METHOD AND DEVICE FOR MEASURING INSIDE DIAMETER OF HOLLOW TRANSPARENT BODY

METHOD AND DEVICE FOR MEASURING INSIDE DIAMETER OF HOLLOW TRANSPARENT BODY

PROBLEM TO BE SOLVED: To provide a method and a device for measuring inside diameter of hollow transparent body capable of measuring the inside irregularities or curve of a glass bead. SOLUTION: This method for measuring the inside shape of a glass bead a that is a hollow transparent body comprises...

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Hauptverfasser: HATTA KIMIO, HASEBE YOJI
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TESTING
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creator HATTA KIMIO
HASEBE YOJI
description PROBLEM TO BE SOLVED: To provide a method and a device for measuring inside diameter of hollow transparent body capable of measuring the inside irregularities or curve of a glass bead. SOLUTION: This method for measuring the inside shape of a glass bead a that is a hollow transparent body comprises putting a plug to the opening part of the glass bead a to seal the cavity in the glass bead a; dipping the sealed glass bead a in a liquid 1 having the same refractive index as that of the glass bead a; irradiating the glass bead a with laser beam in this state; receiving the transmitted light by a optical sensor 44 divided in two; and detecting the inside ridge of the glass bead a from the light receiving quantity of each optical sensor 44a and 44b. The glass bead a is scanned in the axial direction (the vertical direction to the surface of Fig. 1) to measure the inside irregularities or curve of the through-hole b.
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subjects MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TESTING
title METHOD AND DEVICE FOR MEASURING INSIDE DIAMETER OF HOLLOW TRANSPARENT BODY
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