Tensile Young's modulus measuring instrument frictionless mouable platform

Abstract

The invention relates to a stretching Yang modulus meter zero-friction active platform that is formed by optical level shoe plate, active platform and batten. The active platform is set on the optical level shoe plate, and the active clip head is set in the axial canal. The diameter of axial canal is 10-15mm larger that the outer diameter of the active clipping head, and only 1-2mm larger than the active clipping head. The batten is set on the active platform, and is connected to optical level shoe plate by two nuts. Adjusting the base nut of the adjusting instrument to make the clipping head discontact to optical level shoe plate axial canal wall, and adjusting the active platform and the clipping head, and fixing the active platform on the optical level shoe plate by the two nuts, the active clipping head would not have friction and it is easy to operate.

Description

Technical field:

[0001] The invention relates to a frictionless movable platform of a tensile Young's modulus measuring instrument Background technique:

[0002] The measurement of Young's modulus of elasticity by the existing tensile method is an important classical physical experiment, and it is one of the physical experiments that many college students must do. However, it is difficult to completely eliminate the contact friction between the movable chuck of the experimental instrument and the hole wall in the optical lever support plate, so the measurement results are always affected. In order to eliminate this frictional force, the instrument manufacturer designed and installed a level bubble in the center of the instrument base, but due to the long instrument pillar (usually 2 meters or even longer) and other reasons, even if the level bubble is centered, the movable chuck is still biased. One side exceeds the allowable clearance of the instrument, and there is still ...

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