60results about How to "Avoid compensation" patented technology

The invention discloses a two-dimensional and three-dimensional integrated imaging measurement system, which is characterized by being composed of an astigmatism automatic focusing unit, a light source unit, a Linnik interference unit and an image receiving unit. According to the two-dimensional and three-dimensional integrated imaging measurement system, disclosed by the invention, a fixed system framework is used for integrating a plurality of advanced imaging technologies so as to efficiently meet various precise measurement requirements; the two-dimensional and three-dimensional integrated imaging measurement system is mainly applied to testing of two-dimensional geometrical parameters of a micro-part structure, detecting of the machining, the quality and the surface appearance of MEMS (Micro-electromechanical Systems), IC (Integrated Circuit) and optical micro-devices, and medical measurement of biological tissues and the like.

A system and method for simultaneously acquiring PET and MR data from a subject of interest with a hybrid PET-MR scanner includes monitoring transmission times of RF and gradient coils of the MR equipment and blanking segments of the PET data stream accordingly. By excluding PET data acquired during active MR transmissions, the remaining PET data used for image reconstruction will provide improved PET image quality.

Active Force measuring device for measuring a force impact onto a ferromagnetic object comprising a flux concentrator having a first and second ends facing the ferromagnetic object to me measured, a magnetic field generation coil arrangement being wound around the flux concentrator, wherein the magnetic field generating coil arrangement is adapted for generating a magnetic field having a main generating direction between the first end and the second end, and a magnetic field sensing arrangement, wherein the magnetic field sensing arrangement is arranged between the first end and the second end.

A system and method for simultaneously acquiring PET and MR data from a subject of interest with a hybrid PET-MR scanner includes monitoring transmission times of RF and gradient coils of the MR equipment and blanking segments of the PET data stream accordingly. By excluding PET data acquired during active MR transmissions, the remaining PET data used for image reconstruction will provide improved PET image quality.

The invention provides a method and device for calculating sound compensation parameters as well as a sound compensation system. The device for calculating the sound compensation parameters comprises a perception loudness calculating unit, a frequency point compensation grain calculating unit and a band compensation grain calculating unit, wherein the perception loudness calculating unit is used for calculating the perception loudness of a user to an appointed test voice under the appointed strength; the frequency point compensation grain calculating unit is used for determining a frequency point in the compensation parameters according to the comparison between the perception loudness of the user and the perception loudness of a normal person and calculating a compensation grain on the determined frequency point under the pre-set strength; and the band compensation grain calculating unit is used for expanding the calculated compensation grain on the frequency point to obtain the compensation grain aiming at the user and each pre-set strength of a whole band, and taking the expanded compensation grain as the sound compensation parameters. According to the invention, by using the compensation parameters customized aiming at the user to carry out the compensation, the perception ability and communication ability of the user are improved. The method and device for calculating the sound compensation parameters as well as the sound compensation system are suitable for hearing-aids, televisions, cell phones, music players and the like.

The invention discloses a normal displacement and angle sensing optical measuring head and a measuring method thereof, optical measuring head laser light which is sent out by a semiconductor laser sequentially passes through a spectro-grating, a spectroscope and a reflecting mirror to be collimated into the collimated light beam, and the collimated light beam is reflected via a right-angle prism to enter a microobjective; the light beam which is reflected by an object to be measured returns back according to the same way to the spectroscope, and then is focused on a four-quadrant detector through an astigmatic lens; and laser light which is sent out by an infrared laser light source sequentially passes through a light guide optical fiber, a collimating lens and a focus lens to be focused on an infrared reflecting mirror to form a focus point which is superposed with the front focus of the microobjective, the infrared laser light is vertically reflected into the microobjective through the infrared reflecting mirror, the parallel infrared laser beam which is exited from the microobjective is reflected to the microobjective through the object to be measured, and an infrared beamsplitter reflects the returned infrared laser beam onto a two-dimensional phase-sensitive detector (PSD). The measuring head and the measuring method thereof can be effectively used for geometrical error measurement and calibration of the three freedom degrees of a linear guide rail, surface topographic reconstruction of a free-form surface and the like.

The invention provides a water abrasive drilling construction method for a manual hole digging pile, and belongs to the field of pile foundation construction methods. An explosion technology can be prevented from being adopted, a free face is formed through water abrasive drilling, and the defects that hole wall damage is caused by explosion and the hole diameter is not likely to be controlled are effectively avoided. The water abrasive drilling construction method comprises the steps of wellbay construction, pile foundation digging and the like, and water abrasive drilling construction is adopted when pile hole digging is carried out in intensely weathered and intermediary weathered rock strata. The water abrasive drilling construction method can be used in construction of the manual hole digging pile.

A fabrication process of a stepped circuit board, comprises the following steps of: A) cutting a circuit board substrate, printing patterns on an inner layer thereof, performing etching, stepped groove grinding, washer milling, brownification and lamination processing on the inner layer, and then drilling holes on an outer layer thereof; B) depositing copper on the outer layer of the circuit board substrate with drilled holes, and then electroplating the entire circuit board substrate; C) performing pattern transfer; D) performing pattern copper plating on the circuit board substrate, and grinding the shape of a connecting piece (SET) on the circuit board substrate, and then etching the outer layer; E) printing a solder mask and texts in a silk-screen manner; F) depositing nickel immersion gold on the entire substrate, then printing characters in a silk-screen manner; and G) testing and inspecting the electrical performance and appearance of a finished board.

The present invention relates to a radiographic imaging apparatus and a corresponding radiographic imaging method. The proposed apparatus comprises an X-ray source (20, 108) and a photon counting X-ray detector (40, 110). The X-ray source (20, 108) comprises a rotary X-ray anode (23) having a number of radial slits and a target layer provided on a surface of said rotary X-ray anode in between said radial slits for emitting X-ray radiation when hit by said electron beam. The said photon counting X-ray detector (40, 110) comprises a persistent current sensing and correction unit (70) for sensing a persistent output current in a blanking interval during which no X-ray radiation is emitted by said X-ray source and for using the sensed persistent output current to correct a detector signal in a subsequent measurement interval during which X-ray radiation is emitted by said X-ray source.

Transoral obesity treatment devices and related methods for operation thereof are described which occupy space within a stomach and / or stimulate the stomach wall. The transoral obesity treatment devices and related methods are intended to assist a patient in maintaining a healthy body weight. Features of the devices include insertion transorally and without invasive surgery, without associated patient risks of invasive surgery, and without substantial patient discomfort. The life span of these devices may be material-dependent upon long-term survivability within an acidic stomach, but is intended to last one year or longer. The devices have the capacity to vary in size and are desirably self-actuating in that they change shape and / or volume using internal motors or actuators. The changing character of the devices helps prevent the person's stomach from compensating for the implant, such as sometimes happens with static intragastric devices.

A data compensator includes a voltage drop compensator configured to output a voltage drop compensation value based on input data of pixels included in a display panel, a color difference compensator configured to output a color difference compensation value to compensate for compensate the color difference of the pixels, a compensation data generator configured to generate a compensation value of the input data based on the voltage drop compensation value and the color difference compensation value, and to generate a compensation data by performing an operation on the input data and the compensation value, and a dithering block configured to generate output data by dithering the compensation data.

The invention relates to the technical field of grounding fault identification, in particular to a line selection method based on a FastICA for a low current grounding system in a single-phase grounding fault. According to the method, the FastICA method is utilized to process zero-sequence current of the grounding fault, three observation channels are arranged to separate fault steady-state components, transient-state components and noise signals from observation signals, the line fault characteristics are obvious after processing, and accurate line selection can be conducted on a fault line according to the energy of line separation variables. Because the noise signals are separated at the same time, the method is reliable, high in anti-interference capability and capable of not being affected by interference signals; meanwhile, for different initial phase angles of the fault, satisfactory line selection results can all be obtained by means of the method. By using the method to decompose and analyze the zero-sequence current of the fault, the cancellation or compensation among the components of the signals can be avoided, so that the fault characteristics are obvious to achieve the accurate line selection, and the method is widely applicable to the low current grounding system.

The invention discloses a laser light source device used for gas concentration detection and belongs to the field of gas concentration detection equipment. The laser light source device is designed in order to solve the problems that an existing laser light source device is small in wavelength tuning range and the like. The laser light source device used for the gas concentration detection includes a microprocessor, a light source module, a refrigerator and a serial port communication component, wherein the microprocessor, the light source module, the refrigerator and the serial port communication component are connected. The light source module is a distributed Bragg reflection laser; the distributed Bragg reflection laser includes a gain area, a phase area and an optical grating area, and the gain area and the optical grating area are respectively driven by the microprocessor through currents. According to the laser light source device used for the gas concentration detection, light intensity amplitude change is caused in the wavelength modulation process, so that the negative effects on detecting signal to noise ratios and on second harmonic line types by residual amplitude modulation are avoided, the critical degree for selecting a light source is reduced, and different power output of the same wavelength can be achieved; Besides, the laser light source device can provide high output power, thereby being applicable to reuse type multipoint networking gas monitoring.

The invention aims to provide a method for suppressing the neutral current of a transformer. In the method provided by the invention, a neutral current suppression model is constructed aiming at the influence of a compensation range of reactive power compensation on compensation effects based on the relation among interphase reactive power compensation, relative reactive power compensation and the second side current and load side current of the transformer by leading an optimization theory; and on the premise of ensuring the stability and reliability of compensation, the neutral current suppression is realized by setting constraint conditions and target function weight coefficients in the model. The method provided by the invention determines the optimal reactive power compensation quantity by solving the neutral current suppression model, thereby enabling the compensation effects and the reactive power compensation configuration to be optimal.

The invention discloses a two-dimensional and three-dimensional integrated imaging measurement system, which is characterized by being composed of an astigmatism automatic focusing unit, a light source unit, a Linnik interference unit and an image receiving unit. According to the two-dimensional and three-dimensional integrated imaging measurement system, disclosed by the invention, a fixed system framework is used for integrating a plurality of advanced imaging technologies so as to efficiently meet various precise measurement requirements; the two-dimensional and three-dimensional integrated imaging measurement system is mainly applied to testing of two-dimensional geometrical parameters of a micro-part structure, detecting of the machining, the quality and the surface appearance of MEMS (Micro-electromechanical Systems), IC (Integrated Circuit) and optical micro-devices, and medical measurement of biological tissues and the like.

The present invention discloses a duty ratio correcting circuit. The circuit comprises a first signal input end, a second signal input end, a first phase inverter, a first phase interpolator, a second phase inverter, a second phase interpolator, a first capacitor, a third phase inverter, a second capacitor, a fourth phase inverter, a first signal output end and a second signal output end. The input signal of the second signal input end is reverse in phase to the input signal of the first signal input end. The first phase inverter is connected with the first signal input end. The first phase interpolator is connected with the first signal input end. The second phase inverter is connected with the second signal input end. The second phase interpolator is connected with the second signal input end. The first capacitor is connected with the first phase interpolator. The third phase inverter is connected with the first phase interpolator. The second capacitor is connected with the second phase interpolator. The fourth phase inverter is connected with the second phase interpolator. The first signal output end is connected with the third phase inverter. The second signal output end is connected with the fourth phase inverter. The phases of higher harmonics are regulated by the first phase interpolator and the second phase interpolator and amplified to a full swing by the third phase inverter and the fourth phase inverter. According to the technical scheme of the invention, the problems of loop stability and loop compensation can be avoided.

A stereoscopic display method includes generating a left-eye crosstalk parameter according to left-eye image data and right-eye image data; generating a right-eye crosstalk parameter according to the left-eye image data and the right-eye image data; generating calibrated left-eye image data according to the left-eye image data, the right-eye image data, the left-eye crosstalk parameter, and the right-eye crosstalk parameter; generating calibrated right-eye image data according to the left-eye image data, the right-eye image data, the left-eye crosstalk parameter, and the right-eye crosstalk parameter; and displaying the calibrated left-eye image data and the calibrated right-eye image data on a display apparatus.

The invention discloses a soft-touch initial height floating adjustment system of a bevel welding-cutting mechanical hand, which is formed by a gun body clamp and a group of position detection sensors. The gun body clamp consists of a first semicircular clamp sheet and a second semicircular clamp sheet, and the second semicircular clamp sheet is connected with an electromagnetic inching propellerthrough a push rod. A retractable welding-cutting gun body clamp is utilized to slightly loosen the clamp in the process of adjusting the height of the gun body so that the gun body is in a free state of moving up and down; the actual position of the welding-cutting gun is detected in a moment of touching a workpiece through the gun point; then the clamp is adjusted to an expected height to tightly clamp an object, and the gun body is raised to an initial height position. The invention avoids modification and compensation of a series of path / posture control algorithms caused by the offset of a bevel curve movement centre of the mechanical hand. The sensor on the gun body clamp is triggered in the moment of touching the workpiece through the gun point by using free floating and is used as a height position detection sensor, and the position is used as a reference to calculate the clamping position and the raised height of the clamp to obtain the correct initial height.

Transoral obesity treatment devices and related methods for operation thereof are described which occupy space within a stomach and / or stimulate the stomach wall. The transoral obesity treatment devices and related methods are intended to assist a patient in maintaining a healthy body weight. Features of the devices include insertion transorally and without invasive surgery, without associated patient risks of invasive surgery, and without substantial patient discomfort. The life span of these devices may be material-dependent upon long-term survivability within an acidic stomach, but is intended to last one year or longer. The devices have the capacity to vary in size and are desirably self-actuating in that they change shape and / or volume using internal motors or actuators. The changing character of the devices helps prevent the person's stomach from compensating for the implant, such as sometimes happens with static intragastric devices.

The invention discloses a processing method based on light guide plate mesh point shadow reinforcement and a processing apparatus. The method comprises: A, an operation instruction of a user is received to define a data type of light guide plate mesh point shadow reinforcement as well as an initial value is assigned to corresponding data; B, information of a mesh point area on a light guide plate is obtained and it is determined whether the obtained mesh point area is a reinforcement area or not; if so, a step C is entered; C, when it is determined that the obtained mesh point area is a reinforcement area, according to the defined data type of the light guide plate mesh point shadow reinforcement and the corresponding assignment data, an astroid is employed to carry out reinforcement; and after the reinforcement is completed, a step D is entered; and D, a corresponding mesh point graph surface is generated and is output. According to the invention, when the processing method and the processing apparatus are employed, it can be avoided that a non-shadow area is compensated additionally; and the method and the apparatus are mainly applied to a guide light plate mesh point design in an LED back light module group, so that a visual effect of an LED liquid crystal module group can be improved; and moreover, advantages of high efficiency and good security are realized.

The invention discloses a resistor divider type three-phase combined voltage transformer with zero sequence voltage output, which comprises an A-phase resistor divider, a B-phase resistor divider, a C-phase resistor divider, a protection and signal conditioning circuit, an analog-to-digital converter, microprocessors, a microprocessor, an RS485 communication interface and a public zero sequence resistor. The protection and signal conditioning circuit has six signal input ends and four channels of signal output ports. The protection and signal conditioning circuit consists of a discharge tube, a varistor, a voltage follower, a differential amplifying circuit and a low-pass filter circuit. The digital-to-analog converter converts the voltage signal from the protection and signal conditioning circuit into a corresponding digital signal. The microprocessor receives the digital signal and the zero sequence voltage digital signal and outputs them through the RS485 communication interface. According to the invention, the voltage transformer can simultaneously output the digital quantity which is linearly proportional to the primary voltage of each phase containing harmonic waves, measure the zero sequence voltage, and can conveniently carry out the phase voltage division ratio and the zero sequence voltage divider ratio checksum error adjustment.

The invention relates to a pixel circuit, a driving method thereof and a display device, the pixel circuit comprises an initialization sub-circuit, a write-in sub-circuit, a first light-emitting control sub-circuit, a second light-emitting control sub-circuit and a driving sub-circuit, the initialization sub-circuit provides signals of an initialization signal end for a first node and a second node under the control of a first scanning signal end; the write-in sub-circuit provides a signal of a data input end for a third node under the control of a second scanning signal end, and stores a voltage between the third node and a fourth node; the first light-emitting control sub-circuit controls a fourth node and a fifth node to be conducted under the control of a first light-emitting control signal end; the second light-emitting control sub-circuit provides a signal of a first power supply voltage end for a fourth node under the control of a second light-emitting control signal end, and controls the first node and a third node to be conducted; and the driving sub-circuit performs voltage compensation on the fifth node under the control of the first node and generates a driving currentfor driving the light-emitting element to emit light. According to the invention, the uniformity of the display image is improved.

The invention discloses an active let-off device of a three-dimensional loom. The device comprises a plurality of roller rotating devices which are longitudinally arranged and are parallel to each other in pairs, wherein a yarn splitting device is arranged on the back surface of each roller rotating device, and a belt transmission device is arranged on the side surface of each roller rotating device. The invention further discloses a using method of the active let-off device of the three-dimensional loom; yarn is divided by the yarn splitting devices and then actively sent out through the roller rotating devices under the driving of the belt transmission devices.

The invention discloses a hand fine motion ability testing and training device, which is composed of an arm bracket, a hand bracket, a force sensor, a programmed resistance source, a control box, a supporting table top, evaluation analysis software and the like. During testing, in order to prevent action compensation, an arm of a subject is tied to the arm bracket and a palm is tied to the hand bracket, a single finger or multiple fingers of the subject autonomously pull the knot at the stress application tail end and the wrist rotates leftwards and rightwards to obtain change signals of the force sensor, an angle sensor and traction rope length respectively, and the change signals are transmitted to the evaluation analysis software and can be used for quantitatively evaluating the motionability of wrist joints and finger joints of the subject, so that evaluation of the hand fine motion ability test is achieved. During rehabilitation training, a subject does actions with the same testposition, and the resistance output by the resistance source is adjusted, so that the finger joints and the wrist joints of the subject receive different degrees of resistance in the motion process,and the resistance training effect is achieved.

The present invention relates to a radiographic imaging apparatus and a corresponding radiographic imaging method. The proposed apparatus comprises an X-ray source (20, 108) and a photon counting X-ray detector (40, 110). The X-ray source (20, 108) comprises a rotary X-ray anode (23) having a number of radial slits and a target layer provided on a surface of said rotary X-ray anode in between said radial slits for emitting X-ray radiation when hit by said electron beam. The said photon counting X-ray detector (40, 110) comprises a persistent current sensing and correction unit (70) for sensing a persistent output current in a blanking interval during which no X-ray radiation is emitted by said X-ray source and for using the sensed persistent output current to correct a detector signal in a subsequent measurement interval during which X-ray radiation is emitted by said X-ray source.

The present invention belongs to the orifice plate gas flow measurement technical field and relates to a high-pressure orifice plate gas stagnation temperature control device and method. The control device is a temperature control gas tank; a temperature control gas tank inlet flange is externally connected with the outlet of a gas source; a front porous rectifying plate is clamped to a temperature control gas tank wall through a temperature control gas tank inlet expanding type clamp plate flange by means of bolts; electric heating rods are fixedly clamped to a rear porous rectifying plate through the front porous rectifying plate; line collection rings are located on the rear porous rectifying plate; electrode springs are clamped between electric heating rod inner electrodes and external electrodes; the external electrodes are embedded in insulating materials; the insulating materials are embedded in metal plugs; the metal plugs are welded to ball head-taper surface sealing structures; the ball head-taper surface sealing structures are welded to the temperature control gas tank wall; and outer periphery flow guiding holes and inner periphery flow guiding holes are located on the rear porous rectifying plate. With the high-pressure orifice plate gas stagnation temperature control device and method of the invention adopted, gas temperature at the inlet of an orifice plate can be effectively compensated in a certain range, the accuracy of key parameter measurement participating in the calculation of the discharge coefficient of the orifice plate can be ensured, and the accuracy of the calibration of the discharge coefficient of the orifice plate can be improved.

The present invention belongs to the orifice plate gas flow measurement technical field and relates to a high-pressure orifice plate gas stagnation temperature control device and method. The control device is a temperature control gas tank; a temperature control gas tank inlet flange is externally connected with the outlet of a gas source; a front porous rectifying plate is clamped to a temperature control gas tank wall through a temperature control gas tank inlet expanding type clamp plate flange by means of bolts; electric heating rods are fixedly clamped to a rear porous rectifying plate through the front porous rectifying plate; line collection rings are located on the rear porous rectifying plate; electrode springs are clamped between electric heating rod inner electrodes and external electrodes; the external electrodes are embedded in insulating materials; the insulating materials are embedded in metal plugs; the metal plugs are welded to ball head-taper surface sealing structures; the ball head-taper surface sealing structures are welded to the temperature control gas tank wall; and outer periphery flow guiding holes and inner periphery flow guiding holes are located on the rear porous rectifying plate. With the high-pressure orifice plate gas stagnation temperature control device and method of the invention adopted, gas temperature at the inlet of an orifice plate can be effectively compensated in a certain range, the accuracy of key parameter measurement participating in the calculation of the discharge coefficient of the orifice plate can be ensured, and the accuracy of the calibration of the discharge coefficient of the orifice plate can be improved.

The invention discloses a physical training device used for physical education. The physical training device comprises a frame plate; the frame plate is a cuboid shell plate with the upper end and thelower end being open; a base is fixed to the lower end face of the frame plate; a side plate is fixed to the side face of the lower end of the base; and a stud hole is formed in the middle of the side plate. The physical training device used for physical education is simple in structure and convenient to use, force plates are overturned along hinging seats, thus a sliding plate and an abutting plate are supported through idler wheels, the abutting plate is supported in a downwards pressed mode by arm power, the abutting plate can support the chest, and thus damage, caused by falling during exhaustion, to a body is avoided; the horizontal positions of the hinging seats can be adjusted so as to change the length of a power arm to adjust the magnitude of force applied to holding handles; andthe physical training device is suitable for student users of different physiques and arm power, push-up training is assisted to be conducted, students are assisted in regulating the push-up action,other muscle compensation is avoided, and the physical training effect is improved.

An ENG-ECU performs a specific cylinder fuel cutoff process of stopping combustion of an air-fuel mixture in some cylinders out of a plurality of cylinders of an internal combustion engine and a transmission process of transmitting engine operation information on execution of the specific cylinder fuel cutoff process to an HV-ECU. The HV-ECU performs a torque compensation process of compensating for a decrease in engine torque due to execution of the specific cylinder fuel cutoff process using an output torque of a second MG based on the received engine operation information. The ENG-ECU performs a process of starting the specific cylinder fuel cutoff process in a combustion cycle when a waiting time which includes a time until the HV-ECU receives the engine operation information has elapsed after the transmission process has been performed.