14results about How to "Automate Calibration" patented technology

The invention provides a direct-current electric energy meter self-calibration method and system. The method comprises the following steps: acquiring an internal high-precision low-temperature drift voltage reference signal; converting the voltage reference signal into an analog calibration voltage signal on a sampling resistor by controlling a direct current standard voltage generation circuit according to the voltage reference signal; converting the voltage reference signal into an analog calibration current signal in a current loop by controlling a DC voltage-current conversion circuit according to the voltage reference signal; obtaining a current environment temperature, and calculating a calibration gain at the current temperature according to a preset temperature coefficient; according to a theoretical calibration value, calculating a voltage gain, a current gain and a power gain of the sampling voltage value and the sampling current value, and writing the gains into a memory; and correcting the reference voltage signal according to the obtained temperature calibration gain, and performing temperature compensation.

The invention discloses a large-load high-precision reset type balance automatic calibration system. Each automatic loading subsystem drives a weight to ascend and descend through a spiral elevator, the gravity of different weights is transmitted to a steel belt through a suspender and transmitted to a loading head, the loading head transmits a load to a calibrated balance, and loading of the multi-component load of the calibrated balance is achieved. The displacement sensor measures the distance change of each position and converts the distance change to obtain the deformation. And the balance attitude is adjusted and reset through the reset subsystem. Each subsystem is compact in structure and clear in function. The reset subsystem maximizes the utilization of the advanced performance of a servo motor, so that the reset precision of linear displacement can be equal to the motion precision of the servo motor, and the reset precision of angular displacement is also improved to a corresponding degree. The control logic of each subsystem including the reset subsystem, the automatic loading system, the displacement measurement system and the like is simple, integrated control is easy to realize, automatic calibration is realized, and the calibration efficiency is greatly improved while manpower is liberated.

The invention relates to clock frequency calibration, and discloses a clock measuring circuit and a calibration method and system, and the method comprises the steps: employing a clock frequency detection circuit to measure and calculate the clock frequency of an internal to-be-calibrated crystal oscillator; entering a calibration state, performing cyclic calibration, and adjusting a calibration register; when the frequency value is calibrated to be within a set error range, clock calibration is completed; and a calibration stability test is carried out, and the calibration process is optimized. According to the clock measurement circuit and the correction method and system provided by the invention, high-precision and automatic calibration of the clock frequency and excellent environmental adaptability can be realized. The clock frequency of the crystal oscillator can be monitored and calibrated in real time through the built-in clock frequency detection circuit under the condition that an external reference clock is not needed, and the real-time performance and the automation level of calibration are remarkably improved. And a cyclic calibration mechanism and a stability test are introduced in the calibration process, so that the stability and reliability of a calibration result in long-term operation are ensured.

The invention provides a base station work parameter calibration method, device and equipment and a computer program product. The method comprises the following steps: analyzing a minimization drive test report to obtain a plurality of effective sampling points; extracting minimum boundaries of the cells from the plurality of effective sampling points to obtain cell drive test coverage boundaries of the plurality of cells; determining an overlapping area of same-frequency cells belonging to the same base station based on the cell drive test coverage boundaries of the plurality of cells; according to the central position of the overlapping area of the same-frequency cells, determining the cell drive test simulation longitude and latitude of the base station; and calibrating the base station work parameter longitude and latitude of the base station based on the cell drive test simulation longitude and latitude of the base station. According to the base station work parameter calibration method provided by the invention, automatic calibration of the longitude and latitude of the work parameters of the base station can be realized; furthermore, according to the method, the minimization drive test report is adopted as a data source for evaluating the work parameters of the base station, the minimization drive test report is latest data directly reported by the user terminal, the effectiveness is high, and the timeliness of updating the longitude and latitude is improved.

The invention relates to a comparator calibration circuit and a comparator calibration method. The comparator calibration circuit is characterized in that a chip test socket is connected with a chip to be tested; the chip to be tested comprises a plurality of comparator modules; the relay selection circuit is connected with the chip test socket and is used for determining a target comparator module from the plurality of comparator modules according to test requirements; the first converter is connected with the relay selection circuit and is used for determining input voltage; the second converter is connected with the relay selection circuit and is used for receiving the output voltage; and the controller is used for calibrating the target comparator module according to the input voltage and the output voltage of the target comparator module, so that the offset value of the target comparator module is smaller than a target threshold value. According to the comparator calibration circuit, the calibration precision of the comparator modules is improved while automatic calibration of the plurality of comparator modules is realized, and high-precision automatic calibration of the plurality of comparator modules can be realized based on the same comparator calibration circuit.

The invention discloses a calibration method and system and coating equipment. The calibration method comprises the following steps: placing a standard block between each coating hole and a corresponding mask roller, enabling a first surface of the standard block to face the coating hole, and enabling a second surface of the standard block to face the mask roller; the highest points of the mask rollers are located under the standard blocks, and the poses of the mask rollers are adjusted, so that the distance between the highest point of each mask roller and the corresponding second face is equal to a second preset value; the pose of the coating head is adjusted, so that the distance between each coating hole and the corresponding first surface is equal to a third preset value; the standard block is moved away, the coating head is moved downwards, the downward moving distance is the thickness of the standard block, and the distance between each coating hole and the highest point of the corresponding mask roller is made to be a first preset value. According to the invention, the pose of the mask roller and the coating head can be quickly adjusted, so that the distance between each coating hole and the mask roller reaches a preset first value.

This utility model discloses a horizontal monitoring device for building construction, including a stabilizing frame with adjustable support legs at its lower end. A monitoring component for horizontal monitoring is installed inside the stabilizing frame, and a counterweight is installed at the lower end of the monitoring component. The monitoring component includes a connecting pipe. In this utility model, by setting up the monitoring component and using the connecting pipe in conjunction with magnetorheological fluid, the monitoring component can be leveled by its own counterweight in a natural state. Then, by controlling the operation of the electrodes, the magnetorheological fluid is solidified, ensuring that the laser emitting component remains horizontal. In this state, the laser emitting component emits laser lines, which, in conjunction with the construction workers' operations, achieve the purpose of horizontal monitoring. Simultaneously, a wireless control module can be used during construction to remotely control the operation or stop of the electrodes, achieving automated calibration without the need for repeated adjustments by the user.

The application discloses a clock calibration method and device, electronic equipment and medium, and belongs to the technical field of data processing. The method comprises the following steps: in response to a triggered clock automatic calibration event, simultaneously starting a first clock and a second clock to count; wherein the first clock is used as a reference clock source, the second clock is used as a to-be-calibrated clock source of a real-time clock, the frequency of the first clock is greater than the frequency of the second clock; when the count value of the second clock reaches a preset first count threshold, the first clock and the second clock are simultaneously stopped from counting, and the count value of the first clock at the time of stopping counting is recorded; the actual frequency value of the second clock is calculated according to the count value, the frequency information of the first clock and the first count threshold; the frequency deviation value is determined according to the difference between the actual frequency value and an ideal frequency value; and the real-time clock is calibrated based on the frequency deviation value. The traditional calibration link is simplified, the calibration is completed by a hardware closed loop, software participation is not needed, and automatic calibration is realized.

The invention provides a batch calibration system and method for electrical stimulation signal conversion accumulated deviation, and the system comprises a master microcontroller, slave microcontrollers, a touch screen, an electrical stimulation signal output circuit, a transformer, and a current transformer sampling feedback circuit. The slave microcontroller is responsible for the generation, adjustment and feedback processing of electrical stimulation signals of each channel. The transformer boosts an electrical stimulation signal to a required voltage, the signal generates a current through the standard calibration resistor, and the current transformer monitors the current and converts the current into a voltage signal through the sampling resistor to feed back the voltage signal to the slave microcontroller. The system realizes automatic calibration of the output gain by adjusting the amplitude of the electrical stimulation signal. And after calibration, the system is reset and enters a normal working state, so that the consistency of signal output gains is ensured. According to the method, the problem of signal deviation caused by component difference is effectively solved, the calibration process is simplified, and the production efficiency and reliability of the medical instrument are improved.

The present application relates to the technical field of preparation of particle size standard calibration solution, and particularly relates to a preparation process of multi-particle size standard particle calibration solution, which comprises the following steps: putting multi-particle size standard particles with traceability diameter size into a prepared blank reference solution; simultaneously adding antioxidants, water absorbents, dispersants and flocculants; preparing through temperature rising-constant temperature-temperature lowering isothermal control cycle and stirring process; cross testing and evaluating the multi-particle size standard particle calibration solution in preparation through a particle counter with traceability; comparing and obtaining threshold spectrum and pulse wave spectrum corresponding to particle size in the multi-particle size standard particle calibration solution; and finally obtaining the multi-particle size standard particle calibration solution with traceability value transmission.

The present invention provides a method for calibrating a flow cytometer detector, which belongs to the technical field of instrument calibration, and includes: installing the light source, filter, and light source sensor of the flow cytometer at corresponding positions through positioning pin holes, and after fixing, connecting a motor to an eccentric wheel, and at this time, the motor connected to the eccentric wheel is recorded as zero position; connecting a sensor panel, and the sensor panel receives the outgoing light source in the filter, and calculates the position error d between the actual light source and the theoretical light source according to the coordinate positioning of the sensing area of ​​the sensor panel; feeding back the position error d to a control system, and determining the deflection angle of the filter and the adjustment angle of the eccentric wheel, and combining with an error setting function, controlling the motor to drive the eccentric wheel to correct the filter; after calibration, checking the position deviation, if the deviation threshold is met, stopping the calibration, if not, continuing the calibration until the deviation threshold is met, and the calibration ends. Automatic calibration is realized to improve the calibration efficiency and ensure the detection accuracy.

The invention relates to a processor and a processing device for a three-dimensional model. The processor is configured to determine an original model needing to be replaced by selecting a model in a three-dimensional space and determine parameters which cannot be changed; identifying a bounding box size of the original model and a bounding box size of the replacement model; under the condition that the replacement model is arranged in the same direction as the original model, the maximum absolute value in absolute values of three direction difference values of the bounding box size of the original model and the bounding box size of the replacement model is taken as a reference, and a ratio is obtained; scaling and adjusting the replacement model into a calibration model according to a proportion; and replacing the original model with the calibration model. According to the invention, region division is carried out on the original model in the three-dimensional scene, so that the replacement elements of the original model in the region can be determined in advance. According to the method, a third-party system does not need to be used, the step of manually inputting the replacement elements can be reduced, and automatic calibration of the replacement model is achieved.

The application discloses a kind of calibration methods of multichannel transmitter calibration device, belong to metrological calibration technical field.The method includes: in response to configuration instruction, the connection state of control power module and target channel, make target channel enter working state;Original electric signal in power supply loop is collected, original electric signal includes loop current value and power supply voltage value;Original electric signal is modified using preset calibration parameter, and target measurement value is output.The application has adopted the undisturbed switching control based on compliance margin prediction, and the double-variable coupling error compensation model based on power supply voltage and loop current.The method solves the non-linear measurement error problem caused by voltage fluctuation under the multi-channel common power supply architecture, and the protection misjudgment problem caused by hard switching transient, realizes the automatic calibration without external precision power supply intervention.

The invention discloses an intelligent horizontal correction method and system for an X-band radar antenna, and belongs to the technical field of data analysis. The invention provides a radar antenna array calibration scheme based on a multi-dimensional state attribute vector set and a machine learning algorithm, through deep analysis of sensing measurement state data, X-waveband performance characteristics of the antenna array can be accurately identified, and specific correction decision guidance is provided for each performance characteristic. Therefore, intelligent and automatic calibration of the radar antenna array can be realized, the calibration accuracy and efficiency are remarkably improved, and a more reliable guarantee is provided for wide application of a radar system.