34results about How to "High detection accuracy" patented technology

An acceleration sensor system includes: a first and a second fixed electrodes; a movable electrode for providing a first and a second capacitors; a detection capacitor for detecting a capacitance difference between the first and the second capacitors; a charge voltage conversion circuit for converting a capacitance change of the detection capacitor to an output voltage; a detection bias voltage applying means; a vibrating means for vibrating the movable electrode such that a displacement bias voltage is applied in a first period and no displacement bias voltage is applied in a second period; a sampling means for sampling the output voltage during the second period when the movable electrode is stationarily vibrated; and an acceleration signal generating and outputting means for generating an acceleration signal on the basis of a sampling result.

The invention provides an intelligent luggage and postal article detection system which comprises an intelligent detection area, an intelligent identification area and a manual inspection area, wherein the intelligent detection area, the intelligent identification area and the manual inspection area form a safety check area. The intelligent detection area, the intelligent identification area and the manual inspection area are arranged in three different areas respectively. The intelligent detection area is provided with a transmission device, an X-ray image acquisition device, an X-ray image automatic comparison and identification device and a labeling device; the intelligent identification area is provided with a label identification device; the transmission device is used for transmitting luggage and postal articles to be detected; the X-ray image acquisition device is used for obtaining X-ray images of the luggage and postal articles; the X-ray image automatic comparison and identification device is used for carrying out automatic comparison and analysis on the obtained X-ray images of the luggage and postal articles and X-ray images in a database to judge whether the obtained X-ray images of the luggage and postal articles have forbidden articles; the labeling device is used for attaching electronic labels to the luggage and postal articles having the forbidden articles; and the label identification device is used for automatically identifying the luggage and postal articles having the electronic labels.

A gas level display controller sequentially calculates a mass of a compressed gas stored in a tank and makes a comparison between a first calculated value obtained at a first timing and a second calculated value obtained at a second timing later than the first timing. When the second calculated value is smaller than the first calculated value, the gas level display controller makes the remaining amount of the compressed gas in the tank displayed on a predetermined display device, based on the second calculated value. When the second calculated value is not smaller than the first calculated value, the gas level display controller makes the remaining amount of the compressed gas in the tank displayed on the predetermined display device, based on the first calculated value. This arrangement effectively prevents the display of the remaining amount of the compressed gas in the tank on the display device from including erroneous display, which indicates an increase of the gas level, regardless of no additional supply of the compressed gas into the tank.

A magnetic sensor disposed in an axial direction of a shaft of a motor detects the rotation angle of the rotor by detecting magnetism of the magnet that is disposed on one end of the shaft. A first and second conducting wires extend in parallel with an axis of the shaft, and are equidistantly positioned relative to the axis, on a virtual circle that has a center point on the axis of the shaft. The electric current flowing in the first conducting wire and the electric current flowing in the second conducting wire have the same magnitude and the same flow direction with each other at any time. When the first conducting wire and the second conducting wire are on opposite sides relative to the center point of the virtual circle, the magnetic fields around the conducting wires cancel with each other, thereby enabling accurate detection of the rotation angle.

An over-current detection circuit using the ON-voltage of a main MOSFET is provided, which is resistant to process variations of a main MOSFET and is not easily influenced by switching noise. Separately from a main MOSFET (Q1), a sense MOSFET (Q3) whose size is 1/m of the main MOSFET is provided and it is caused to be normally on. A DC ON-voltage generated when a current that is 1/m of an over-current value is caused to flow through the sense MOSFET is obtained as a reference voltage for over-current setting. The ON-voltage when the main MOSFET is on is sampled and held, and it is obtained as a DC voltage. These DC voltages are compared in a comparator (COMP).

The present invention discloses a method for detecting a plug-in of an online game. The method comprises: analyzing data of an on-going game in a manner that the game data are recorded and uploaded to a game terminal; comparing the game data with a database in the game terminal by the game terminal; and if the game data and data in the game terminal are different or greatly different, determining the game data are abnormal; and secondly, performing logical analysis on the abnormal game data, wherein logical analysis results are divided into accidental data anomalies and plug-in interference anomalies, accidental data anomalies are logical errors caused by a game client self, resulting in the abnormal game data, and plug-in interference anomalies are anomalies caused by the plug-in of the game. In the method, by real-time monitoring of the data in the game, data required to be changed by the plug-in are directly detected, and the detection is stable and accurate. At the same time, intermittent detection is adopted in a detection method, so as to improve the fluency of the game on the premise of ensuring the accuracy of the detection.

The present invention discloses the application of electric eddy current sensor in measuring liquid pressure, and the application can meet the requirement in measuring pressure and liquid level of high viscosity and low flowability slurry fluid in high temperature, high pressure, high frequency response and other conditions, and has high overload resistance, high measurement precision, wide measurement range and high stability. The present invention has elastic diaphragm set in the lower part of outer side wall of liquid container and communicated with the measured liquid; horizontal metal link rod with one end fixed to the elastic diaphragm and the other end near the electric eddy current sensor with one horizontal interval in between; and processing circuit module connected to the output of the electric eddy current sensor. The present invention may be applied widely in various liquid pressure and level measuring fields.

An exhaust gas sensor inhibits a detecting part of an exhaust gas sensor from being exposed to water and has high detection accuracy and high durability. The exhaust gas sensor has a sensor body and a protective cover. The sensor body has an outer housing. The outer housing has a plurality of gas inlets. A gas detection element for detecting a component of the exhaust gas (e.g., oxygen) disposed within the outer housing. The protective cover has a cylindrical shape and has a plurality of protrusions at its opposing ends. The protrusions provide a tight fit with the outer housing. The protective cover is attached to the outer periphery of the outer housing without closing gas inlets formed through the outer cylinder by press-fitting the outer cylinder into the protective cover.

A capillary array comprising multiple capillaries and two holding substrates for arranging the aforementioned multiple capillaries in a substantially plane surface by sandwiching at least some of these capillaries mutually. One of the holding substrates has a detection window for transmitting the detected light emitted by a test sample by irradiation of light. Especially, this detection window comprises multiple light transmission areas provided to correspond to each capillary to transmit the detected light, and light cut-off areas provided between these light transmission areas to cut off the detected light. These light cut-off areas cut off light reflected from the surface of capillaries and hence improve the SN ratio, thereby ensuring high-precision detection.

The present invention discloses a shoe VOC volatilization sampling apparatus and a method. The apparatus is characterized in that the apparatus comprises an accommodation chamber, the volume of the accommodation chamber can accommodate a pair of the whole shoes, the accommodation chamber is provided with a heat conduction outer wall, comprises an openable sealing door and a gas exhaust valve, and further comprises a heater capable of heating gas in the accommodation chamber, and the gas exhaust valve and the accommodation chamber form a complete gas path. With the apparatus, rapid VOC detection with the whole shoe manner is achieved, characteristics of high precision, rapidness and convenient operation are provided, and the novel shoe VOC detection mode is established.

The invention provides spindle sleeve part inner/outer diameter detection equipment. The spindle sleeve part inner/outer diameter detection equipment comprises a work station, a pressure spring, a positioning sleeve, a sliding sleeve, a positioning mandrel, an inner diameter sensor probe, an outer diameter sensor probe and a handle, wherein the positioning sleeve and the positioning mandrel are mounted on the work station, the sliding sleeve is arranged between the positioning sleeve and the positioning mandrel, clearance fit is realized externally and internally, the positioning mandrel is arranged at a center of the sliding sleeve, a lower end of the sliding sleeve is provided with the pressure spring, the outer portion of the sliding sleeve is the positioning sleeve, the positioning sleeve is provided with a limit ring groove in a vertical direction, the limit ring groove is internally provided with the handle, the handle is connected with the sliding sleeve, and the inner sensor probe and the outer sensor probe are arranged on the positioning mandrel and the positioning sleeve. The detection equipment has properties of high display value precision and good detection data consistency, an inner diameter, an outer diameter, inner/outer circle roundness and conicity of workpieces can be detected through one-times operation, manpower cost is low, and the detection equipment is suitable for detecting dimensions, roundness and conicity of spindle sleeve circular ring products which are made through batch-scale production and have high inner-hole and outer-circle precision requirements.

The invention provides a track detection method. The track detection method comprises the steps that lasers are used for irradiating the top face and the two side faces of a track at the same time; images of the parts, irradiated by the lasers, of the track are shot; image processing is carried out on the images through image processing equipment, so that a stereoscopic skeleton map of the track is built according to the images; image processing is carried out on the stereoscopic skeleton map through the image processing equipment, so that the geometrical parameter of the track is extracted according to the stereoscopic skeleton map; the geometrical parameter of the track is compared with the geometrical parameter of a standard track, and the numerical value of undulatory wear of the track is calculated. The detection precision and detection efficiency of the undulatory wear of the track can be improved.

A temperature control apparatus for a humidity sensor is provided for preventing impurities from sticking on a sensor element, while protecting the sensor element from cracking due to the humidity sensor heated by a heater in the presence of condensation, to maintain a high detection accuracy of the humidity sensor. The temperature control apparatus is configured to control the temperature of a sensor element of a humidity sensor disposed in an exhaust passage of an internal combustion engine for detecting the humidity within the exhaust passage. The temperature control apparatus comprises a heater for heating the sensor element, a temperature sensor for detecting the temperature of the sensor element, and an ECU for controlling a heating amount of the heater to bring the detected temperature of the sensor element to a first predetermined temperature during an operation of the internal combustion engine.

The invention discloses a system used for simultaneous on-line monitoring of a plurality of heavy metals in water. The system comprises an on-line sampling module which is used for timing sampling andpretreatment, an on-line digestion module which is used for continuous on-line heat digestion, an on-line enriching module which is used for enrichment, an on-line detection module, a data processing/output module which is used for comparison analysis of detected results with corresponding water quality standard limit values, and a system control module which is used for controlling running of the above modules; the data processing/output module is connected with the on-line detection module; the system control module is connected with the on-line sampling module, the on-line digestion module, the on-line enriching module, and the on-line detection module respectively. The system is high in sensitivity, accuracy, and precision, wide in detection range; simultaneous detection of a plurality of parameters is realized, the response speed is high, and real time and dynamic change monitoring of the content of heavy metals in water is realized.

The invention relates to a bottle cap quality on-line detection system which comprises a workbench, a conveying roller way, a qualified product roller way, an unqualified product roller way, an in-place sensor, a counter, a CCD (Charge Coupled Device) camera, a way changing mechanism and a control circuit, wherein the conveying roller way is connected with the qualified product roller way and the unqualified product roller way by the way changing mechanism; the in-place sensor and the counter are mounted on the side surface of the conveying roller way by a rack; the CCD camera is mounted on the side surface of the conveying roller way by the rack; the way changing mechanism comprises a driving motor and a shifting piece; and the control circuit is electrically connected with the conveying roller way, the qualified product roller way, the unqualified product roller way, the in-place sensor, the counter, the CCD camera and the driving motor. The bottle cap quality on-line detection system is high in detection precision and field adaptability; an equipment structure is simplified greatly; the volume and the deadweight of equipment are reduced; the quality of bottle caps can be detected efficiently, conveniently, quickly and completely; and the qualified bottle caps and the unqualified bottle caps can be accurately distinguished and counted.

The double blank detecting device for a press machine uses a press machine with a die cushion device attached thereto, and automatically and repeatedly forms blank materials one by one. The double blank detecting device includes: a position signal acquiring unit that acquires a die cushion position signal indicating a position of a cushion pad of the die cushion device; a load signal acquiring unit that acquires a die cushion load signal indicating a die cushion load generated in the cushion pad of the die cushion device; and a double blank detecting unit that detects, as a double blank, a state where a plurality of the blank materials are overlapped, based on the die cushion position signal and the die cushion load signal that are acquired.

The invention relates to an unmanned vehicle driving blind area eliminating device which comprises a positioning base, a detecting post, ranging devices, a monitoring camera and a control system. Thepositioning base refers to a closed cavity structure with rectangular cross section. The front surface of the positioning base is connected with the detecting device; at least four loading surface areuniformly distributed on the front end face of the detecting device; the ranging devices are arranged on the loading surfaces. The monitoring camera is installed on the front end face of the detecting post through a pan-tilt mechanism. The control system is embedded in the positioning base and in electric connection with the ranging devices, the monitoring camera, the pan-tilt mechanism and an on-board computer respectively. The application method of the device includes two step such as installation of equipment and blind area detection. The unmanned vehicle driving blind area eliminating device has the advantages that the device is easy to control, convenient to install, high in detection and running precision, flexible and convenient to regulate, and further, the device can achieve continuous detection to obstacles according to their locations, regulate running state flexibly and realize reduction of energy consumption.

The invention provides a quantitative detection method for the absolute size of a concrete crack based on Rayleigh wave energy attenuation. The method comprises the following steps: S1, constructing a Rayleigh wave energy attenuation physical model by considering material and geometric attenuation at the same time; s2, calculating an energy attenuation ratio RA; s3, carrying out positioning, absolute size quantification and shape description of reflection points of the crack tip and the crack middle section of the concrete surface based on an improved semi-infinite space damage positioning method, and determining the positions of the crack tip and the crack middle section and the crack size and direction according to the tangent or crossed geometrical relationship of the reflection points and a positioning ellipse. According to the concrete crack absolute size quantitative detection method based on Rayleigh wave energy attenuation, on the basis of position information of crack tips and crack middle sections given by an energy attenuation model and an improved damage positioning method, detail information of more complex damage can be described with fewer sensors; and the relative dimension quantization detection system is updated to an absolute dimension quantization detection system.

The invention provides a washing machine with a micro ring and an eccentricity testing method. The washing machine comprises a housing,, an outer drum and an inner drum, wherein the outer drum and the inner drum sleeve the housing. A micro ring for testing eccentricity of the outer drum is arranged between the housing and the outer drum. The micro ring comprises a fixedly arranged outer ring, and a movable inner ring which sleeves the outer ring. The outer ring and the inner ring are concentrically arranged. The micro ring for testing eccentricity of the outer drum is arranged between the housing and the outer drum. After the outer drum vibrates to certain amplitude and arrives at the inner ring, the inner ring is driven to vibrate, and namely no concentricity between the inner ring and the outer ring is realized. The eccentricity direction of the inner ring relative to the outer ring is the eccentricity direction of the outer drum, and furthermore the eccentricity condition of the outer drum can be determined. After a random position in the circumferential direction of the outer drum contacts with the inner ring, no concentricity between the outer ring and the inner ring can be realized, thereby improving testing accuracy in eccentricity testing, improving reliability and preventing drum impact.

The invention discloses a metal removing device, which comprises a front mill, a rear conveying section, a metal detection section, a rotary cutter mechanism, an impurity removing mechanism, a front conveying section and a rear mill; a metal detection section, a rotary cutter The knife mechanism and the impurity removal mechanism are installed on the rear conveying section in a straight line, and the front conveying section and the rear conveying section are arranged obliquely upward, and the rear conveying section conveys the film extruded by the front mill uphill. The metal detection section detects whether the material contains metal, and the rotary cutter mechanism cuts off the material containing metal, and the impurity removal mechanism discharges the cut material and sends the main film to the front conveying section, and the front conveying section conveys the removed film to the rear Road to open the refining machine. The metal removing device disclosed by the invention is simple in structure, stable and efficient, can realize intelligent, high-precision, and high-efficiency removal of impurities on materials, protect the service life of the roller of the mill and the screw of the extruder, and greatly improve the refining efficiency. Glue quality.

The invention discloses a bidirectional adjustment self-suction phased array probe scanning device and an assembling and detecting method. The whole device is of a chain structure, the device comprises a probe clamping device, a plurality of component modules and an encoder. The plurality of component modules form a scanning device chain body; the probe clamping device is assembled on the left side of the scanning device chain body through a positioning shaft I; and the encoder is assembled on the right side of the scanning device chain body. The probe scanning device is adjustable in width and wide in application range; during field detection, only the upper edge of the scanning device needs to be close to the lower edge of a welding seam, the translation distance and translation parameters of the probe do not need to be adjusted and measured before each time of detection, the detection process is optimized, and the detection efficiency and the detection precision are greatly improved; the device is compact in structure, high in universality, convenient to disassemble and assemble and easy and convenient to operate.

A detection method and apparatus for a status of a parking lot in which the apparatus includes: a parking lot motion detecting unit detecting whether a moving object is in the lot according to a surveillance image of the lot; a blocking motion detecting unit, when a moving object does not exist in the lot, detecting whether a moving object exists in a blocking detection area of the parking lot in the image, where the blocking detection area is adjacent to the lot; a blocking detecting unit, when a moving object does not exist in the blocking detection area, detecting whether, in the blocking detection area, a blocking object exists blocking the parking lot; and a parking lot status determining unit determining the status of the lot according to a detection result of the blocking detecting unit.

The invention discloses a DNA (deoxyribonucleic acid) bar code. The nucleotide sequence of the DNA bar code is as shown in SEQ ID NO.1. According to the DNA bar code, an ITS sequence of a muscadine isfirstly disclosed, available molecular markers are provided for species identification of the muscadine, and the DNA bar code further comprises parts of conserved sequences and has universality whenbeing used for species identification of grapes. The invention discloses a method and a primer for preparing the nucleotide sequence of the DNA bar code and can acquire sequences of an ITS area of themuscadine. The invention further discloses a molecular identification method of the muscadine and a detection primer and a kit for identifying the muscadine. PCR (polymerase chain reaction) amplification is performed by the aid of the detection primer or the kit to obtain sequences of ITS areas of the grapes, an amplification sequence and the sequence of the DNA bar code of the muscadine are compared or applied to construction of phylogenetic trees of the grapes, so that grape varieties are accurately identified, and identifying processes are simple to operate, high in efficiency and good inrepeatability.

An object of the present invention is to accurately detect concentrations of mixtures in a fluid. An internal electrode 23 is disposed on the inner side of an external electrode 22 coaxially with the external electrode 22, and a plurality of points in the length direction of the internal electrode 23 are supported by a casing 21 via supporting members 28a and 28b. The state of a fluid S passing through a passage 26 between the external electrode 22 and the internal electrode 23 is detected based on electrostatic capacitance between the external electrode 22 and the internal electrode 23.

The invention discloses reclaimed water hazard risk on-line monitoring and evaluating equipment which comprises a CCD camera arranged over a water tank, the output end of the CCD camera is connected to the input end of a data acquisition module, and the output end of the data acquisition module is connected to the input end of a data analysis module. The output end of the data analysis module is connected to the input end of the alarm module and the input end of the cloud computing module, 56 blocks are arranged at the bottom of the water tank, and 64 induction points are arranged in the blocks. The method is suitable for detecting the harmfulness of the regenerated water in the fields of industrial wastewater, domestic wastewater, chemical wastewater, aquaculture water and the like, is wide in application range and high in detection accuracy, and can replace the conventional monitoring position.

A memory control circuit of the disclosure includes a memory control unit that controls a timing of command issuance to cause (tATP+tPTA) to be constant, where, in a memory having a plurality of banks, tATP is a period from issuance of a first ACT command to issuance of a PRE command that is directed a bank same as or different from a bank to which the first ACT command is issued, and tPTA is a period from the issuance of the PRE command to issuance of a second ACT command that is directed to a bank same as or different from the bank to which the PRE command is issued.

The invention relates to the technical field of ceramic tile flatness detection equipment, in particular to a calibration device for a displacement sensor in ceramic tile flatness detection, which comprises a horizontal table, a lifting table is arranged on the left side of the top surface of the horizontal table, and a motor is arranged on the right side of the lifting table; a lifting structure platform is arranged on the lifting platform; a high-precision grating ruler reading head is arranged on the right side of the rear face of the lifting structure platform. Two spirit bubbles are correspondingly arranged on the front side and the rear side of the left end edge of the surface of the lifting structure platform. A clamp is arranged in the middle of the top surface of the lifting structure platform, and a color standard plate is clamped on the clamp; a pillar is arranged on the left side of the rear portion of the top face of the horizontal table, a rigid structure is arranged on the top of the pillar, a laser displacement sensor is arranged on the rigid structure, and a displayer is arranged on the right side face of the laser displacement sensor; a grating ruler is arranged on the right side of the rear of the top surface of the horizontal table; the device has the advantages of convenience in use, high detection speed, high detection accuracy and the like.

The invention provides a multi-scale ceramic detection method and system. The method comprises the steps that: rapid detection is carried out on a target object, a workpiece is placed on a workbench, and photographing and detection are performed on the workpiece through a rapid detection system; and when flaws do not exist, detection is completed, a conclusion that the flaws do not exist is given, and when the flaws exist, accurate detection including a three-dimensional reconstruction technology, a trajectory planning technology and the like is adopted, so that quantitative flaw indexes are given. Compared with a traditional method, the multi-scale detection method combining rapid detection and accurate detection has the following advantages that: the influence of environmental factors on a detection result is reduced to a great extent; and the detection accuracy is effectively improved. Compared with a deep learning method, the method does not need to spend a large amount of time and cost to complete acquisition of a required data set.