37 results about "Double probe" patented technology

The invention discloses a double-detector linkage automatic fire extinguishing control method and system for an outdoor charging place, and belongs to the technical field of fire safety. The system comprises a water source supply unit, a detection alarm unit, a control execution unit and a fire extinguishing spraying unit. A dual detection mechanism of the temperature sensing detector and the flame detector is adopted, only when the two detectors give an alarm at the same time, the input and output module judges that a fire behavior is real, and signals are synchronously distributed to the automatic control switch, the fire control room and the charging control cabinet. The system provides an automatic, remote and manual three-start mode to ensure the reliability; the charging control cabinet automatically cuts off a power supply to prevent electric shock after receiving the signal; the anti-freezing design that an underground cement pool is combined with an overflow valve emptying pipeline is adopted, and normal operation can be achieved in the environment of minus 35 DEG C. According to the invention, the risk of false alarm of a single detector is thoroughly eliminated, the response time does not exceed 30 seconds, and the technical problems of low fire detection accuracy, poor winter adaptability and lack of power linkage protection in an outdoor charging place are effectively solved.

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.

This invention discloses a microRNA-responsive 1,2-dioxane-based chemiluminescent compound, its dual-probe system, kit, synthesis method, and applications. The compound's core is an o-acrylate-substituted phenoxyadamantane-1,2-dioxane, with the phenolic hydroxyl group protected by an azide benzyl group. The two-component probe system constructed based on this compound comprises an azide-modified first probe and a phosphine-modified second probe, each complementary to different segments of the target microRNA. Hybridization brings the two probes closer, triggering a Staudinger reaction to remove the protecting group and activate the chemiluminescent signal. This probe system requires no enzyme amplification or nucleic acid extraction, achieves a detection limit of 1.37 fM, and a signal-to-noise ratio as high as 157-fold. It can be successfully used for real-time imaging of endogenous microRNA-21 in live cells, showing broad application prospects in early tumor screening, auxiliary diagnosis, and prognostic assessment.

The invention provides a phased array ultrasonic detection device and an automatic scanning system suitable for a circumferential weld of a small-diameter pipe. The automatic scanning system comprises a scanning frame, a path monitoring module, a coupling device, a driving device and a control device, the scanning frame comprises a cross rod and two probe clamping mechanisms arranged on the cross rod; the path monitoring module comprises an industrial camera, and the industrial camera is arranged on the cross rod, can perform angle adjustment and is used for monitoring a scanning path in real time; the coupling device can convey a coupling agent to the probe; the driving device is connected with the scanning frame and can walk; the control device can control walking of the driving device. The detection device comprises the automatic scanning system and a phased array ultrasonic detection instrument. According to the invention, while the requirements of stable coupling and constant-speed scanning are met, the double probes are symmetrically placed on the two sides of the welding seam for simultaneous scanning, and the scanning path is monitored in real time and the scanning track is remotely controlled and corrected by virtue of the industrial camera, so that the scanning precision is ensured.

The application relates to the technical field of biological detection, in particular to a method for in-situ quantitative detection of specific glycosylation of target protein based on double probes. The method provided by the application comprises the following steps: a protein probe and a glycan probe are used to combine with target protein and target glycan respectively, and the spatial proximity relationship after combination triggers hybridization between the probes on the same target protein to form hybrid double strands; the DNA enzyme of the protein probe is used to enzymatically cut the glycan probe on the hybrid double strands under the action of a metal cofactor; and the report peptide released after enzymatic cutting of the glycan probe is subjected to mass spectrometric quantitative analysis, so that the signal of protein-specific glycoform is converted into a mass spectrometric signal.

The invention relates to a double-probe detection kit for detecting staphylococcus aureus in meat products and a preparation method of the double-probe detection kit, and belongs to the technical field of food safety. The double-probe detection kit is composed of a magnetic capture probe reagent and a double-signal nano-enzyme probe reagent which are independently packaged and have the same volume; the magnetic capture probe reagent is a vancomycin modified reticular magnetic bead and is used for specifically binding staphylococcus aureus in a meat product detection sample and carrying out separation and enrichment treatment; the double-signal nano-enzyme probe reagent is a blue fluorescent carbon dot modified by a nucleic acid aptamer and is used for specifically combining the staphylococcus aureus subjected to separation and enrichment treatment and generating a staphylococcus aureus concentration dependent colorimetric signal and a fluorescent signal. According to the invention, mutual verification is carried out between dual-mode signals, so that the accuracy of a detection result is improved; according to the method, the detection time is within 1.5 h, the detection time is short, the detection sensitivity is high, and the method has good specificity for common type strains.

The application discloses a kind of thermal desorption treatment contaminated soil thermal conductivity test system and test method, test system includes test cavity, heating furnace, gas pressure control system and soil sample thermal conductivity test system, gas pressure control system includes gas pressure sensor, gas pressure control valve, nitrogen source, tail gas processor and vacuum pump, soil sample thermal conductivity test system includes double probe, wire, direct current power supply, multichannel temperature recorder and thermal conductivity calculation system, the double probe insertion to be measured soil sample and place in test cavity, the application can operate under high temperature environment, simultaneously, two different test methods are used to calculate two thermal conductivities for the same to-be-tested soil sample respectively, and the mean value is obtained by comparison and verification, effectively save the time of parallel test under high temperature environment, reduce the experimental error of calculating thermal conductivity.

The invention provides an automatic test method, device and equipment and a storage medium, the automatic test method is applied to the automatic test equipment, the automatic test equipment comprises a driving mechanism, a detection mechanism and a double-probe mechanism, and the automatic test method comprises the following steps: controlling the driving mechanism to drive probes in the double-probe mechanism to move to a detection point position of a to-be-detected material; when the probe is in contact with the detection point, collecting measurement data of the detection point through a detection mechanism; judging whether the to-be-detected material is an unqualified material or not according to the measurement data and preset standard information; and when the to-be-detected material is an unqualified material, obtaining abnormal data in the measurement data. According to the invention, the automatic measurement of the measurement data of the to-be-detected material can be realized, the measurement precision is improved, the labor cost is saved, the unqualified material can be detected automatically, rapidly and accurately, the yield is improved, the abnormal data of the unqualified material can be obtained automatically, and the detection efficiency is improved. The automatic analysis of the disqualification reason of the to-be-detected material is realized.

The utility model belongs to the technical field of monitoring system maintenance, and relates to an auxiliary device based on monitoring system maintenance, which comprises a mounting plate, a universal meter body and exploring tubes, the two exploring tubes are respectively positioned on the outer side of the mounting plate, the mounting plate is U-shaped, the universal meter body is arranged in the mounting plate, the bottom of the mounting plate is provided with a position fixing mechanism, and the position fixing mechanism is fixed on the universal meter body. The universal meter body is symmetrically provided with the connecting lines, one end of each connecting line is connected with the probe tube, and the universal meter body can be fixed on the wrist or other places through the mutual cooperation of the mounting plate, the supporting plate, the cylindrical block, the first spring, the positioning plate, the magic tape bandage and the like. When the universal meter is used, the probe tube can be clamped on an object needing to be measured, in addition, the universal meter body can be separated from the mounting plate when needed, the universal meter is flexible to use, and the problems of unstable operation and data deviation easily caused by holding the universal meter with a single hand and controlling the double probes are effectively solved.

The application discloses a nucleic acid absolute quantification method based on nucleic acid constant temperature amplification, which comprises the following specific steps: step one, sample pretreatment, blood samples and saliva samples are pretreated respectively; step two, reaction system configuration and assembly; step three, digital micro-reaction unit preparation and amplification; and step four, multiple signal analysis and absolute quantification. In the application, multiple primer design and a double-probe system are adopted, so that the mutation detection rate is improved, and the detection limit can be reduced to 0.1% variation through Cas12a-sgRNA auxiliary verification. The double-emulsification technology of the micro-fluidic chip is adopted, so that the droplet diameter variation coefficient is controlled within 5%, and the clogged micropore rate is reduced by real-time analysis of the micropore array image through the ImageJ software, automatic marking and exclusion of abnormal units.

To provide a method for enrichment of at least one target nucleic acid in a library of nucleic acids.SOLUTION: A first oligonucleotide is hybridized to a target nucleic acid in library of nucleic acids having first and second adapters. The hybridized first oligonucleotide is extended with a first polymerase, thereby producing a first primer extension complex including the target nucleic acid and the extended first oligonucleotide. The first primer extension complex is captured, enriched relative to the library of nucleic acids, and a second oligonucleotide is hybridized to the target nucleic acid. The hybridized second oligonucleotide is extended with a second polymerase, thereby producing a second primer extension complex including the target nucleic acid and the extended second oligonucleotide, and further liberating the extended first oligonucleotide from the first primer extension complex.SELECTED DRAWING: Figure 1

The invention discloses a probe for researching a working mechanism of NAD (Nicotinamide Adenine Dinucleotide) or a metabolite thereof and application of the probe. The probe is a double-probe combination and comprises a first probe and a second probe, the first probe is azide-modified nicotinamide adenine dinucleotide or azide-modified nicotinamide adenine dinucleotide metabolite, namely, an azide group is introduced to the adenine 8 site of the nicotinamide adenine dinucleotide or the nicotinamide adenine dinucleotide metabolite; enabling the azide group and adenine of nicotinamide adenine dinucleotide or nicotinamide adenine dinucleotide metabolite to form a photo-crosslinking reaction group; and the second probe is an EBT probe with biotin. The molecular structure of the first probe is closer to that of the NAD or the metabolite of the NAD, the interaction protein captured by the first probe can better reflect the real binding condition of the NAD or the metabolite of the NAD and the interaction proteome, and therefore the working mechanism of the NAD or the metabolite of the NAD can be reflected more accurately and truly.

The invention relates to a double-probe detection kit for detecting escherichia coli O157: H7 and a preparation method of the double-probe detection kit, and belongs to the technical field of food safety. The double-probe detection kit consists of a magnetic separation probe reagent and a copper-manganese double-metal nano-enzyme probe reagent which are independently packaged. The magnetic separation probe reagent is a concanavalin agglutinin A modified magnetic bead, and is used for specifically binding escherichia coli O157: H7 in a meat product detection sample and carrying out separation and enrichment treatment; the bimetallic nano-enzyme probe reagent is copper-manganese bimetallic nano-enzyme modified by a nucleic acid aptamer, and is used for specifically combining with the escherichia coli O157: H7 subjected to separation and enrichment treatment and generating an escherichia coli O157: H7 concentration dependent colorimetric signal and a fluorescence signal. According to the invention, mutual verification is carried out between dual-mode signals, so that the accuracy of a detection result is improved; the detection time is within 1.5 h, and the method has good specificity for common type strains. The invention provides a design thought for the development of detection sensors for escherichia coli O157: H7 and other meat-derived pathogenic bacteria.

The invention discloses a stray capacitance change voltage measurement method and electronic equipment. According to the stray capacitance self-adaptive voltage measurement method provided by the invention, the design of double probes which are asymmetric in structure is adopted, and a set of complete closed-loop processing flow is constructed, so that remarkable technical progress is realized. Specifically, firstly, according to the method, ground stray capacitance change caused by environmental factors can be sensitively sensed in real time through the difference (discriminant quantity) of double-probe response voltage, and the inherent defect that a traditional single-probe method cannot diagnose system parameter drift by itself is overcome; and secondly, by introducing an intelligent transformation ratio adjustment algorithm, the method can automatically and accurately carry out iterative correction on the current transformation ratio, and effectively compensates a measurement error caused by stray capacitance change, thereby ensuring high precision and stability of long-term measurement without any manual intervention.

The present disclosure provides an automatic test method, an automatic test device, and a storage medium. The automatic test method is applied to the automatic test device. The automatic test device includes a driving mechanism, a detection mechanism and a dual-probe mechanism. The automatic test method includes controlling the driving mechanism to drive a probe in the dual-probe mechanism to move to a position of a detection point of a material. When the probe contacts the detection point, the detection mechanism collects measurement data of the detection point. Determining whether the material is an unqualified material according to the measurement data and preset standard information. When the material is the unqualified material, abnormal data is obtained from the measurement data. The present disclosure reduces human errors, improves data accuracy and reliability, and significantly improves work efficiency.

A new two-probe slide screw load-pull tuner of which the probes share the same slabline section; they are inserted diametrically at fixed depth facing on opposite sides of the center conductor. The tuner does not have cumbersome adjustable vertical axes controlling the penetration of the probes and its low profile is optimized for on-wafer operations. The carriages holding the probes are moved along the slabline using electric stepper motors or linear actuators. The calibration uses mutual de-embedding of initialized probes and is 20 or more times faster than the full probe permutations calibration.

The application discloses a kind of double-probe nanometer measuring instruments, including measurer main body;The front end of the measurer main body is equipped with first probe, second probe;The first probe is used to detect the signal of the measured object under external environmental interference;The second probe is used to detect the interference signal of the nearby environment of the measured object;The beneficial effects of the application are that: the design adopts double probe, one probe detects the signal of the measured object under external environmental interference, another detects the interference signal of the nearby environment of the measured object, by calculating two signal values, finally two values are subtracted, the value obtained is the value of the measured object;Let nanometer measurement system save traditional closed bad mirror equipment, and can measure large measured object.

This invention discloses a 5GC industrial private network handover latency detection method. It utilizes a dual-probe measurement mechanism by deploying a first and second probe on the N2 and N3 interfaces respectively, allowing for more precise timestamp settings on the control plane and data plane. The method also incorporates a 5G synchronization clock to calibrate the clock deviation between the two probes. Furthermore, it calculates multi-level latency by acquiring the differences in start and end timestamps of wireless transmission latency, 5GC forwarding latency, and the processing start and end timestamps of each stage of the protocol stack composed of IP, UDP, and GTP-U. This allows for accurate calculation of the network quality of the operating device, improving detection accuracy. By compiling keepalived to support bidirectional forwarding detection and coordinating with VRRP primary / backup node handover, it achieves millimeter-level fault detection, improving fault detection efficiency, shortening the network fault detection cycle, increasing response speed, and enabling millisecond-level handover, thus enhancing handover efficiency.

The invention provides a weld joint detection device for an intelligent electric resistance welding can body welding machine, and relates to the technical field of weld joint detection, the weld joint detection device comprises a rack, a feeding mechanism, a stand column, a loading mechanism, a detection mechanism and a detector; the feeding mechanism is installed on one side of the machine frame, the feeding mechanism is assembled on the stand columns, and the detection mechanism is installed on the machine frame and located below the feeding mechanism. The feeding mechanism is stable in feeding and high in reset precision, collision and damage of the tin cans are avoided, meanwhile, manual feeding is replaced, the labor intensity is reduced, and the feeding efficiency is improved. According to the detection mechanism, the position of the first probe is adjusted through the adjusting cylinder, the position of the second probe is adjusted in combination with the sliding table cylinder and the lifting cylinder, probe positioning is flexible and accurate, welding seam detection of tin cans of different specifications can be adapted, the detection range is wide, double probes are matched with the detector, it is ensured that detection signals are transmitted in time, and the detection result is accurate; and missing detection and false detection can be effectively reduced.

This invention relates to the field of electrochemical technology, and more particularly to a method for testing the reaction kinetics at the Bi electrode interface in Li-Bi batteries. The dual-probe measurement system constructed in this invention works collaboratively on a precise three-dimensional positioning platform of a shared scanning electrochemical microscope. One probe maps the electrochemical activity distribution on the electrode surface, visually reflecting the spatial location of low-activity phases, while the other Hg probe simultaneously records the Li content in the corresponding region. + Concentration or diffusion coefficient. This "functionally complementary, spatially synchronized" measurement mode can integrate observed electrochemical data, interfacial electrochemical activity, and Li... + The migration dynamics are directly related, thus providing experimental evidence for revealing the true rate-limiting steps in the phase transition process, enabling a more comprehensive and three-dimensional analysis of complex electrode processes, and making up for the limitations of single signal measurement.

The invention provides a bimolecular fluorescent probe method for distinguishing hydroxyl radical generation positions in a heterogeneous Fenton reaction system, and relates to the field of environmental chemistry. Comprising the following steps: adding an outer ball adsorptive first probe and a non-adsorptive second probe into a to-be-detected heterogeneous Fenton reaction system, fully reacting, sampling, detecting and correcting to obtain a concentration ratio of a second oxidation product to a first oxidation product; and adding a pH regulator according to the concentration ratio so as to regulate and control the generation rate and the generation position of the hydroxyl free radicals. According to the method, a bimolecular probe system is creatively adopted, two probes are distributed on the surface of a mineral and in a solution after being combined at different concentrations and are used for representing distribution of hydroxyl radicals, the generation position of the hydroxyl radicals is defined, and the long-standing mechanism dispute is solved; by establishing and applying a precise correction model aiming at the coumarin fluorescence inner filter effect, key technical obstacles in double-probe fluorescence detection are successfully overcome, and the reliability of a quantitative result is ensured.

The utility model belongs to the technical field of vortex shedding flowmeters, and particularly relates to a double-probe vortex shedding flowmeter which comprises a measuring tube, flanges are fixedly connected to the two ends of the measuring tube, first connecting seats are fixedly connected to the top and the bottom of a probe fixing seat, and connecting wires are fixedly connected to the end of a first probe and the end of a second probe. Limiting frames are clamped outside the probe fixing seat, limiting rods are in threaded connection with the outer portions of the two-way threaded rods, second limiting columns are fixedly connected to the opposite faces of the two limiting rods, and limiting grooves are formed in the ends of the limiting rods. By arranging the first probe, the second probe, the limiting frame, the two-way threaded rod, the second limiting column and the clamping groove, it can be avoided that due to corrosion of a connector, the overhaul difficulty of the flowmeter is increased; and by arranging the first limiting column and the inserting groove, the limiting rod can move stably, and then the clamping block is inserted into the inserting groove, so that the flowmeter display can be mounted and dismounted.

The application discloses a rectangular waveguide microstrip power divider, and relates to the microwave device field, and solves the problem of insufficient power processing capacity in the prior art.The technical scheme is as follows: a microstrip probe is suspended on each of an upper waveguide body and a lower waveguide body along the direction of the center line of the wide side of the rectangular waveguide; the microstrip probes suspended on the upper waveguide body and the lower waveguide body form a double-probe structure in a face-to-face mode with the center line of the wide side of the rectangular waveguide as a symmetry plane; and a waveguide isolation structure is formed on the end face of the two microstrip probes, so as to absorb the mutual coupling signals generated by the double-probe structure.

The utility model discloses a support device shared by eddy current and photoelectric detection double probes. The support device comprises a preset base rod, a connecting frame, an adjusting structure and a supporting structure. The preset base rod serves as a supporting foundation, the connecting frame can slide on the base rod, and the adjusting structure and the supporting structure are connected through the first connecting sleeve and the second connecting sleeve respectively. The adjusting structure is composed of a longitudinal adjusting plate, an arc-shaped angle adjusting plate, an extending sliding plate and the like and is matched with a track plate to achieve multi-dimensional adjustment, and a transverse adjusting plate is connected with a supporting structure main rod through an electric protection hose. Adjusting rods of the supporting structure are connected in a hinged mode, angle locking is achieved through a locking pin, and the tightness degree between the adjusting rods and the supporting structure is controlled through a locking piece device. All parts of the device work cooperatively, and the problems that an existing support device is poor in installation adaptability, inflexible in adjustment and insufficient in stability are solved. Aluminum alloy or carbon steel can be selected as a preset base rod material to adapt to various scenes such as a machine tool and a production line.

The invention discloses a plasma parameter diagnosis method based on a Bi-LSTM model and related equipment, and the method comprises the steps: obtaining I-V characteristic data of double probes in a DC glow discharge plasma device under different potential deviation angles and different discharge voltage-air pressure combinations, plasma parameters corresponding to the I-V characteristic data at the datum point are recorded; taking the plasma parameters as labels of the I-V characteristic data to construct a data set, dividing the data set into a training set and a verification set, and training a preset Bi-LSTM model by taking minimization of a mean absolute error as a target to obtain a target Bi-LSTM model; and inputting the I-V characteristic data of the double probes to be tested into the target Bi-LSTM model to obtain plasma parameters corresponding to the I-V characteristic data of the double probes to be tested.

The present disclosure belongs to the technical field of nuclear power and particularly relates to an optical automatic inner diameter measuring system and method for a heat pipe expansion zone. The system of the present disclosure is compact in structure and convenient to install, integrates a mechanical arm, a tube plate positioning seat and a motion controller, and can realize cooperative detection of double probes or multiple optical probes. The optical probe can complete full-depth and multi-direction inner diameter measurement of the expansion zone at one time, automatically judge defects and record the tube number. The guide sleeve is self-adaptive to different pipe diameters, ensuring the concentricity of the probe and the pipe hole. By replacing the positioning seat, all pipe holes of the tube plate can be covered, and the system has a coordinate calibration function to avoid cumulative errors. The system supports modular quick connection installation, and the upper computer records hole information in real time, distinguishes detection states, and efficiently positions and measures the line of sight.

The application provides a double-probe electron density diagnosis method and system based on a long short-term memory network, and relates to the field of plasmas. The method comprises the following steps: building a plasma simulation vacuum chamber, obtaining double-probe I-V characteristic curve data, and calculating three-probe electron density at the same position; constructing a bidirectional long short-term memory network model, taking the double-probe I-V characteristic curve data as input features, taking the three-probe electron density as labels, training the bidirectional long short-term memory network model, and obtaining a trained bidirectional long short-term memory network model; inputting double-probe I-V characteristic curve data to be tested into the trained bidirectional long short-term memory network model, and outputting a diagnosis result. e The application uses double-probe I-V characteristic curve data at the same position as features, three-probe N e as labels to train the bidirectional long short-term memory network model, solves the problem that the double probe cannot directly measure N e due to the fact that the double probe can only collect high-energy part of electrons in the plasma, and the number of points required to collect the double-probe I-V characteristic curve is less.

The present application relates to power system equipment online monitoring technology, specifically relates to a substation lightning arrester bus voltage phase detection point selection method based on double probes, through the calculation of a simple model, the relationship expression of the voltage of a space three-phase live body and the ground electric field intensity component is derived, and the detection point selection method is obtained; three typical lightning arrester arrangements of an ultra-high voltage substation are modeled; the error between the phase of the z-axis component of the electric field intensity of the detection point and the phase of the bus voltage is obtained through simulation, and the positions of the double detection points of the lightning arrester under different operating conditions are determined; according to the measurement results of the double electric field probes, the phase sequence of the three-phase voltage is analyzed, and according to the comparison between the phase angle difference of the double detection points and 120°, the voltage correction phase angle δ is obtained, and the three-phase bus voltage phase is back calculated; according to the lightning arrester full current and the voltage phase angle, the resistive current is calculated. The method is suitable for quickly finding the measurement position with the minimum error in the substation with a complex working environment, and improves the measurement accuracy.

The utility model discloses a double probe temperature sensor, including temperature sensor main part, the bottom of temperature sensor main part is provided with two wiring port, the inside plug connection of wiring port has detection probe, the upper surface plug connection of detection probe has reinforcing institution, the upper surface of wiring port and detection probe all is provided with positioning hole. This double probe temperature sensor, through the setting of reinforcing institution, when using, respectively with left half arc and right half arc lap joint in detection probe surface, make left half arc and right half arc inside setting antiskid pad close its surface, utilize the positioning bolt again and fix left half arc and right half arc well, cooperate the support provided by the two reinforcing rods of one side setting, effectively enhanced the overall structural strength of detection probe, prevent its deflection or deformation in the installation or use process, thereby ensure that detection probe is always in stable vertical state, guarantee the accuracy and reliability of measurement.