36results about How to "Accurate detection time" patented technology

An apparatus and method for driving an image display device using a DMD are provided. The apparatus includes a color wheel, an optical sensor, a delay time determining unit, and a control unit. The color wheel includes a plurality of color filters and index marks formed at positions corresponding to boundary lines between the color filters, and the optical sensor detects the index marks during rotation of the color wheel and outputs detection signals. The delay time determining unit determines a delay time corresponding to a minimum margin required in a conversion of a color image signal according to the detection signal inputted from the optical sensor, and the control unit controls a DMD based on the detection signals and the delay time.

A force sensor includes a shaft to which a magnet is fixed, and a case which can reciprocate with respect to the shaft and to which a Hall IC element is fixed. The Hall IC element outputs an output voltage which changes in accordance with relative displacement between the Hall IC element and the magnet. A main spring is interposed between the shaft and the case and elastically deforms in accordance with force produced between the shaft and the case in the reciprocating direction. A sub spring is provided in order to impart a preload such that when the amount of elastic deformation of the main spring is substantially zero, no axial clearance is formed between a flange portion of the shaft and one end portion of the main spring, and no axial clearance is formed between the case and the other end of the main spring.

A rotor for an electric motor includes a base plate (13) made of a magnetic material and coupled to a rotational shaft (12), a rotor core (18) provided on the base plate (13) and including a protrusion protruding axially relative to the base plate and the teeth of the stator, the rotor core having an outer peripheral face and an axial end, a plurality of magnet insertion portions defined in the rotor core, a plurality of rotor magnets provided in the magnet insertion portions respectively, each magnet having a stator side and a counter-stator side both magnetized so as to have poles differing from each other, and a position sensor detecting a rotational position of the rotor core and disposed radially or axially opposite the outer peripheral face or the axial end of the rotor core so as to correspond to the protrusion of the rotor core.

The invention provides a belt tension regulating device of an engine for improving workability in belt replacement, by detecting a reduction amount in belt tension, early and accurately determining a time for regulating the belt tension or a time for replacing belts, and detecting a change amount of the belt tension from above or in front of the engine without cutting of the view caused by an automatic tensioner and the belt. The belt tension regulating device of an engine comprises: an accessories driving pulley connected with a clank pulley through the belt 2; a tension pulley 5 wound in the middle of the belt; and the automatic tensioner 3 in which a moving end of an actuator is connected with the tension pulley through a connection arm to change a position of a rotation center of the tension pulley and thereby to change the belt tension. An indication member attached to an moving end of the actuator, and a detection member detecting the position of the indication member are provided to determine a state of the belt tension.

The invention provides an airplane wheel gear feeding and removal time detection system and method based on ADSB. The method includes the steps that 1, ADSB data is received in real time; 2, the wheel gear feeding and removal time of an airplane is analyzed and calculated according to the ADSB data. The method has the advantages that detection of the wheel gear feeding and removal time of the airplane is achieved, and human intervention during time detection is avoided; the problem that detection standards are not uniform is solved based on ADSB data detection; calculation is carried out in real time according to the updated ADSB data, and the precision of detection of the wheel gear feeding and removal time is improved. A complete set of scheme is provided, through the scheme, passengers can know the status of the airplane, taking-off and landing time of the airplane can be provided for the passengers as soon as possible, waiting time is shortened for the passengers accordingly, service quality is improved, and the competitiveness of an airport is enhanced.

The invention discloses an in-hole cavity monitoring device and method based on multi-frequency ultrasonic scanning. The in-hole cavity monitoring device comprises a rotary driving component, an orientation component, a scanning component, a calibrating component and a reflection component. The invention further discloses an in-hole cavity monitoring method based on multi-frequency ultrasonic scanning, and aims to solve the problems of limit and low accuracy in a single-frequency ultrasonic detection range. Clear waveforms generated by selecting ultrasonic energy converters of two frequencies are comparatively analyzed in order to calculate the number of periods of ultrasonic pulse leak detection respectively, so that the transmission time detection accuracy is increased; meanwhile, the calibrating component and the reflection component are adopted in order to measure a sound speed in an environmental medium to realize high-accuracy measurement of a wave speed; lastly, distance values measured by the ultrasonic energy converters of two frequencies are averaged to obtain an accurate distance. The in-hole cavity monitoring device and method have the advantages of skillful design, strict concept, simple structural system, and easiness in implementation.

An ultrasonic wave detection apparatus includes a transmission unit which transmits ultrasonic waves at a first frequency and a second frequency, a reception unit which receives ultrasonic waves transmitted from the transmission unit, and a control unit which causes the transmission unit to transmit ultrasonic waves at the first frequency and causes the reception unit to receive the first frequency ultrasonic waves to obtain a detection timing of a peak value of a n-th wave of the received first frequency ultrasonic waves, causes the transmission unit to transmit ultrasonic waves at the second frequency and causes the reception unit to receive the second frequency ultrasonic waves to obtain a detection timing of a peak value of a n-th wave of the received second frequency ultrasonic waves, and specifies “n” of the n-th wave from which the peak value is detected based on a difference in the detection timings.

A photon detector includes a sensor array of optical sensors disposed in a plane and four substantially identical scintillation crystal bars. Each optical sensor is configured to sense luminescence. Each of the four scintillator crystal bars being a rectangular prism with four side surfaces and first and second end surfaces, each scintillation bar has two side surfaces which each face a side surface of another scintillation bar, and each scintillation crystal bar generating a light scintillation in response to interacting with a received gamma photon. A first layer (80) is disposed in a first plane disposed between and adjacent facing side surfaces of the four substantially identical scintillation crystal bars with a light sharing portion (82) adjacent the first end surface and a reflective portion (84) adjacent the second end surface. A second layer (68) is disposed in a second plane orthogonal to the first plane and disposed between and adjacent facing side surfaces of the four substantially identical scintillation crystal bars with a light sharing portion (88) adjacent the second end surface and a reflective portion (90) adjacent the first end surface.

The invention discloses a power distribution network power quality disturbance detection method based on EWT and MFDE, and the method comprises the steps: extracting a PQ disturbance signal in an active power distribution network system, and carrying out the preprocessing; using empirical wavelet decomposition (EWT) to perform modal decomposition on the preprocessed PQ disturbance signal to obtain an intrinsic mode function (BLIMF) containing feature information; using the intrinsic mode function BLIMF containing feature information as the input of a multi-scale oscillation dispersion entropyMFDE algorithm, employing the multi-scale oscillation dispersion entropy MFDE algorithm to carry out the dispersion entropy calculation of the intrinsic mode functions BLIMF obtained through mode decomposition, and obtaining the multi-dimensional entropy vector of the PQ disturbance signal under each intrinsic mode function BLIMF through calculation; carrying out PCA dimension reduction accordingto the obtained entropy vector, and then taking the result as an input quantity of an SVM algorithm; and carrying out PQ disturbance signal identification on the active power distribution network system containing the distributed energy. According to the method, each disturbance in the composite power quality disturbance can be accurately detected and classified, the classification is accurate, and the method has certain anti-noise capability.

The invention relates to a quantitative detection card, a preparation method thereof and a detection method. The quantitative detection card comprises a bottom card and a surface card. The bottom card is provided with a sample application region, a bonding region, a micro-channel, a time valve, a detection region and a waste liquid region. The sample application region is connected with the bonding region. The sample application region and the bonding region are located at one end of the micro-channel. The detection region is connected with the other end of the micro-channel through the time valve. The surface card is provided with a sample application hole and an observation hole. The position of the sample application hole is corresponding to the position of the sample application region on the bottom card. Based on the immunofluorescence technique, the variation of an antibody at different time is detected. After that, the detection result is converted into the concentration of anti-17 alpha-hydroxyprogesterone antibody, the concentration of anti-luteinizing hormone antibody and the concentration of anti-follicle-stimulating hormone antibody in a to-be-detected sample according to a variation curve, so that the quantitative detection level is realized. The quantitative detection card, the preparation method thereof and the detection method have the advantages of simple operation, short detection time, simple storage, easy popularization and easy usage.

A γ-ray signal processing section 60′ determines a detection time of a γ ray based on a α-ray detection signal outputted from a semiconductor radiation detector for detecting the γ ray, and determines the energy of the γ ray. Then, a time correction circuit 70 obtains, based on the energy of the γ ray, a detection value of the detection time that corresponds to the energy of the γ ray from a time correction table indicating the relationship between the energy of the γ ray and the correction value of the detection time of the γ ray, and corrects the detection time according to the obtained correction value of the detection time. Coincidence counting is performed on the γ ray in a coincidence counting circuit 80 based on the corrected detection time.

An optical scanning device has a light deflector deflecting a light beam from a light source, a synchronization detection sensor determining timing of starting scanning in main scanning direction based on timing of detecting the light beam scanned in main scanning direction by the light deflector, and a pre-sensor imaging optical system imaging the light beam reflected from the light deflector on the synchronization detection sensor. The pre-sensor imaging optical system moves the imaging position of the light beam on the synchronization detection sensor in a direction making the timing of detecting the light beam earlier or later according to whether variation in temperature causes the magnification of the scanning optical system in main scanning direction to increase or decrease respectively.

The invention discloses a gynecological tumor cell combined quantitative detection card, a preparation method thereof, and a using method thereof. The gynecological tumor cell combined quantitative detection card comprises a bottom card and a surface card; the bottom card is provided with a sample adding zone, bonding zones, microchannels, time valves, detection zones, and waste liquid zones, wherein the sample adding zone is positioned at one end of the microchannels, the bonding zones are connected with the multiple detection zones through the microchannels and the time valves and are positioned at the other end of the microchannels, the waste liquid zones are connected to the sample adding zone through the microchannels, and the bottoms of the bonding zones and the detection zones are both parallelly connected with the microchannels; and the microchannels are connected with the time valves. According to the gynecological tumor cell combined quantitative detection card, the preparation method thereof, and the using method thereof,the flow rate and the flow quantity of a to-be-tested sample are controlled by the microfluidic technology, gynecological tumor cells with the same marker enter the detection zones through a microchannel, so that mutual interference is avoided, thus the error is reduced, and reaction sensitivity is increased; and the to-be-tested sample is prepared into water-in-water micro-droplets, so that the detection limit is increased.

An ultrasonic wave detection apparatus includes a transmission unit which transmits ultrasonic waves at a first frequency and a second frequency, a reception unit which receives ultrasonic waves transmitted from the transmission unit, and a control unit which causes the transmission unit to transmit ultrasonic waves at the first frequency and causes the reception unit to receive the first frequency ultrasonic waves to obtain a detection timing of a peak value of a n-th wave of the received first frequency ultrasonic waves, causes the transmission unit to transmit ultrasonic waves at the second frequency and causes the reception unit to receive the second frequency ultrasonic waves to obtain a detection timing of a peak value of a n-th wave of the received second frequency ultrasonic waves, and specifies “n” of the n-th wave from which the peak value is detected based on a difference in the detection timings.

An analysis system includes: an electronic device that is attached to an upper body of a swimmer; and an analysis apparatus. The electronic device includes: an acceleration sensor that detects acceleration in a gravity direction in a state where the swimmer stands erect; and a first communication unit that transmits acceleration data indicating the acceleration detected by the acceleration sensor to the analysis apparatus. The analysis apparatus includes: a second communication unit that receives the acceleration data from the electronic device; and a control unit that determines whether the swimmer is in a swimming state or the swimmer is in a resting state, based on the acceleration data received by the second communication unit.

A DMB(Digital Multimedia Broadcasting) receiving apparatus and a method for measuring a recording time and a reproducing time in the DMB receiving apparatus are provided to more accurately measure the recording time and the reproducing time necessary for recording or reproducing a DMB audio / video signal by measuring the recording time and the reproducing time in each terminal in consideration of a receiving state of a transmission stream. A system decoder(10) decodes a DMB transmission stream, and outputs an AU(Access Unit) according to the decoded DMB transmission stream. An AU counter(40) counts the AU outputted from the system decoder(10). An A / V decoder(20) performs the A / V decoding of the AU outputted from the system decoder(10), parses the A / V decoded AU, and outputs an A / V frame according to the parsed AU. A frame counter(50) counts the A / V frame outputted from the A / V decoder(20).

The invention relates to an image processing box in an electronic photographic imager. The image processing box comprises a development unit and a photosensitive drum box, wherein the photosensitive drum box is detachably assembled with the development unit; the image processing box further comprises a coding device for transmitting state identification information to the electronic photographic imager, which the coding device consists of a plane mechanism; and linear reciprocating motion of a signal shading sheet in the coding device is realized by the rotating action of a driving gear. By adopting the technical scheme, the plane mechanism device is adopted in the coding device, and the motion loci of the composition members of the plane mechanism device have high accuracy, so that the detection time that the non-transparent shading sheet passing through a code reader in the set time is more accurate; and compared with a coding wheel device driven by a torsion spring coupling device,the image processing box can be accurately identified all the time and effectively operated is ensured more accurately and effectively.

The invention relates to an image processing box in an electronic photograph imaging machine, which comprises a developing unit, a photosensitive drum box and an encoding device for transmitting state identifying information to the electronic photograph imaging machine, wherein the photosensitive drum box and the developing unit are assembled detachably; and the encoding device is formed by a plane mechanism, and a signal barrier sheet in the encoding device makes linear reciprocating motion under the rotating action of a driving gear. As the technical scheme is adopted by the invention, a plane mechanism device is adopted in the encoding device, and the motion trails of the components have high accuracy, so the detection time that the non-transparent barrier sheet passes through a code reader within set time is more accurate, and compared with an encoding wheel device driven by a torsional spring coupling device, the image processing box always can be identified correctly and can be operated effectively.

The invention relates to a quantitative detection card, a preparation method thereof and a detection method. The quantitative detection card comprises a bottom card and a surface card. The bottom card is provided with a sample application region, a bonding region, a micro-channel, a time valve, a detection region and a waste liquid region. The sample application region is connected with the bonding region. The sample application region and the bonding region are located at one end of the micro-channel. The detection region is connected with the other end of the micro-channel through the time valve. The surface card is provided with a sample application hole and an observation hole. The position of the sample application hole is corresponding to the position of the sample application region on the bottom card. Based on the immunofluorescence technique, the variation of an antibody at different time is detected. After that, the detection result is converted into the concentration of anti-17 alpha-hydroxyprogesterone antibody, the concentration of anti-luteinizing hormone antibody and the concentration of anti-follicle-stimulating hormone antibody in a to-be-detected sample according to a variation curve, so that the quantitative detection level is realized. The quantitative detection card, the preparation method thereof and the detection method have the advantages of simple operation, short detection time, simple storage, easy popularization and easy usage.

The invention provides an airplane wheel gear feeding and removal time detection system and method based on ADSB. The method includes the steps that 1, ADSB data is received in real time; 2, the wheel gear feeding and removal time of an airplane is analyzed and calculated according to the ADSB data. The method has the advantages that detection of the wheel gear feeding and removal time of the airplane is achieved, and human intervention during time detection is avoided; the problem that detection standards are not uniform is solved based on ADSB data detection; calculation is carried out in real time according to the updated ADSB data, and the precision of detection of the wheel gear feeding and removal time is improved. A complete set of scheme is provided, through the scheme, passengers can know the status of the airplane, taking-off and landing time of the airplane can be provided for the passengers as soon as possible, waiting time is shortened for the passengers accordingly, service quality is improved, and the competitiveness of an airport is enhanced.

The invention provides a belt tension regulating device of an engine for improving workability in belt replacement, by detecting a reduction amount in belt tension, early and accurately determining a time for regulating the belt tension or a time for replacing belts, and detecting a change amount of the belt tension from above or in front of the engine without cutting of the view caused by an automatic tensioner and the belt. The belt tension regulating device of an engine comprises: an accessories driving pulley connected with a clank pulley through the belt 2; a tension pulley 5 wound in the middle of the belt; and the automatic tensioner 3 in which a moving end of an actuator is connected with the tension pulley through a connection arm to change a position of a rotation center of the tension pulley and thereby to change the belt tension. An indication member attached to an moving end of the actuator, and a detection member detecting the position of the indication member are provided to determine a state of the belt tension.

The invention discloses an electronic nose used for detecting maturity of cherimoya and a detection method of the electronic nose. The electronic nose used for detecting the maturity of the cherimoya comprises a power supply, 8 different sensors, a signal collecting and processing unit, a box body and two air pumps. The detection method comprises the following steps that: (1) an initial value Vs of a response characteristic value of each sensor is extracted; (2) cherimoya samples are collected and volatilized fully into a container; (3) a steady value Ve of the response characteristic value of each sensor is extracted by the signal collecting and processing unit and the time Ti from detection starting to response achieving the steady value is recorded to obtain climbing speed; (4) characteristic parameter Amature of maturity of cherimoya is calculated and obtained by a nonlinear stochastic resonance model; and (5) Amature is associated with a critical value of the maturity of cherimoya to obtain the result of maturity of cherimoya. Due to the adoption of the electronic nose and the detection method, the maturity of the cherimoya can be rapidly, conveniently and accurately detected.

The invention discloses a brain malignant tumor cell combined quantitative detection card, a preparation method thereof, and a using method thereof. The brain malignant tumor cell combined quantitative detection card comprises a bottom card and a surface card; the bottom card is provided with a sample adding zone, bonding zones, microchannels, time valves, detection zones, and collection zones, wherein the sample adding zone is positioned at one end of the microchannels, the bonding zones are connected with the one or more detection zones through the microchannels and the time valves and are positioned at the other end of the microchannels, and the detection zones are connected with the collection zones through the microchannels; a plurality of sample adding cavities are formed in the sample adding zone, the sample adding cavities are cylindrical microchannels, and the bottoms of the sample adding cavities are directly connected to the bonding zones. According to the brain malignant tumor cell combined quantitative detection card, the preparation method thereof, and the using method thereof,the flow rate and the flow quantity of a to-be-tested sample are controlled by the microfluidic technology, brain malignant tumor cells with the same marker enter the detection zones through a microchannel, so that mutual interference is avoided, thus the error is reduced, and reaction sensitivity is increased; and the to-be-tested sample is prepared into water-in-water micro-droplets, so that the detection limit is increased.

The invention discloses a GIS partial discharge detection method, a GIS partial discharge detection device, a medium and terminal equipment. The method comprises the following steps: acquiring the time when a plurality of pulses arrive at each sensor and a discharge pulse waveform; respectively calculating the distance between the discharge source corresponding to each pulse and each sensor according to the time when each pulse reaches each sensor; selecting a plurality of GIS internal discharge pulses generated by non-external interference signals from the plurality of pulses by combining the PRPD atlas of each pulse obtained from the discharge pulse waveform and the partial discharge signal amplitude; and drawing a positioning result distribution diagram corresponding to each sensor according to the distance between a discharge source corresponding to the plurality of GIS internal discharge pulses and each sensor, and determining a GIS partial discharge detection result according to the positioning result distribution diagram. By adopting the embodiment of the GIS partial discharge detection method provided by the invention, a plurality of pulses can be positioned at the same time and different types of pulses can be identified.