55results about How to "The detection process is stable and reliable" patented technology

The invention discloses a terahertz biosensing device. Coplanar waveguide and microfluidic channel are designed on a device, generation, transmission and detection of terahertz and a microfluidic chipare integrated together, a terahertz signal is directly generated under excitation of external pump laser, and terahertz detection on a liquid biological sample in the microfluidic channel of the device can be achieved; application of a terahertz TDS system is prevented, and detection on a biological sample is facilitated; and the channel shape and thickness size of the terahertz microfluidic chip based on coplanar waveguide is designed according to the factors of fluid mechanics, various biomolecular dimensions, terahertz detection regional radius and the like, and is suitable for terahertzspectrum detection of most biological solution samples; and furthermore, the usage of samples can be saved since the small channel size of the microfluidic chip.

The invention relates to a device for detecting the position state of a wafer in a chip box based on PLC control. A principal computer is connected with a PLC, and sends a control command to the PLC and receives feedback information of the PLC. The PLC is connected with the input end of a servo motor through a servo driver, and sends a pulse output control signal to the servo motor to control theservo motor. The output end of the servo motor is connected with the PLC through a pulse encoder, and the servo motor sends feedback information to the PLC through the pulse encoder. The servo motor is connected with a laser sensor through a screw rod, and controls the motion of the laser sensor. The laser sensor is connected with the PLC, and detects the position information of a wafer. In the scanning process, the chip box is not moving, the laser sensor does reciprocating motion once, and thus, the position state of the wafer in the chip box can be calculated. The detection method is simple, and the detection process is stable and reliable.

The invention discloses a gas leakage detection method. The gas leakage detection method based on a carbon dioxide sensor comprises the steps of sealing a workpiece to be detected in a container which is excellent in airtight property and constant-temperature and is provided with a carbon dioxide gas sensor, performing vacuum processing on the workpiece to be detected and the container, introducing pure carbon dioxide into the workpiece to be detected under certain pressure, periodically collecting the concentration of carbon dioxide gas in the container by the sensor, performing digitalization processing on an amplified concentration signal and inputting the concentration signal after digitalization processing to an upper computer which is a virtual instrument, and denoising digital signals which are subjected to various noise interferences; obtaining the concentration value, in the detection beginning, in the container and the concentration value, in detection finishing, in the container according to the denoised carbon dioxide, and calculating the leakage amount of the workpiece to be detected according to a formula. The gas leakage detection method is convenient, reliable and low-cost in detection processes.

The invention relates to a transformer bushing used in power industries. The transformer bushing is composed of a connecting bar, a general cap, a joint, an oil pillow, a bushing, a porcelain sleeve, a flange, a shielding bushing, an insulating barrel, a voltage-sharing ball and a conducting tube, the shielding bushing is fixedly mounted on the flange, the voltage-sharing ball is arranged on the lower portion of the shielding bushing, the conducting tube is mounted in an inner cavity of the shielding bushing in an inserted manner, the bushing is mounted on the periphery of the conducting tube in a sleeved manner, the bushing is an insulating capacitor provided with multiple leading-out taps, and the lower end of the porcelain sleeve is connected with the flange. The multiple leading-out taps are arranged on the bushing and connected with a detecting device, so that detecting process can be more reliable; the taps are led out from an outermost-layer electrode and a secondary outer-layer electrode of the bushing respectively, and a low-power power source of with certain voltage can be obtained between the two electrodes during equipment running, so that a power source is provided for the detecting device; connection between test taps and the flange is reliable and compact, so that performance testing is facilitated; and grounding seats are arranged in the test taps, so that grounding is facilitated integrally.

The invention discloses a hub end face deformation detection method and a hub end face deformation detection device. The invention relates to the technical field of vehicle detection. The method comprises the steps that a hub is rotated by at least one circle, the outer end face of the hub is measured to obtain M sets of three-dimensional coordinate data, the number of the M sets is multiple, eachset of data comprises N parts of data, and Z-axis coordinates perpendicular to the side face of the hub are measured by a laser measuring device; p parts of data are sequentially selected from the Nparts of data to serve as a set to obtain N-P + 1 sets of data, P is smaller than or equal to N, and straight line fitting is conducted on the data in each set in the N-P + 1 sets of data to obtain astraight line with the minimum straight line slope; averaging the data constituting the group of straight lines having the smallest straight line slope as the numerical value of the Z axis in the group of three-dimensional coordinate data; equal. According to the invention, the accurate hub end face deformation with high reliability can be obtained through a large amount of data of the hub end face measured by laser.

The invention discloses a Taqman real-time fluorescent PCR (Polymerase Chain Reaction) kit for detecting porcine epidemic diarrhea viruswild strains in porcine umbilical cord blood and use of the PCR kit. The kit comprises a pair of primers and a specific fluorescent probe, wherein sequences of the primers are as illustrated by SEQ ID NO: 1 and SEQ ID NO: 2, and a sequence of the fluorescent probe is as illustrated by SEQ ID NO: 3. The kit disclosed by the invention can be used to perform specific qualitative and quantitative detection on the porcine epidemic diarrhea viruswild strains in the porcine umbilical cord blood, has the advantages of higher hemolysis resistance, pollution prevention, sensitivity, good universality and excellent repeatability, can be used to accurately evaluate and diagnose existence, elimination and piglet infection conditions of the porcine epidemic diarrhea viruswild strains of a sow, also can be used to carry out evaluation on effect of a porcine epidemic diarrhea vaccine, and therefore has a very wide range of application value. Meanwhile, the kit has the advantages of a simple and convenient detection process, simplicity in required instruments and equipment, short detection time, relatively reliable result, no pollution, low requirement on technical operations, capability of being widely popularized in the basic layer, relative easiness in quality control and easiness for standardization.

The invention relates to a bolt strength detection device. The bolt strength detection device comprises an equipment cabinet, a positioning platform fixedly arranged on the equipment cabinet, a pressing mechanism which is connected with the top of the equipment cabinet, is used for clamping of a workpiece and vertical pressing of the workpiece onto the positioning platform, a detection mechanism which is fixedly arranged on the left side of the equipment cabinet and is used for transverse pushing of welding bolts on the workpiece and reading of test data, a discharging mechanism which is arranged at the back side of the equipment cabinet and is capable of moving to be below the pressing mechanism to take the tested workpiece, and a human computer interface which is fixedly arranged on thetop of the equipment cabinet, is connected with the detection mechanism, and is used for displaying detected information. The bolt strength detection device can be used for grabbing, detecting, and discharging of workpieces, is high in automatic degree, is capable of reducing labor intensity and increasing working efficiency, and is high in detection precision; and the whole detection process is more stable and reliable.

The invention discloses a kit for rapidly detecting the SNP site of a Y chromosome and a method, and the method is applied to the rapid identification of Y chromosome haplotype pedigrees of male individuals in forensic science. The rapid detection kit for the identification of the characteristic sites of the Y chromosome haplotype pedigrees of East Asian males includes primers corresponding to theSNP characteristic sites used for amplification detection of the Y chromosomes and probes of two mutation type sequence characteristics representing the SNP sites. The using method includes adding asample into plates having 96 or 384 pores, and performing an amplification reaction in a PCR instrument after a PCR reaction system is well mixed; putting the plates into the quantitative PCR instrument having an SDS scanning function to read a fluorescence signal after the amplification is finished; and automatically analyzing the Y-SNP haplotype of the sample by the instrument according to the fluorescence signal, and outputting a result in a spreadsheet. Through the kit, the detection can be completed by one step amplification, purification and template preparation are not needed, and the detection process of the Y-SNP can be simplified.

The invention discloses a chemiluminescence immunoassay analyzer. The analyzer comprises a turntable assembly used for carrying and insulating capillary tubes, a blowing assembly used for removing residual liquid in the capillary tubes, a detection assembly used for detecting the number of luminous photons of the capillary tubes, and a bottom plate for mounting the turntable assembly, the blowingassembly and the detection assembly. The analyzer also comprises a material pushing and recycling system and a sample feeding assembly. The material pushing and recycling system comprises a fixed seat, a capillary tube pushing device, a storage device, a first driving device and a waste liquid recycling device; the capillary tube pushing device is used for pushing out a capillary tube from the storage device and extruding out the reagent stored in the storage device; the storage device is used for storing a reagent and providing a coated capillary tube. According to the invention, the cooperation is precise, the installation of each station is more compact, the size of the analyzer is smaller, the occupied space is smaller, and the analyzer is more miniaturized; and the detection efficiency can be effectively improved.

The invention discloses a method for detecting the odor level of drinking water based on an electronic nose. The method comprises the following steps: (1) cleaning each sensor in electronic nose detection equipment until the stability of an electronic nose baseline is reached; (2) ensuring that the smell of gas in a test environment does not interfere with a detection result; (3) cleaning a container for later use; (4) transferring a drinking water sample to be detected into the container for later use for pretreatment under the experimental conditions of conducting standing in a water bath at60-70 DEG C, conducting heating for 5-15 minutes, and introducing 200mL of a water sample into the container in a headspace sample introduction manner; and (5) analyzing a sensor signal, establishinga relationship between the odor level strength or the water quality index of the water sample and the electronic nose response by adopting a PLS regression method, evaluating the quality of the model, judging the odor level of the drinking water, and predicting the quality of the drinking water. The method lays a foundation for rapid and stable identification and odor intensity distinguishing ofodor substances in drinking water by using the electronic nose, and provides method support for water quality monitoring in water transportation and distribution management and water source management.

The invention discloses an automatic chamfer detection machine. The detection machine comprises a base, a support rack installed on the base, an X-direction transmission device, a front-end Y-direction transmission device and a back-end Y-direction transmission device. The support rack consists of a left column, a right column and a cross beam. The left column and the right column are respectively fixed on two sides of the upper surface of the base. The cross beam is connected to the top ends of the left column and the right column in a crossing manner. The front-end Y-direction transmission device further comprises a front-end Y-direction motor, two front-end Y-direction guide rails, a front-end Y-direction screw rod and a front-end Y-direction nut. The front-end Y-direction motor is installed on one end of a charging side of the support rack. Multiple guidance column through-holes for threading-in of guidance columns are arranged in an adjustment rack. The guidance columns penetrate through the guidance column through holes and are fixedly connected with the upper surface of a light source. A material collecting box used for collecting defective products is arranged in the center of the base. A case where the power supply and the electric control equipment are arranged is arranged under the base. According to the invention, the detection machine is capable of replacing workers to achieve chamfer detection, so all kinds of problems in eye detection are solved; manpower is saved; detection processes are precise and reliable; detection efficiency is high; and cost is greatly reduced.

The invention discloses a spraying device and method for detecting a wall material. The spraying device comprises a crane slide rail, a water supply system, a spraying system and an automatic pH control system. The water supply system comprises a mechanical pump and a water supply pipeline, and the spraying system comprises a spraying pipe, a spraying cabin, a U-shaped bracket, a to-be-detected wall material, a sample holder and a liquid discharge pipe; the spraying device provided by the invention is simple to operate and is reasonably designed, a detection process is stable and reliable, a flow velocity and spraying time of a spraying liquid in the spraying device are adjustable; a pH value of the spraying liquid can be automatically measured, monitored and adjusted in real time throughan automatic pH control system; and under different acidity acid rain conditions, a process that the wall material is infiltrated and scoured by rainwater is simulated and the spraying liquid in the spraying device are circularly sprayed, the spraying liquid with different spraying time is tested till that contents of harmful substances in the spraying liquid is balanced, and a content change trend of the soluble harmful substances in the wall material can be evaluated.

The invention discloses an automobile instrument detection circuit. The detection circuit comprises a main control module, a bus interface module, a Bluetooth module, a FLASH module and a wireless transceiver module, the bus interface module, the Bluetooth module, the FLASH module and the wireless transceiver module are respectively connected with the main control module. The invention further provides an automobile instrument detection system and a detection method thereof. Compared with the prior art, the detection circuit provided by the invention is high in pertinence and has good compatibility with an external instrument to be detected connected with the detection circuit; according to the detection system provided by the invention, specific data processing flows of various communication protocols are built in, so that the detection system can process test data according to corresponding communication protocol regulations while sending out a driving signal matched with an external instrument to be detected; according to the detection method provided by the invention, the external to-be-detected equipment is detected by a complete detection closed loop, so that the detection process is more independent and reliable, and the credibility of the obtained detection data is higher.