Optical lever measuring system based on parallel flat plate

Abstract

The invention relates to an optical lever measuring system based on a parallel flat plate. The system includes a laser, an optical lever, a ruler, brackets, and a to-be-measured object. The laser is aone-word-line laser, the one-word laser is fixed on the bracket, and a ray of light emitted by the one-word laser is a horizontal ray of light; a first toe is disposed below one end of the optical lever, and the first toe is in contact with the to-be-measured object; a second toe and a third toe are disposed below the other end of the optical lever, a parallel flat plate is fixed on the upper portion of the optical lever, the optical lever is perpendicular to the parallel flat plate, the second toe, the third toe and the first toe are symmetrically distributed in a shape of a "D" device, andthe second toe and the third toe are placed on a fixed platform; when the optical lever is in a horizontal state, an emergent ray of light of the one-word laser is perpendicular to the parallel flat plate; and a ruler plane of the ruler is perpendicular to the emergent ray of light of the one-word laser. The system is simple and easy to set up, is convenient and fast to operate, and is high in measurement precision.

Description

technical field [0001] The invention belongs to the technical field of measurement, in particular to an optical lever measurement system based on a parallel plate. Background technique [0002] The optical lever is a commonly used optical magnification device with small displacement and angle. Chinese patent 2896220Y discloses an optical lever device for laser measurement of tiny lengths. The main structure of the device is a "T"-shaped bracket, a laser is installed above the bracket, and three "T"-shaped toes are placed below the bracket. The device It can measure small angles, and has simple structure and convenient operation. However, installing the laser on the bracket will increase the load of the bracket, which is not conducive to the adjustment of the laser and will have a certain impact on the measurement. Chinese patent 104865135A uses a common optical lever, that is, the form of placing a reflector on the optical lever to measure the Young's modulus of the metal ...

AI Technical Summary

Problems solved by technology

However, installing the laser on the bracket will increase the load of the bracket, which is not conducive to the adjustment of the laser and will have a certain impact on the measurement

Chinese patent 104865135A uses a common optical lever, that is, the form of placing a reflector on the optical lever to measure the Young's modulus of the metal wire. This method achieves a large measurement effect through the amplification of the light reflected by the optical lever on the scale, but This device has high requirements on the scale, the higher the magnification, the longer the scale, the length of the scale limits the magnification of the experimental device

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