7 results about "Coordinatograph" patented technology

The application discloses a kind of backplate's plane sputtering target service life estimation method, mainly for the whole original thickness is relatively thin, after separating unbinding, easy to produce warping, target edge does not sputter or almost does not sputter backplate's plane sputtering target material.The specific method is to separate sputtering target and backplate by heating, to determine the deepest sputtering track of sputtering target by mold silica gel, to the difference between the maximum edge thickness and the minimum thickness of the deepest sputtering track as the maximum thickness difference, and to use it as a reference to estimate the remaining minimum thickness consumption sputtering power consumption, and then to estimate the service life of sputtering target.The method of the application is simple to operate, suitable for manufacturers without precision measuring instruments such as three-coordinate instrument and three-dimensional scanner, providing guidance for the estimation of the service life of backplate's plane target, and ensuring the safe use of sputtering target.

The utility model discloses the technical field of machining measurement device, more specifically discloses a kind of for the size measurement tool of incomplete circle, comprising: tool main body, detachably set on part;Compensation component, set on tool main body, can be synchronous with the arc to be processed Machining;Wherein, the straight line of the center of the arc to be processed of compensation component and arc to be processed can pass through arc to be processed;Measuring component is used to measure the diameter between compensation component and arc to be processed;By using the utility model, arc can be measured in real time during processing, cancel the use of radius gauge and three-dimensional coordinate instrument;Greatly reduce the difficulty of real-time measurement arc actual size in part processing process, improve the arc size measurement stability and accuracy, can effectively improve the product quality and stability of part.

The invention relates to an automatic precise wire shifting test method and device for a positive and negative vertical line monitoring system, and aims to solve the problems of low displacement precision, inaccurate direction control, large disturbance, non-reproducibility, error-prone data recording and the like in the traditional manual wire shifting calibration. The device comprises a base module, a two-dimensional precision motion execution module, a micro-force clamping type end effector, a high-precision grating ruler displacement measurement module and an integrated control and data processing module. Full-closed-loop control is realized by adopting an absolute grating ruler independent of a driving system, constant-force clamping is realized through a V-shaped double-roller micro-force clamping jaw and a force feedback closed loop, the stable state of a vertical line is judged based on S-shaped trajectory planning and spectral analysis, and an automatic multi-point toggle test is executed. According to the invention, micron-sized displacement application and measurement, affine transformation coordinate correction for eliminating installation alignment errors, disturbance minimization in a test process and synchronous and automatic recording of data can be realized, and the calibration precision, repeatability and intelligent level of the plumb line coordinatograph are improved.

The application provides a dot matrix CCD-based vertical coordinate instrument and a control method thereof, which comprises a light source device adapted to be fixed to a measuring base; a measurer corresponding to the light source device and adapted to be fixed to a measured object, the measurer being provided with a dot matrix CCD located in the emitting path of the light beam; and a controller electrically connected to the measurer, which calculates the relative position information of the measurer and the light source device according to the projection coordinates of the light beam projected onto the dot matrix CCD, and determines the relative position of the measured object relative to the measuring base according to the relative position information. The light beam is irradiated on the dot matrix CCD to form projection coordinates, so that the position sensing between the measurer and the light source device is generated, the relative position information is obtained by cooperating with the controller, the relative position of the measured object relative to the measuring base is determined, and the position deviation of the measured object is judged, thereby overcoming the defects of poor linearity of electric signal conversion and easy system error of the capacitive vertical coordinate instrument in the prior art.

The invention discloses a concrete dam vertical line system monitoring and recovering method for wall contact failure, and belongs to the technical field of dam safety monitoring. According to the method, lateral tension is applied in the direction opposite to the vertical line wall contact direction, so that the vertical line is separated from the wall contact state; measuring a side tension value through a high-precision dynamometer, measuring a side tension direction through a theodolite, combining vertical line position coordinates read by a coordinatograph, establishing a mathematical model by utilizing a moment balance principle, and calculating horizontal projection coordinates of a suspension point on the observation room coordinatograph; during first application, whether the vertical line is separated from the wall contact state or not needs to be judged through a vertical line fundamental frequency test, the optimal side tension direction and size are determined, and during subsequent application, the vertical line fundamental frequency still needs to be regularly detected to ensure that the vertical line is continuously separated from the wall contact state. The method can recover the vertical line system monitoring function which fails due to wall contact in the vertical line hole under the condition of no hole expansion, and has the advantages of no need of destructive construction (hole expansion), low cost and high precision.

The utility model relates to a dam multi-mode plumb line displacement monitoring support which comprises a third instrument base, the third instrument base is connected with a second instrument base through an adjusting screw rod, a horizontal bubble is arranged on the second instrument base, a CCD plumb line coordinatograph is installed on the second instrument base, and the second instrument base is connected with a first instrument base through an adjusting screw rod. The instrument base I is connected with a vertical line collimator through an adjusting screw rod; wherein the third instrument base, the second instrument base, the first instrument base and the vertical line collimator are respectively provided with an opening for a vertical line to pass through in the direction of the vertical line. The dam vertical line displacement monitoring system can integrate layout of existing dam vertical line displacement monitoring instruments, avoid defects of various vertical line monitoring instruments, complement advantages and deficiencies, accurately and continuously monitor dam vertical line displacement changes in real time, reduce labor cost investment, improve vertical line monitoring precision and efficiency and save time cost.

A laser radar external parameter calibration method based on a tunnel wall comprises the following steps: stopping a train in a long straight tunnel, obtaining point cloud data through a laser radar, naming the point cloud data as first point cloud data, filtering and clustering the first point cloud, extracting to obtain noisy-point-removed point cloud data, naming the point cloud data as second point cloud data, calculating a loss function for the second point cloud data, and calculating an external parameter of the laser radar according to the loss function. And optimizing the loss function by using an optimization theory to obtain an optimal parameter which is an external parameter between the laser radar needing to be calibrated and the vehicle coordinate system. The method is high in automation degree, does not need any calibration target plate, does not need GNSS / IMU / camera and other sensor signals, does not need carrier motion, does not need additional measurement equipment such as a total station / three-coordinate instrument and does not need a special calibration field, realizes one-key full-automatic calibration, and is extremely low in implementation complexity and high in robustness.