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31 (0,108s)

Result

MEASUREMENT OF PULSED QUANTITIES BY ORTHOCONJUGATE RETROREFLECTOR

. An experimental fiber optic current sensor has been designed and realized. The orthoconjugate retroreflector is exploited for the light reflection and polarization rotation. The sensor is setup utilizing orthoconjugate

JA - Elektronika a optoelektronika, elektrotechnika

  • 2009
  • D
Result

The compensation of linear birefringence in magneto-optical sensors

Basic properties of magneto-optical fiber current sensors are described in the paper. The disadvantage of fiber sensor is the presence of linear birefringence which decreases sensor sensitivity. Some methods for linear birefrnigence are presented. Th...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2008
  • Jx
Result

Pulsed magnetic field fiber optic sensor based on orthoconjugate retroreflector

In order to the fiber linear birefringence compensation a promising method was chosen for pulsed current sensor design. The method employs orthogonal polarization conjugation by the back direction propagation of the light wave in the fiber. The Jones...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2009
  • D
Result

Hollow retroreflector array based on composite

Retroreflectors serve as passive elements (mirrors) for localization of satellites from Earth by SLR stations. Hollow retroreflector array based on composite is a lightweight alternative to current glass retroreflectors tha...

JV - Kosmické technologie

  • 2014
  • Gfunk
Result

TEORETICKÁ ANALÝZA ORTOKONJUGAČNÍHO REFLEKTORU

One of the most considerable spurious effect in fiber optic sensors is the polarization state degeneration. It is caused by the linear birefringence, inherent and induced. The paper presents analysis of orthoconjugate method for linear biref...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2008
  • D
Result

Development of methods for the identification and subsequent detection of tampering and modification of components of ICT in terms of measuring the KV- final report

The theoretical definition of retroreflektorů with the specifications and requirements of the energy balance of the subsystems for various cases of interception devices. Solutions of retroreflector models and results of measurement....

Electrical and electronic engineering

  • 2017
  • Vsouhrn
Result

Comment on 'Relativistic theory of the falling retroreflector gravimeter'

In the paper by Ashby (2018 Metrologia 55 1-10) the correction due to the time delay of light propagated through the prism retroreflector of absolute gravimeters is discussed. Accordingly, the correction of about -6.8 microgal should be appl...

Optics (including laser optics and quantum optics)

  • 2018
  • Jimp
  • Link
Result

Frequency Coded Retroreflective Landmark for 230 GHz Indoor Self-Localization Systems

This paper presents a planar Luneburg lens frequency-coded retroreflector based on a high-resistive silicon (HR-Si) photonic-crystal (PhC) high-Q tag with two resonators working at 237 GHz and 243 GHz. A characterization of the retrorefl...

Electrical and electronic engineering

  • 2021
  • D
  • Link
Result

Method of measuring straightness of holes and apparatus for making the same

Patent represents a solution for measurement of straightness of long bores, typically barrels of firearms. The solution is based on motion of a calibrated retroreflector through the bore while it follows the its indirectness. Deviations from...

BH - Optika, masery a lasery

  • 2015
  • P
  • Link
Result

An omnidirectional retroreflector based on the transmutation of dielectric singularities

an omnidirectional retroreflector, a device for faithfully reflecting images and for creating...

BE - Teoretická fyzika

  • 2009
  • Jx
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