Talbot effect application: measurement of distance with a Fourier-transform method

Describes a distance measurement system, with no moving parts, that uses the diffraction properties of gratings - the Talbot effect - to obtain measurement through a Fourier transform method. The system is very compact and easy to use. It only requires simple optical components - a laser diode and a...

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Bibliographic Details
Published in:Measurement science & technology 2000-01, Vol.11 (1), p.77-82
Main Authors: Spagnolo, G Schirripa, Ambrosini, D
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Measurements common to several branches of physics and astronomy
Metrology, measurements and laboratory procedures
Optical instruments, equipment and techniques
Optoelectronic devices
Physics
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Spatial dimensions (e.g.: position, lengths, volume, angles, displacements, including nanometer-scale displacements)
Spatial dimensions (eg, position, lengths, volume, angles, displacements, including nanometer-scale displacements)
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Summary:Describes a distance measurement system, with no moving parts, that uses the diffraction properties of gratings - the Talbot effect - to obtain measurement through a Fourier transform method. The system is very compact and easy to use. It only requires simple optical components - a laser diode and a digital camera - and a computer. (Original abstract - amended)
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/11/1/312