theory of dispersion applied to electro-optical distance measurement and angle measurement
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theory of dispersion applied to electro-optical distance measurement and angle measurement

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Published by Rijkscommissie voor Geodesie in Delft .
Written in English

Subjects:

  • Distances -- Measurement.,
  • Geometrical optics.,
  • Dispersion.

Book details:

Edition Notes

Includes bibliographical references.

Statementby J. C. de Munck.
SeriesNetherlands Geodetic Commission. Publications on geodesy. ;, new ser., v. 3, no. 4, Publications on geodesy (Netherlands. Rijkscommissie voor Geodesie) ;, new ser., v. 3., no. 4.
Classifications
LC ClassificationsQB296.N4 A3 vol. 3, no. 4, TA601 A3 vol. 3, no. 4
The Physical Object
Pagination48 p.
Number of Pages48
ID Numbers
Open LibraryOL5339041M
LC Control Number72192627

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the theory of dispersion applied to electro-optical distance measurement and angle measurementAuthor: J. C. De Munck. Optical methods for distance and displacement measurements. Garry Berkovic and Ehud Shafir. uction. In this tutorial we review various noncontact optical sensing techniques that can be used to measure distances to objects, and related parameters such as displacements, surface profiles, velocities and vibrations.   M.C. THOMPSON, Jr. and L.E. WOOD: “The use of atmospheric dispersion for refraction correction of optical distance measurements”, Proc. International Association of Geodesy Symposium on Electromagnetic Distance Measurement, Oxford, Cited by: In measurement method of dispersion characteristics of an optical fiber, a laser for measurement connected to one end of the fiber and variable in output light wavelength and an oscillation for modulating a measurement light signal sent out from the laser are provided. The modulation frequency of the output from the oscillator is used as an reference electric by:

Dispersion measurements with white-light interferometry measurement accuracy is applied to the determination of d2nydl2 and d3nydl3 of fused silica with an accuracy of 65 3 mm 22 and 61 3 10 3 mm23, respectively. Further applications are found in the measurement Dispersion measurements with white-light interferometry. White-light interferograms provide a simple, accurate, and physically intuitive picture of what happens to broadband optical pulses on transmission through, or reflection from, common optical materials. Quantitative measurement of group delay are made with an accuracy of ± fs and with high spectral resolution. This measurement accuracy is applied to the determination of d2n/dλ2 and d3n. incident angles for as large a range of angles and of spot positions as you can measure. Take at least 8 data points, recording the value of the incident angle (as judged by the position of the rotary table) and the distance from the undeviated spot position. 5. Convert the distances from the previous step to deviation angles δ[θ 1]. This can be done byFile Size: KB. The electro-optical properties of graphene represent the main role of ournumerical results. In the infrared wavelength range from to µm, the reflectanceproperties of the composite structures are numerically simulated by varying several parameterssuch as defect layer thickness, applied electrical field, and incident angle.

Get this from a library! The theory of dispersion applied to electro-optical distance measurement and angle measurement. [J C de Munck]. Dispersion is defined as the spreading of white light into its full spectrum of wavelengths. More technically, dispersion occurs whenever there is a process that changes the direction of light in a manner that depends on wavelength. Dispersion, as a general phenomenon, can occur for any type of wave and always involves wavelength-dependent processes. 2. MEASUREMENT PRINCIPLE & ERROR OF EDM Measurement principle of EDM The principle of the measurement device, EDM, which is currently used, is that it calculates the distance by measuring the phase shift during the radiated light wave from EDM's main unit returns by being reflected through the reflector, which is positioned at measurement. frequency of applied electric field are shown in (Fig. ) The equations () and () are commonly known as Debye Dispersion formulae which are referred specially to the situation where equilibrium is attained exponentially with time when a constant external electric field is imposed on a dielectric.