Laser Shadow Method For Measuring The Diameter Of A Transparent Filament

1986 ◽  
Author(s):  
G. C. Dubbeldam
Keyword(s):  
Shadow Method ◽  
Laser Shadow

Ultrasonic inspection of welded joints by the mirror‐shadow method

2002 ◽  
Vol 16 (5) ◽  
pp. 408-411
Author(s):  
E M Komov ◽  
M E Komov ◽  
V V Sokovnin
Keyword(s):  
Welded Joints ◽  
Ultrasonic Inspection ◽  
Shadow Method

scholarly journals Measuring the diameter of a cylinder with automatic calibration

2021 ◽  
Vol 2057 (1) ◽  
pp. 012086
Author(s):  
S V Dvoynishnikov ◽  
G V Bakakin ◽  
V G Meledin ◽  
V V Rahmanov ◽  
O Yu Sadbakov
Keyword(s):  
Light Source ◽  
Measurement System ◽  
Automatic Calibration ◽  
Shadow Method ◽  
Measured Object ◽  
Calibration And Verification

Abstract The work aims at developing a method for measuring the diameter of cylindrical objects, eliminating the need for calibration and verification of the measurement system during operation. The system for measuring the diameter of cylindrical objects contains a photodetector and a light source located on opposite sides of the measured object to implement the shadow method. The proposed method is based on the measurement of two reference cylinders located in the measuring area for automatic calibration of the system at each measurement. It is shown that the proposed method provides stable reliable measurements with an error of less than 2 μm for the diameter of the measured cylindrical objects of up to 10 mm.

Theory and application of the laser shadow technique

1985 ◽  
Vol 3 (5) ◽  
pp. 277-282 ◽  
Author(s):  
T. Grandke
Keyword(s):  
Laser Shadow

The Shadow Method

1990 ◽  
pp. 239-240
Author(s):  
Josef Krautkrämer ◽  
Herbert Krautkrämer
Keyword(s):  
Shadow Method
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