15 results about "Systematic measurement" patented technology

This invention provides a dynamic weighted fusion system and method based on real-time error covariance closed-loop feedback. Addressing the contradiction between underlying physical coupling interference and the need for high-bandwidth dynamic response in non-stationary random environments for large-scale arrays, this invention utilizes a first-order Markov model to quantify the statistical coherence strength of individual observation units. Secondly, it implements physical-layer regularization constraints, eliminating bus capacitance interference and geometric phase deviation through a slope-constrained driving strategy and spatial consistency mapping. In high-frequency sampling environments of 208Hz and above, combined with transient discrimination logic based on full-axis spatial correlation, an analytical solution from a Lagrange optimized functional is used to establish a negative correlation mapping function between weight allocation and the real-time posterior error covariance trace, achieving dynamic gain suppression for non-stationary observation units. This invention achieves optimal fusion of large-scale redundant information while ensuring high-bandwidth real-time response, significantly improving the system's measurement accuracy and robustness.

The present application relates to steel wire rope state detection technical field, especially in kind based on event compensation correction steel wire rope diameter measurement method and system, its technical scheme includes imaging module, boundary initial extraction module, dynamic motion estimation module, dynamic correction compensation module and diameter calculation module, the imaging module includes traditional camera, event camera, optical component, synchronous trigger device and beam splitter, the traditional camera is used for collecting the frame image of steel wire rope, the present application relies on the complementary advantages of event camera and traditional camera, through event driven dynamic geometric compensation model, the systematic measurement deviation under dynamic working condition is solved from the mechanism, the breakthrough of quasi-static imaging dependence is broken through, without additional constraint or frame rate promotion, control cost and hardware complexity, avoid signal-to-noise ratio decline and other problems, realize high-precision stable measurement under high speed, vibration working condition, adapt to multi-industrial scene online monitoring, practicality and application value are remarkable.

This application specifically relates to a method, apparatus, vehicle, and medium for testing the NVH performance of a drive half-shaft assembly. The method includes: testing the NVH performance of the drive half-shaft assembly based on target measurement points under target operating conditions, using a first target operating condition and / or a second target operating condition, and extracting NVH performance indicators based on the test results. Finally, if preset test targets are met, a test report on the NVH performance of the drive half-shaft assembly is generated. This solves the problems in related technologies where bench testing deviates from the vehicle's boundary conditions, failing to accurately reflect the NVH performance of the drive half-shaft assembly, and where road testing of the vehicle is difficult to accurately separate and locate the noise source of the half-shaft. Based on the constraints of the actual assembly state of the vehicle, the environment, and the vehicle's condition, a systematic measurement point layout is constructed, and standardized test conditions are executed, thereby achieving accurate testing of the NVH performance of the drive half-shaft assembly.

The application discloses a forward drilling harmful gas emission drilling measurement integrated platform and relates to the technical field of tunnel construction. The platform comprises a detection device, a drilling machine and a drill rod arranged on the drilling machine. The detection device comprises a sleeve and a laser monitoring module, a shielding module and a gas flow rate monitoring module arranged on the sleeve. The platform further comprises a walking system, a lifting and angle adjusting system arranged on the walking system, a drilling platform arranged on the lifting and angle adjusting system and a drilling machine arranged on the drilling platform. The drilling machine and the sleeve are coaxially arranged and fixed on the drilling platform. The drill rod passes through the inner cavity of the sleeve. The application can save the steps of secondary installation, leveling, centering and fastening, reduce the preparation time before drilling, ensure high centering accuracy of the detection device and the drilling machine, avoid the angle between the laser light path and the drilling axis caused by manual centering error, prevent systematic measurement error and improve the accuracy of the final detection result.

This invention relates to the field of measurement platform technology, specifically a measurement platform with a leveling system, comprising: a base, a support frame fixed to the surface of the base, an adjustment seat provided on the surface of the support frame, a flip plate provided on the surface of the adjustment seat, a fixing ring provided on the surface of the flip plate, a first crossbar inserted into the end of the flip plate, a second crossbar fixed to the other end of the first crossbar, a nut provided on the surface of the second crossbar, a horizontal plate provided on the surface of the second crossbar, a connecting rod fixed to the end of the horizontal plate, and a pressing block provided at the other end of the connecting rod; the beneficial effect is that after the horizontal plate is pushed by the nut, it moves against the direction of the adjustment seat, and the horizontal plate drives the pressing block to move through the connecting rod, and the pressing block presses down on the surface of the force-bearing rod, so that the two sets of force-bearing rods drive the flip plate to stabilize on the surface of the adjustment seat, and the position of the fixing ring can also be stabilized when the measuring instrument is fixed on the surface of the fixing ring.

The present application relates to the technical field of density sensor, particularly relates to an overflow type density sensor, which comprises a measuring tube, the upper end of the measuring tube is fixedly installed with an overflow weir for liquid overflow, the side of the measuring tube is provided with a fixed density detector near the lower position, and the outer side of the measuring tube is provided with a mounting cap wrapping the overflow weir near the upper position. The second locking screw column is screwed, so that the measuring tube and the rotating ball are rigidly locked, the posture is fixed, the leveling process ensures that the constant measuring liquid level surface physically locked by the overflow weir is in a horizontal state, and then the vertical height difference between the two pressure taking points of the density detector is kept at a design value. The design converts the complex field installation reference calibration problem into a simple mechanical leveling and locking operation, so that the instrument can obtain the measuring reference accuracy on various complex pipeline layouts, and effectively solves the systematic measurement error caused by the installation inclination of the traditional sensor.

A kind of optical computing chip energy efficiency ratio measurement method and device, the main steps of the method include: determining the kind of active device in optical computing chip;Respectively calculate the power consumption value of high-speed optoelectronic modulator, phase shifter, photodetector;The total power consumption of optical computing chip is obtained by adding these power consumption values;The energy consumption ratio of optical computing chip is calculated by the ratio of the computing power value of optical computing chip and total power consumption value.The method and device form a systematic measurement method for the energy consumption ratio of optical computing chip, solve the problem of current photonic computing chip energy efficiency ratio index measurement method ambiguity, realize the reliable measurement of optical computing chip energy efficiency ratio index, provide an important basis for the design optimization of optical computing chip.

Method for providing measurement points (u) for measuring a physical system (2), comprising the following steps: - Providing (S1) several initial measurement points (ustart), each determined by an input value of an input quantity (E) or input values ​​of several input quantities (E) and each exhibiting a gradient with respect to one or more input quantities (E), wherein the measurement points are applied cyclically with a cycle time Δt, such that gradients of one or more input quantities result from the sequence of input values ​​of the input quantities at the successively applied measurement points, wherein differences between the input values ​​of an input quantity from one measurement point to the next determine the gradient of the input quantity E in question; - Successively selecting (S2) one of the initial measurement points (ustart) from a subset or all of the initial measurement points (ustart);- Generating (S3) a set of measurement points (u) depending on the selected initial measurement point (ustart), wherein the generated measurement points (u) are generated with increasing dynamic component, the dynamic component of the measurement point being determined by its gradient(t) = u(t) − u(t − 1) − t; - Applying the generated measurement points (u) to the physical system (2) and acquiring (S4) a resulting output quantity (y), wherein the generation and application of the measurement points (u) based on a selected initial measurement point (ustart) is carried out until the resulting output quantity (y) violates a predefined limit condition.

Provided, in one aspect, is a method comprising receiving data of measurements from a distributed sensing system having sensors distributed along different depths of a wellbore formed in a subsurface formation; and performing signal processing of the data to output a number of modes, wherein each mode includes a subset of the data that quantifies behavior of at least one of a fluid in the subsurface formation and a rock in the subsurface formation on a different combination of locations in the wellbore and timing of the measurements.

The application provides a low VOCs ink processing process data analysis method and system, applied to the ink processing technical field, by pre-establishing the physical correlation model between the target physical property and the processing equipment operation parameter, synchronously acquiring the real-time measurement data and the real-time observation data, and calculating the theoretical expected value of the processing equipment operation parameter by using the physical correlation model, then comparing the real-time observation data with the theoretical expected value, in the case of judging the existence of physical inconsistency, quantifying the systematic measurement deviation of the target physical property according to the difference between the real-time observation data and the theoretical expected value, finally generating the correction parameter according to the quantified systematic measurement deviation, and feeding back the correction parameter to the process control logic, to correct the control decision executed based on the real-time measurement data, which has the advantages of being capable of analyzing data in a complex production link, and mining deep abnormalities from a large number of seemingly normal data.

In order to estimate a radiation load quantity for an imaging system having a radiation source, a base model is obtained for determining the radiation load quantity depending on a set of input variables, which include at least one radiation-source operating parameter. Measurement data measured for the imaging system is obtained that includes the radiation load quantity for a multiplicity of different values of the at least one radiation-source operating parameter. A refined model is generated by adapting the base model depending on the measurement data. Actual values of the set of input variables are defined for the imaging system. The refined model is used to determine, depending on the actual values of the set of input variables, an estimated value of the radiation load quantity.

The application discloses a kind of dynamically regulated regional water budget benchmark quota accounting method and system, is specifically related to water resource measurement accounting field, including obtaining the measurement dataset of target region in target accounting period, resampling according to uniform time granularity to measurement dataset and aligning according to time sequence, linear interpolation is filled in according to its adjacent effective sampling point to missing sampling point, and output measurement processing set;According to the summary caliber of target region, the partition summary of measurement processing set is carried out, and the measurement candidate is obtained by accumulation. By constructing the consistency writing judgment of double-source candidate of measurement link and independent verification link comparison, and when deviating, the common offset is extracted based on the batch or operation and maintenance strategy grouping of measurement device, the measurement candidate is corrected, and the verification amplitude is limited, the continuous deviation of the same batch systematic measurement deviation is inhibited to the rolling update of regional water budget benchmark quota, and the recheckable verification is realized.

The application provides a temperature drift compensation method, device and system of a stereoscopic measurement system and a storage medium, relates to the technical field of optical scanning, and is applied to a calculation unit in a stereoscopic measurement system. The stereoscopic measurement system further comprises a tracker and a scanner. The calculation unit, the tracker and the scanner are in communication connection. The tracker comprises a skeleton and a camera arranged on the skeleton. Temperature sensors are arranged on the camera and the skeleton. The method comprises the following steps: collecting the current temperature of the temperature sensors when the tracker is in a preheating stage before work; judging whether the tracker reaches a dynamic balance state according to the current temperature of the temperature sensors; and if the tracker reaches the dynamic balance state, compensating the camera parameters of the tracker by using a preset compensation model according to the current temperature of each temperature sensor. The application can improve the measurement accuracy of the stereoscopic measurement system.

Systems and methods for static and dynamic calibration could be used to align a measurement beam from a coherence imaging (CI) measurement system with a processing beam from a material processing system. These systems and methods could generate a calibration measurement output from the CI measurement system and / or an auxiliary sensor. Subsequent measurements performed by the CI measurement system could be modified based, at least in part, on this calibration measurement output.

A measuring system for measuring an optical element is presented and described, comprising: an autocollimator system for determining the orientation of the optical element using an autocollimation method; and an interferometry measuring device, wherein the interferometry measuring device forms part of an interferometry measuring system for determining the spatial position of the optical element using an interferometric measuring method, the interferometry measuring device being arranged outside the beam path of a measuring beam of the autocollimator system. The measuring system makes it possible to determine the spatial position of the optical element, e.g., immediately following an orientation of the optical element, e.g., at the same measuring station.Also shown and described are a measuring method for measuring an optical element, a method for manufacturing an optical system, and a use of the measuring system for manufacturing an optical system.