1976
DOI: 10.1364/ao.15.001432
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Remote measurement of distance and thickness using a deflected laser beam

Abstract: A remote optical technique of measuring distance and thickness is described which relies on a measurement of the time a laser beam deflected at a definite speed takes to travel from a starting point on a reference plane to a final point on the object. Its significant features are high measuring speed, high resolution, flexibility with regard to measurement range and distance between reference plane and probe, insensitivity to surface properties of the object, and rugged design. It is, therefore, suitable for a… Show more

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Cited by 18 publications
(4 citation statements)
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“…2 Laser range finder and inspection systems have found many applications, including manufacturing and automated control systems.…”
Section: Introductionmentioning
confidence: 99%
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“…2 Laser range finder and inspection systems have found many applications, including manufacturing and automated control systems.…”
Section: Introductionmentioning
confidence: 99%
“…Online surface quality inspection of the product is becoming a key factor for continuous casting-direct rolling and cost minimisation in any industry. 2 Laser range finder and inspection systems have found many applications, including manufacturing and automated control systems.…”
Section: Introductionmentioning
confidence: 99%
“…These systems are essential tools for the implementation of modern statistical process control procedures. Non-contact methods of measuring thickness and distance with laser sensors have already been widely reported in the literature [6][7][8][9]. Very high orders of accuracy in the measurement of lengths at close ranges of up to several meters are achieved by interferometric methods [10,11].…”
Section: Introductionmentioning
confidence: 99%
“…Utilizando-se no lugar do espelho m6vel, urn defletor acustico-6ptico, altas precisoes sao alcan9adas, em distancias de ate dezenas de metros. KOEBNER (1984), BODLAJ e KLEMENT (1976). E importante notar que a precisao de medida de todos os modelos de MDTs aqui descritos, depende fundamentalmente do tamanho do feixe visualizado sobre 0 alvo e da qualidade da sua imagem formada sobre 0 sensor.…”
Section: Sensor De Posi~io De Imagemunclassified