6results about How to "Calibration is easy" patented technology

The invention relates to a deep-sea flexible inductive pressure sensor and an automatic calibration method thereof. The deep-sea flexible inductive pressure sensor is mainly applied to pressure measurement when a deep-sea flexible gripper grabs an object. The sensor adopts a flexible printed circuit board and an inductance type pressure sensing technology, and comprises the flexible printed circuit board, a coil inductor drawn on the flexible printed circuit board, an ultra-soft silica gel layer uniformly coated on the flexible printed circuit board, a copper foil layer covered on the ultra-soft silica gel layer and a sealing film covered on the copper foil layer. When the pressure acts, the deformation of the copper foil causes the change of the inductance value of the coil, and the pressure detection is realized by detecting the inductance change. The sensor provided by the invention can provide high-sensitivity and high-reliability pressure measurement in an environment with high hydrostatic pressure and dynamic grasping pressure, can maintain high adaptability and reliability in a deep sea environment, and provides reliable technical support for deep sea exploration and engineering application.

The utility model provides an equatorial telescope adjusting device, which is arranged between a support frame and a telescope and comprises a connecting seat and an elevation angle adjusting component, the connecting base is connected to the supporting frame. The elevation angle adjusting assembly comprises a first elevation angle seat, a second elevation angle seat and a fine adjusting structure, the first elevation angle seat is rotatably connected to the connecting seat, and the rotating axis of the first elevation angle seat is horizontally arranged so that the relative elevation angle between the first elevation angle seat and the connecting seat can be adjusted; the second elevation angle seat is connected with the telescope, the second elevation angle seat is rotatably connected to the first elevation angle seat, and the rotation axis of the second elevation angle seat is horizontally arranged; the two ends of the fine adjustment structure are rotatably connected to the first elevation angle seat and the second elevation angle seat respectively, and the two ends of the fine adjustment structure can be relatively close to or far away from each other to adjust the relative elevation angle between the second elevation angle seat and the first elevation angle seat, so that the angle of the telescope can be adjusted quickly and accurately, the calibration operation of the astronomical telescope is simplified, and the calibration efficiency of the astronomical telescope is improved. And the control efficiency is improved.

The application provides a plane constraint-based spectral confocal probe pose calibration method and device, and belongs to the field of precision measurement and instrument technology.The method comprises the following steps: firstly, at least three non-coplanar plane standard parts are measured by using a contact probe, and through coordinate conversion and fitting, equations of the standard planes in a machine coordinate system are accurately established; then, the same plane parts are measured by using a spectral confocal probe, and the obtained measurement point coordinates and distance values are combined with the known plane equations to construct a linear over-determined equation set about the probe pose parameters (including an optical axis direction vector and a space position vector); finally, the equation set is solved by using a least square method to obtain accurate pose parameters.The application converts a nonlinear problem into a linear solution, avoids iterative calculation, and significantly improves the calibration efficiency and accuracy.Meanwhile, the use of plane constraint allows the measurement points to be uniformly distributed, effectively reduces the equation set ill-conditioning, and enhances the robustness of the calibration process.

The invention relates to the technical field of flying probe test machine calibration, and discloses a flying probe test machine calibration device and method based on a high-resolution camera, the device comprises a correction plate and a CCD camera, the correction plate is fixedly installed on a flying probe test machine, the correction plate is provided with through holes distributed in an array, the through holes are distributed at equal division points on the correction plate, and the CCD camera is arranged on the correction plate. The two CCD cameras are installed on the flying probe testing machine, and light rays in the through holes are detected through the CCD cameras so that the flying probe testing machine can be calibrated. According to the calibration device, the two CCD cameras are installed on the flying probe testing machine, mechanical errors of the flying probe testing machine are calibrated through the high-resolution CCD cameras, a visual control system is fully utilized, a probe of the flying probe testing machine is accurately pricked in the center position of a corresponding testing bonding pad on a circuit board, the production efficiency of a PCB is improved, and the production cost is reduced. The cost is reduced, the calibration operation of the calibration method is simple, the calibration steps are few, and the calibration efficiency and the calibration precision are improved.

The application provides a mower calibration method and device, electronic equipment, a storage medium and a mower. The method comprises the following steps: collecting a preset number of position data of the mower during movement relative to a charging pile; performing straight line fitting using the preset number of position data; and if the preset number of position data fits a straight line, determining the orientation of the charging pile according to the slope of the fitted straight line. Accordingly, the application can accurately determine the orientation of the charging pile, and has the advantages of high calibration accuracy and low calibration cost.