Abstract
A solid-state image-sensing camera composed of a linear array of tiny silicon photodiodes is found to be effective for measuring the length between gloomy but clear marks and the velocity of a straight moving mark printed on the specimen. It can be applied to various kinds of measurement by exchanging the computer programs for processing the data. In this report the measurement errors due to both the size of the photodiode and its binary signal are discussed from the geometrical viewpoint. Program for measuring the length and velocity are developed theoretically and their validity is verified experimentally.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Referencens
Bruning, J.H., Herriott, D.R., Garagher, J.E., Rosenfeld, D.P., White, A.D. andBrangaccio, D., “Digital Wavefront Measuring Interferometer for Testing Optical Surfaces and Lenses,”Appl. Opt.,13 (11),2693–2703 (Nov.1974).
Seguchi, Y., Tomita, Y. andWatanabe, M., “Computer Aided Fringe-Pattern Analyzer—A Case of Photoelastic Fringe,”Experimental Mechanics,19 (10),362–370 (Oct.1979).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sawada, T. Application of an image-sensing camera to the measurement of length and velocity of marks printed on specimens. Experimental Mechanics 26, 22–27 (1986). https://doi.org/10.1007/BF02319951
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02319951