122results about How to "Detection accuracy meets" patented technology

A polishing pad enabling a highly precise optical endpoint sensing during the polishing process and thus having excellent polishing characteristics (such as surface uniformity and in-plane uniformity) is disclosed. A polishing pad enabling to obtain the polishing profile of a large area of a wafer is also disclosed. A polishing pad of a first invention comprises a light-transmitting region having a transmittance of not less than 50% over the wavelength range of 400 to 700 nm. A polishing pad of a second invention comprises a light-transmitting region having a thickness of 0.5 to 4 mm and a transmittance of not less than 80% over the wavelength range of 600 to 700 nm. A polishing pad of a third invention comprises a light-transmitting region arranged between the central portion and the peripheral portion of the polishing pad and having a length (D) in the diametrical direction which is three times or more longer than the length (L) in the circumferential direction.

A communication system comprises a downlink data channel for the transmission of data packets from a primary station to a secondary station and two uplink control channels, a first channel for transmission of status signals to indicate the status of received data packets and a second channel for transmission of pilot information. In operation, on detection (402) of a data packet the secondary station increases (404) the transmission power of the second channel, thereby enabling the primary station to obtain a better estimate of uplink channel properties and hence increase the accuracy with which it can decode the status signal. The secondary station transmits (406) the status signal, typically either an acknowledgement (ACK) or negative acknowledgement (NACK), and decreases (408) the transmission power of the second control channel signal. The increase and decrease in power are not necessarily identical, for example as a result of the effects of power control.

A technique of detecting a slip of a robot using a particle filter and feature information of a ceiling image is disclosed. A first position of the robot is computed using a plurality of particles, a second position of the robot is computed using the feature information of the ceiling image, and whether a slip has occurred is determined based on a distance between the first position and the second position.

A communication system comprises a downlink data channel for the transmission of data packets from a primary station to a secondary station and two uplink control channels, a first channel for transmission of status signals to indicate the status of received data packets and a second channel for transmission of pilot information. In operation, on detection (402) of a data packet the secondary station increases (404) the transmission power of the second channel, thereby enabling the primary station to obtain a better estimate of uplink channel properties and hence increase the accuracy with which it can decode the status signal. The secondary station transmits (406) the status signal, typically either an acknowledgement (ACK) or negative acknowledgement (NACK), and decreases (408) the transmission power of the second control channel signal. The increase and decrease in power are not necessarily identical, for example as a result of the effects of power control.

The invention relates to a global information system (GIS) partial discharge on-line monitoring calibration instrument and a configuration authentication method thereof. The calibration instrument is provided with a pulse signal source and a transmitting antenna. When the pulse signal source replacing a high-voltage conductor spike model injects signals of a simulation partial discharge source through an external sensor as the transmitting antenna into a GIS cavity, the calibration instrument carries out checking on sensitivity of a partial discharge ultra high frequency (UHF) detecting device in the process that the partial discharge UHF detecting device detects the signals on line on the basis of an ultrahigh frequency method. The configuration authentication method includes the steps of testing time domain waveform and spectrum characteristics of a UHF signal model radiated by a typical discharge source inside a GIS, providing technical parameters of the pulse signal source, injecting the pulse signals into the high-voltage conductor spike model on an entity GIS platform, injecting pulse signals into the GIS cavity through an internal sensor and the external sensor, and then carrying out equivalent checking.

A dynamic quantity sensor includes a force receiving portion, a first movable portion that rotates in a first rotational direction around a first rotational axis according to dynamic quantity in a first direction that the force receiving portion receives, and rotates in the first rotational direction around the first rotational axis according to dynamic quantity in a second direction different from the first direction that the force receiving portion receives; and a second movable portion that rotates in a second rotational direction around a second rotational axis according to the dynamic quantity in the first direction that the force receiving portion receives, and rotates in an opposite direction to the second rotational direction around the second rotational axis according to the dynamic quantity in the second direction that the force receiving portion receives.

Detection accuracy of X-ray dosages, to be applied to control the amount of irradiated X-rays, is improved in a mammography apparatus that employs solid state detectors as X-ray image detecting means, and that is capable of interchangeably utilizing solid state detectors of various sizes, without adversely influencing detection of images by the solid state detector. A solid state detector, for recording image information by receiving irradiation of X-rays that bear the image information, and for outputting image signals that represent the recorded image information, an X-ray dosage detector, for detecting the amount of irradiated X-rays, and a moving grid, for removing scattered radiation, are housed within a detecting unit, stacked in this order. The detecting unit is configured to be removably attachable to an imaging table of a mammography apparatus. Thereby, interchangeable use of detecting units having solid state detectors of various sizes housed therein is enabled.

The invention relates to a printing plate quality detection system and method. The system comprises a detection platform, an electric device, an image acquisition device and an image processing device, wherein the image acquisition device comprises an annular optical imaging light source, an area-array camera and a laser displacement sensor; the annular optical imaging light source comprises an annular frame body, a heat radiation sheet arranged on the outer side wall of the annular frame body and a plurality of LED (Light Emitting Diode) light sources arranged on the inner wall of the annular frame body; the annular optical imaging light source is used for uniformly illuminating in a focal plane of the area-array camera; the area-array camera is used for automatically scanning a detection object which is horizontally arranged on the detection platform under the irradiation of the annular optical imaging light source to acquire a high-quality image in the horizontal plane and carry out image pattern detection; the area-array camera or the laser displacement sensor is used for acquiring the depth of the detection object in the vertical direction so as to carry out depth measurement; the image processing device is used for carrying out data processing and analysis on image information to finish the quality detection. The system and the method have the advantages of high detection precision, high detection speed and high reliability.

The invention discloses application of a high-pass DNA (Deoxyribonucleic Acid) sequencing method on determination of a short tandem repeat gene locus in human genome and a method, belonging to the technical field of biology. The method comprises the following steps of: preparing a multi-sample gene locus proliferation sublibrary; sequencing high-pass DNA; and analyzing data and reporting the result. According to the application and the method disclosed by the invention, the high-pass DNA sequencing technology is applied to determination of the human short tandem repeat (STR) gene locus for the first time and the resolving power and the sensitivity of the STR locus as individual human recognition are remarkably improved; and meanwhile, the detection pass of the STR is greatly improved.

The present invention relates generally to assembly techniques. According to the present invention, the alignment and probing techniques to improve the accuracy of component placement in assembly are described. More particularly, the invention includes methods and structures to detect and improve the component placement accuracy on a target platform by incorporating alignment marks on component and reference marks on target platform under various probing techniques. A set of sensors grouped in any array to form a multiple-sensor probe can detect the deviation of displaced components in assembly.

The invention discloses an automatic tool changer comprehensive performance detection test stand, and belongs to the field of numerical control machine tool functional unit performance detection. The automatic tool changer comprehensive performance detection test stand integrates the mechanical technology and the sensor technology and virtual instruments, and accomplishes detection of all the following performances: tool change time, output shaft positioning accuracy (tool-capture-in-place accuracy, tool-change-in-place accuracy, returning accuracy, linear displacement accuracy and repetitive positioning accuracy), mechanical arm vibration, ATC operation stability, tool change success rate, globoidal indexing cam mechanism comprehensive indexing accuracy and dynamic characteristics. The technical problem that positioning accuracy is difficult to detect due to the fact that compound motion (rotary motion and linear motion) of the output shaft is solved by a positioning component of an encoder A; input and output parameters of a globoidal indexing cam mechanism are directly detected by the encoder A and an encoder B, and the comprehensive indexing accuracy and the dynamic characteristic detection accuracy of the globoidal indexing cam mechanism are improved. The automatic tool changer comprehensive performance detection test stand provides a comprehensive performance detection scheme for a professional manufacturing plant, and has significant practical meanings for a functional unit professional manufacturing plant.

A torque detection device includes an enclosure, at least one toque-strain bar, at least one adaptor, a coupler, at least one strain gauge, and a torque display unit. The toque-strain bar is enclosed by the enclosure and has opposite ends respectively forming coupling terminals for coupling with the adaptor and the coupler in either direction. The adaptor is connectable to a torque device, such as a hand tool, an electric tool, or a pneumatic tool. The coupler is connectable to a tool piece, such as a wrench socket. The strain gauge is directly mounted to the toque-strain bar to detect the value of a torque applied thereto and to convert the torque value into a torque value signal, which can be outputted in either wired or wireless manner. The torque display unit is mounted to the enclosure and receives the torque value signal from the stain gauge, whereby the torque display unit may perform displaying of torque value, alarming, and storage according to the torque value signal.

The invention provides a flaw detecting device of transparent material. A first and second polarization plates are arranged above and below the film in orthogonal polarization mode. A projector irradiates light through the first polarization plate and a light receiving device receives light from the second polarization plate, therefore the flaw of the film is detected. A band filter is set between the first polarization plate and projector. The band filter removes the light of wave band below 420nm and above 700nm. There is no light of needless wave band into the light receiving device, thus the flaw detecting accuracy is increased.

The present invention relates to a device and a method for the detection of a charging voltage of at least one rechargeable battery comprising a voltage converter for converting the charging voltage of the at least one rechargeable battery into a voltage signal, an analog / digital converter for converting the voltage signal of the voltage converter into a digital signal, and an evaluation and control device for evaluating the digital signal of the analog / digital converter as well as for controlling the charging process of the at least one rechargeable battery on the basis of the evaluation of the digital signal of the analog / digital converter. The voltage converter comprises an amplifier circuit with a variable gain controlled by at least one control output terminal of the evaluation and control device such that the gain applied for the generation of the voltage signal is adjusted to the input voltage range of the analog / digital converter according to a transfer function.

The invention provides a device for hydrophobicity detection and aging evaluation of a composite insulator based on ultraviolet optical characteristics of liquid drop discharge. On the premise of guaranteeing safe operation of electric transmission and transformation equipment, the ultraviolet optical characteristics of discharge of liquid drops on the surface of the composite insulator are obtained effectively and used for reflecting the existing state and distribution of the liquid drops on the surface of the composite insulator and the aging conditions of the composite insulator, and corresponding aging evaluation criteria are provided. By means of the device, hydrophobicity reducing factors causing external insulation flashover accidents can be subjected to early detection and diagnosis, the resolution and accuracy of surface hydrophobicity detection of the composite insulator are improved, and continuity and reliability of power supply and distribution of an electric power system are effectively guaranteed.

An X-ray image acquiring system capable of improving the detection accuracy of a foreign substance contained in a subject is provided. An X-ray image acquiring system 1 irradiates X-rays to a subject S having a predetermined thickness W from an X-ray source, and detects X-rays transmitted through the subject S in a plurality of energy ranges. The X-ray image acquiring system 1 includes a low-energy detector 32 for detecting, in a low-energy range, X-rays having been transmitted through a region R1 extending in a thickness direction within the subject S, a high-energy detector 42 for detecting, in a high-energy range, X-rays having been transmitted through a region R2 extending in a thickness direction within the subject S, and a timing control section 50 for controlling detection timing of X-rays in the low-energy detector 32 and the high-energy detector 42 so that an inspecting region E located at a predetermined site within the subject S is included in the region R1 and the region R2.

This invention relates to one clock test method and device, which comprises the following steps: firstly generating meter energy signals according to local timing mechanism and the meter can transfer the tested signals into the clock zone to be tested to generate clock timer energy signals of zero and triggering the tested clock zone meter by signal and to start metering at fixed time circle; observing meter results to judge the accuracy of the clock to be tested.

The invention provides a method for hydrophobicity detection and aging evaluation of a composite insulator based on the ultraviolet optical characteristics of liquid drop electric discharge. According to the method, on the premise that safe operation of electric transmission and transformation equipment is guaranteed, the ultraviolet optical characteristics of liquid drop electric discharge on the surface of the composite insulator are effectively obtained and are used for reflecting the existing state and the distribution of the surface liquid drop of the composite insulator and the aging condition of the composite insulator, a corresponding aging evaluation basis is provided, hydrophobicity lowering factors causing an external insulation flashover accident can be detected and judged early, the definition and the accuracy of the surface hydrophobicity detection of the composite insulator are improved, and the continuity and the reliability of power supply and distribution of a power system are effectively guaranteed.

A physical quantity detection circuit includes a filter circuit, and a synchronous detection circuit that is provided at a downstream of the filter circuit and detects a signal in response to a physical quantity contained in an output signal of a vibrating element based on a drive signal for driving the vibrating element. The filter circuit has a cutoff frequency between a resonance frequency in a drive mode and a resonance frequency in a detection mode of the vibrating element and contains the resonance frequency in the drive mode in a passband.

A full charge control apparatus includes a temperature detection accuracy decision unit and a full charge decision unit. The temperature detection accuracy decision unit detects an engine speed, a vehicle speed and an ambient temperature and, based on these surrounding conditions, determines whether the difference between the temperature of the battery estimated from a measurement by a temperature sensor and a true battery temperature falls within a specified accuracy range. If the battery temperature measurement accuracy is not within the specified range, the criteria for judging the fully charged state of the battery are modified to ensure that the battery will not be under-charged.

The invention discloses an intelligent full-automatic hot-melting button wrapping machine. The intelligent full-automatic hot-melting button wrapping machine comprises a frame and is characterized inthat a winding mechanism, a thread pulling and breaking mechanism, a thread melting and fixing mechanism and a drive device are arranged in the frame, a control system in control connection with the drive device is arranged on the frame, a spool seat for mounting a spool is arranged on the frame, a button wrapping thread tightness adjuster is arranged between the spool seat and the winding mechanism, a thread breaking detecting alarm device is arranged between the button wrapping thread tightness adjuster and the winding mechanism, and the output end of the thread breaking detecting alarm device is connected with the control system. The intelligent full-automatic hot-melting button wrapping machine the thread breaking detecting alarm device is arranged on the frame, the thread breaking detecting alarm device transmits thread breaking information to the control system when the button wrapping thread entering the winding mechanism breaks to guarantee that the machine stops working duringthread breaking, the thread breaking detecting alarm device can also emits notification to notify staff immediately after the thread breaking occurs, and manpower and material resource waste can be avoided.

A dynamic quantity sensor includes a force receiving portion, a first movable portion that rotates in a first rotational direction around a first rotational axis according to dynamic quantity in a first direction that the force receiving portion receives, and rotates in the first rotational direction around the first rotational axis according to dynamic quantity in a second direction different from the first direction that the force receiving portion receives; and a second movable portion that rotates in a second rotational direction around a second rotational axis according to the dynamic quantity in the first direction that the force receiving portion receives, and rotates in an opposite direction to the second rotational direction around the second rotational axis according to the dynamic quantity in the second direction that the force receiving portion receives.

A three-dimensional printer with detecting printing accuracy and a method for detecting printing accuracy is provided. The three-dimensional printer with printing accuracy detection includes a three-dimensional model conversion unit, a printing path locating unit, a printing path drawing unit, and a comparison unit. An actual printing path is drawn according to the real-time captured location information of a nozzle head of the three-dimensional printer and compared with a predetermined printing path, which may implement the detection of printing accuracy. The method for detecting printing accuracy may implement the accuracy detection of the three-dimensional printer and be capable of detecting the accuracy for the three-dimensional printer. The method for detecting printing accuracy also reminds an operator to check and maintain printing accuracy of the three-dimensional printer.

A biological information detector includes a light-emitting part, a light-receiving part, a reflecting part, and a substrate. The light-receiving part is for receiving light having biological information, where the light is emitted by the light-emitting part and reflected at a detection site of a test subject. The reflecting part is for reflecting the light emitted by the light-emitting part or the light having biological information. The substrate has a first surface and a second surface facing the first surface, formed from a material that is transparent with respect to a wavelength of the light emitted by the light-emitting part, at least one of the first surface and the second surface of the substrate has a light-blocking region containing wiring leading to at least the other of the light-emitting part and the light-receiving part.

A WDM signal light monitoring apparatus includes an optical delay interference circuit, a demultiplexer and a determiner. The optical delay interference circuit demultiplexes a phase-modulated WDM signal light, gives a delay difference to the demultiplexed WDM signal lights, then multiplexes the demultiplexed WDM signal lights, and thereby generates an intensity-modulated WDM signal light. The demultiplexer demultiplexes the intensity-modulated WDM signal light into signal lights of respective channels, and outputs the demultiplexed signal lights. The determiner determines the presence or absence of the signal light of each of the channels, based on the signal lights outputted from the demultiplexer.