple the fill tube and the sensor assembly to the compound tank. The sensor assembly requires only a single probe.

The invention discloses a target positioning method and device, a controller, a storage medium and a computer product. Comprising the following steps: acquiring original echo data of all ultrasonic single probes on a vehicle; performing noise filtering on the original echo data to obtain target original echo data, the noise filtering including threshold preliminary filtering and noise filtering on the original echo data corresponding to each echo distance clustering result according to a target accurate distance; the target accurate distance is determined according to the echo distance information of the original echo corresponding to each echo distance clustering result and a vehicle movement track; and if the target original echo data has historical frame effective echo data, performing target positioning according to the historical frame effective echo data to obtain a position coordinate and a boundary of a target. According to the method, noise filtering is carried out on the original echo data to improve the signal-to-noise ratio of the target original echo data, and target positioning is carried out based on the target original echo data to improve the accuracy of target positioning.

The utility model provides a testing device for a split single chip of a wafer, which comprises a base platform, a placing platform is arranged on the base platform, and the top end of the placing platform is provided with a chip profiling groove for placing a single chip to be tested; a single-probe head is arranged on the single-probe seat, and the single-probe seat is used for being electrically connected with a to-be-tested single chip and enabling the single chip to emit light; the optical coupling test group comprises an optical fiber array which is detachably arranged, and the optical fiber array is aligned with the light outlet of the single chip to be tested; the first camera is vertically arranged at the top of the placement table, a lens of the first camera faces downwards, and the first camera is used for observing the position of the single chip to be detected; the second camera is obliquely arranged on the outer side of the placement table, a lens faces the placement table, and the second camera is used for observing the position of the single-probe head and the position of the optical fiber array. According to the utility model, by improving the structure, a function testing device for a single chip is formed, optocoupler and function testing can be flexibly carried out on the single chip to be tested by matching and assembling, the installation is convenient and fast, the automation degree is high, and the cost is low.

A dual-range response pH optical probe, the absorption spectrum of hematoporphyrin monomethyl ether shows a dual-response characteristic to the medium pH, that is, hematoporphyrin monomethyl ether can respond to the pH in two different ranges, so that the determination of pH in different ranges can be realized by using a single probe, that is, 'one needle two uses'. Hematoporphyrin monomethyl ether also has a ratio response characteristic to pH. The ratio type pH optical probe can overcome the influence of many non-pH factors. The present application utilizes the photometric dual-range response characteristic of hematoporphyrin monomethyl ether to pH to establish a new method for determining pH by using hematoporphyrin monomethyl ether as an optical probe. The present application is used for the determination of pH of practical samples such as small-volume samples, viscous samples, food samples with large acidity span, biological samples and environmental water samples, and satisfactory results are obtained, which shows the practical application advantages of the pH optical probe and opens up the application of light absorption type porphyrin compounds in analytical science.

The present application belongs to the field of environment and food detection technology, and specifically relates to a kind of on-site fluorescent visualization detection method of antibiotic residue.The present application constructs a convenient, fast and sensitive sensing detection platform by designing fluorescent probe molecule Eu@CDs with target recognition function and combining with smart phone portable sensor.The fluorescent probe molecule Eu@CDs of the present application has blue fluorescence emission at 450 nm.When NFZ is introduced, blue light is quantitatively quenched.After adding TC, the beta-diketone group of TC is combined with Eu 3+ Chelate, absorb energy and sensitize Eu through "antenna effect" 3+ Emit 617 nm characteristic red light.Thereby, the present application realizes on-site single-probe synchronous sampling detection of NFZ and TC, and the detection limit is 0.0034 mg / L and 0.00870 mg / L respectively, and the linear range is 0.011-32.0 mg / L and 0.029-40.0 mg / L respectively, which provides an efficient and accurate solution for rapid screening of environmental and food pollutants.

The invention provides an electrical performance test method and system for semiconductor probe equipment, and the method comprises the steps: applying a first excitation signal containing a first DC bias and a first frequency sine wave to multiple probes of the equipment, collecting a first response signal, calculating the fundamental wave contact resistance of each probe, carrying out the step adjustment of the first DC bias, and carrying out the step adjustment of the first frequency sine wave; measuring the steady state recovery time of the fundamental wave contact resistance to determine the relaxation time of each probe; matching a second frequency representing characteristics according to the relaxation time of each probe, applying a second excitation signal containing a second direct current bias and a sine wave corresponding to the second frequency, collecting a second response signal, and calculating a harmonic component amplitude of the signal at a preset integer multiple frequency of the second frequency; a single probe is used as a target probe, a reference probe is screened from a spatial neighborhood according to the similarity of the fundamental wave contact resistance, a spatial correlation feature vector of the target probe is constructed by combining the harmonic component amplitudes of the single probe and the reference probe, and the electrical performance of the equipment is judged based on the fundamental wave contact resistance of each probe and the corresponding spatial correlation feature vector.