114results about How to "Reduce adjustment error" patented technology

The invention discloses a method for aligning a partial compensating lens in aspheric nonzero-digit interference detection. The aligning device is characterized in that fine light beams emitted by a laser are expanded by a collimating beam expanding system to form parallel broad light beams; after parallel light enters a beam splitting plate plated with a semi-reflective semi-transparent film, one part of incident light is reflected, and the reflected light beam is reflected by a plane reference mirror and then returns to the beam splitting plate again; the other part of incident light is transmitted, and the transmitted light beam spreads forwards, enters an auxiliary aligning panel and then returns; the returned reflection light and the returned transmission light meet at the beam splitting plate to generate interference and form an interference pattern; the interference pattern passes through an imaging system and is imaged at a detector; and the inclination of the aligning panel and the partial compensating lens relative to the incident light is adjusted to enable the detector to obtain a zero-fringe interference pattern; and the inclined alignment of the partial compensating lens is realized by moving the aligning panel. According to the method disclosed by the invention, the problem of aligning error of the partial compensating lens in aspheric nonzero-digit interference detection is solved, and the adjustment error of the detection result caused by mistaken alignment is reduced.

The invention discloses a film cutter capable of being adjusted in multiple directions. The film cutter comprises a cutter shaft, fixing grooves are formed in the surface of the cutter shaft in the axial direction, cutter sets are arranged on the surface of the cutter shaft at intervals, rotating sliding blocks are connected to the two ends of the cutter shaft, sliding grooves are formed in the rotating sliding blocks, and rotating sliding block holes are further formed in the ends, close to the sliding grooves, of the rotating sliding blocks; and the rotating sliding blocks are slidably connected with fixing blocks, rotating notches are formed in the fixing blocks, fixing holes are formed in the centers of the bottom faces of the rotating notches, and rotating grooves are formed between the fixing holes and the inner walls of the rotating notches. According to the film cutter, the cutter shaft, the rotating sliding blocks and the fixing blocks are connected in a matched mode, pairwisemutual rotation is achieved, adjustment of the three-dimensional spatial position of the cutter on the cutter shaft is achieved, and multi-angle and multi-direction changes are achieved; and angles are engraved on the surfaces of the fixing blocks, accurate adjustment can be achieved according to the angles, and adjusting errors are reduced.

A dual-purpose facility of continuous hot-dip coating and continuous annealing is configured so as to be switched between a continuous hot-dip coated material production line and a continuous annealed material production line, and includes a gas discharge path that discharges atmosphere gas in an annealing furnace from a gas discharge port provided in an outlet side of the annealing furnace out of the annealing furnace and a path opening and closing unit for opening and closing the gas discharge path. The path opening and closing unit opens the gas discharge path when the dual-purpose facility is used as the continuous hot-dip coated material production line and closes the gas discharge path when the dual-purpose facility is used as the continuous annealed material production line.