Title :
About the possibilities of transverse thermoelectromotive force in the case of optical media
Author :
Ashcheulov, A.A. ; Gutsul, I.V. ; Rarenko, A.I.
Author_Institution :
Inst. of Thermoelectr., Chernivtsi
Abstract :
The possibility of conversion and registration of high intensive radiant flows by transverse thermo-emf arising in anisotropic media with different degrees of optical transparency has been studied. The basic expressions for the studied opticothermoelements as well as thermogenerators and receiving devices based on the use of the “transparent wall” method have been obtained. The possibilities of practical use have been analyzed and the demands on materials properties have been determined. The investigation results have allowed a method of high density radiant energy registration to be proposed. The device performances (volt-watts sensitivity, limit sensitivity, time constant, registration power limit value, optical transmissivity) have been obtained from the heat balance equation. Some constructions of optical and infrared wavelength radiant energy measuring devices have been produced
Keywords :
infrared detectors; pyroelectric detectors; thermoelectric devices; thermoelectricity; transparency; anisotropic media; heat balance equation; high density radiant energy registration; high intensive radiant flows; infrared wavelength radiant energy measuring devices; limit sensitivity; optical transmissivity; optical wavelength radiant energy measuring devices; opticothermoelements; partial absorption; pyrocalorimetric effect; registration power limit value; temperature distribution; thermogenerators; thermoreceiving devices; time constant; transparent wall method; transverse thermoelectromotive force; Anisotropic magnetoresistance; Energy measurement; Equations; Geometrical optics; Image motion analysis; Material properties; Optical devices; Optical sensors; Thermal force; Wavelength measurement;
Conference_Titel :
Thermoelectrics, 1997. Proceedings ICT '97. XVI International Conference on
Conference_Location :
Dresden
Print_ISBN :
0-7803-4057-4
DOI :
10.1109/ICT.1997.667643