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Spherometer is a physics instrument that is designed to determine the radius of curvature of any cured surface or sphere. Its basic parts are three outer legs, a central moving leg (upward or downward) and a reading device for calculating the distance moved by the central leg.
Posted by Tradeindia user (12-08-2020)
Pitch is defined as the distance moved by the central moving leg from its resting point to the bottom in on complete rotation. Insert a sheet of paper to ensure no space is left between the central leg and the base.
Spherometers is commonly used to measure the radius of curvature of lens, any spherical surfaces, thickness of thin plate; to measure the depression in flat plates and a microscope slide; for inspecting oil field pipe.