Falling body centroid coincidence degree measuring reference device

Abstract

The invention discloses a falling body centroid coincidence degree measuring reference device. The device comprises a measuring platform, a laser light source and a casing are arranged on the upper left end surface of the measuring platform, a fixing frame is fixedly connected with the upper right end surface of the measuring platform, a spectroscope is arranged on the upper end surface of the fixing frame, a cotton brush is pressed and connected tightly with the upper left end surface of the spectroscope, a hinge seat is fixedly connected with the upper end surface of the middle of the measuring platform, a rotary shaft is arranged in the upper side of the hinge seat, a rotary rod is rotatably connected with the hinge seat through a rotary shaft, a positioning block is fixedly connected with the upper left end surface of the rotary rod, and a guiding block is slidably connected with the outer surface of the middle of the rotary rod through a guiding hole. By means of the falling bodycentroid coincidence degree measuring reference device, sliding dust removing aiming at the surface of the spectroscope is achieved, pressing can be conducted in real time and a cleaning solution is provided, the dust removing quality of the spectroscope is effectively improved, the rapid dismantling of the cotton brush is achieved, and the cotton brush efficiency is effectively improved.

Description

Technical field [0001] The invention relates to the field of measuring the degree of coincidence of the center of mass of a falling body, in particular to a reference device for measuring the degree of coincidence of the center of mass of a falling body. Background technique [0002] In the classic laser interferometer absolute gravimeter research, the core measurement component is a falling body that is sensitive to the earth's gravitational field. The basic principle of gravity field measurement is based on the formation between the optical center of the falling body and the optical center of the reference prism when the falling body is in free fall. The point interference pattern, and the gravity field directly acts on the center of mass of the falling body. Therefore, the optical center and the center of mass of the falling body do not overlap, which will introduce larger measurement errors. [0003] At present, the existing reference device for measuring the coincidence degree...

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Problems solved by technology

[0003] At present, the existing reference device for measuring the coincidence degree of the center of mass of falling objects does not have a cotton brush sliding structure with adjustable pressing force and a squeeze liquid storage chamber structure, not only cannot realize sliding dust removal for the surface of the beam splitter, but also cannot Squeeze and provide cleaning fluid, resulting in dust on the surface of the spectroscope, which cannot guarantee the reflection effect of the laser light source. In addition, it does not have a quick-release cotton brush block structure. When the cotton brush needs to be replaced, the cotton brush cannot be replaced. Quick disassembly, the efficiency of replacing the cotton brush is relatively low

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