3 results about "Installation Error" patented technology

The invention discloses a strip shape signal error compensation method based on strip shape detection roll installation accuracy, which comprises the following steps of: constructing a strip shape signal compensation model aiming at strip shape detection roll installation errors based on a geometrical relationship between a strip shape detection roll and a guide roll or a winding drum and a cold rolled steel strip shape detection theory; and aiming at two installation ways, i.e. a fixed wrap angle way and a dynamic wrap angle way, establishing a corresponding tensile stress dynamic deviation calculation formula to compensate online strip signals of cold rolled steel strips in real time. By considering the influence of the strip shape detection roll installation accuracy on original strip shape signals, the online strip shape detection accuracy of a contact-type strip shape detection instrument is improved to the utmost extent, the actual strip shape situation of the online cold rolled steel strips is more really reflected, the strip shape control performance of a rolling mill is improved, and stable, reliable and real-time strip shape data can be provided for a strip shape closed-loop control system.

The invention discloses a calibration method and system for a non-orthogonal error of a gyroscope. The method comprises the steps that step S110, each axial non-orthogonal error of the gyroscope on aninitialized cradle head is zero, and each joint angle of each shaft of the cradle head is controlled at an initial zero position; S120, one shaft of the cradle head is controlled to rotate a preset angle in the corresponding axial direction, and the rotation frequency is updated; step 130, a change value of the joint angle of each shaft of the cradle head and each axial angular velocity measuredby the gyroscope are acquired, an axial non-orthogonal error of a rotating shaft is calculated, and each axial angular velocity is calibrated; S140, whether or not preset conditions are met is judged,if not, S120 is returned to be executed; if yes, the shaft is controlled to return to the initial zero position; S150, whether or not the calibration of each shaft is completed is judged, and if not,other shafts are controlled to be subjected to S120-S140, and if yes, ending is conducted. The calibration method and system for the non-orthogonal error of the gyroscope directly calibrate the non-orthogonal error by arranging the gyroscope on the cradle head to avoid the influence of the installation error.

The invention provides a connection device and a lifting mechanism. A first through hole is formed in a first flange of a linear bearing sleeve, a second end of a connection vertical post penetrates through the first through hole and is in clearance fit with the first through hole, the second end of the connection vertical post is tightly connected with the first flange by a fastening piece, so that the length of the connection vertical post actually having a connection effect can be flexibly adjusted, and the maximum height of a lifting shaft extending to a process cavity chamber is flexibly adjusted; the distance between the linear bearing sleeve and an air cylinder installation plate is adjusted with regard to part processing and installation errors, so that the maximum height of the lifting shaft extending to the cavity chamber is ensured, and a wafer taking/placing process station and a degassing or annealing process station is accurately positioned; and the distance between the linear bearing sleeve and the air cylinder installation plate also can be flexibly adjusted within a certain range according to the size of a heating part, and the application universality is improved.