5results about How to "Achieve precise calibration" patented technology

The application discloses a FinFET device temperature-dose coupling modeling method, and belongs to the field of advanced semiconductor technology. The application solves the problem that a traditional irradiation model cannot give the degradation rule of a FinFET device under different temperature-dose. The application constructs a multi-physical field coupling nonlinear irradiation model, overcomes the limitation that a traditional total dose model only depends on the electric field intensity, effectively breaks through the limitation that a hole yield in the traditional model is only affected by the electric field and cannot reflect the degradation rule under different temperature-dose, and guarantees the accuracy of simulation results. Based on experimental data feedback, the application realizes dynamic correction of coupling factors, and improves the precision of the temperature-dose coupling model. By extracting the electrical characteristic parameter drift, the application constructs an analytical function of the evolution of the coupling factors with temperature and dose, and realizes accurate parameterization characterization of the radiation-induced trap charge accumulation process under different temperature-dose. The application can be applied to temperature-dose coupling modeling of a FinFET device.

The application relates to a swing angle measuring and calibrating device of an artificial joint friction and wear test system, which is characterized by comprising a first connecting shaft, a second connecting shaft, a locking sleeve, a special-shaped flange, an incremental encoder and a laser instrument, the head of the first connecting shaft is used for fixedly connecting a first swing arm of the artificial joint friction and wear test system, the tail of the first connecting shaft is vertically provided with the second connecting shaft, the second connecting shaft is installed at the upper end of the special-shaped flange, the installation position of the second connecting shaft can be adjusted along a radial direction of the upper end of the special-shaped flange, and the lower end of the special-shaped flange is coaxially provided with the incremental encoder; and the laser instrument is coaxially installed at the center of the upper end of the special-shaped flange. The device can convert the swing of the swing arm of the artificial joint friction and wear test system into the self-rotation of the incremental encoder, so that the swing angle of the swing arm of the artificial joint friction and wear test system can be accurately calibrated.

The invention provides a parameter calibration method, computer equipment and a storage medium, and the parameter calibration method comprises the steps: obtaining a plurality of image sets under the same target color temperature, the plurality of image sets being image sets corresponding to a plurality of illumination intensities; determining a first parameter pair corresponding to each image in each image set to obtain a plurality of first sets; determining a second parameter pair in each first set in the plurality of first sets to obtain a plurality of second parameter pairs; the second parameter pair is the first parameter pair with the minimum chromatic aberration in the first set; and screening out a target parameter pair corresponding to a target color temperature from the plurality of second parameter pairs, and calibrating camera parameters under the target color temperature based on the target parameter pair. According to the scheme, the multi-illumination-intensity image set is combined under the same target color temperature, white balance and color correction parameter selection are optimized, and the color consistency and precision of an image processing link are improved.

This invention discloses a calibration circuit, a chip including the same, and a calibration method. The calibration circuit according to an embodiment of the invention includes an input terminal for receiving a voltage control signal, wherein the voltage control signal is directly or inversely proportional to an ideal output voltage; a sampling unit connected to the output terminal to sample and obtain a test voltage; a first test voltage being a test output voltage corresponding to a first ideal output voltage, and a second test voltage being a test output voltage corresponding to a second ideal output voltage; an arithmetic unit obtaining a proportional deviation parameter based on the first test voltage, the voltage control signal corresponding to the first test voltage, the second test voltage, the voltage control signal corresponding to the second test voltage, and the directly or inversely proportional relationship; and a proportional adjustment unit adjusting the output voltage signal according to the proportional deviation parameter. The calibration circuit and the chip including the same according to an embodiment of the invention can achieve accurate calibration across the entire adjustment range.

The present application relates to the technical field of overhaul of hydroelectric generating set, in particular to a seat ring fixed guide vane opening construction method and a construction device, the method uses the geometric information of the fixed guide vane or its adjacent structure to deduce the datum point of the opening, obtains the first coordinate of the datum point; the profile feature of the fixed guide vane is matched with the datum point of the opening, the second coordinate of the datum point is obtained; the deviation value between the first coordinate and the second coordinate is calculated, the deviation value is compared with the preset threshold value, and the accurate coordinate of the datum point is determined based on the comparison result; the contour line of the opening is determined according to the accurate coordinate and the actual size of the opening; the opening operation is performed according to the contour line of the opening; the present application realizes the accurate calibration of the position to be opened by checking and correcting the positioning results obtained by two ways; then the systematic opening operation including layered drilling, cutting communication, and precise shaping of the orifice and the guide vane head is performed.