Sensitivity of Miniaturized Photo-elastic Transducer for Small Force Sensing

Autor:	Naceur-Eddine KHELIFA, Marc HIMBERT
Jazyk:	angličtina
Rok vydání:	2015
Předmět:	Sensitivity lcsh:Technology (General) Stress birefringence Physics::Optics Beat frequency lcsh:T1-995 Small force sensor Solid-state laser Photo-elastic effect
Zdroj:	Sensors & Transducers, Vol 184, Iss 1, Pp 19-25 (2015)
ISSN:	1726-5479 2306-8515
Popis:	The sensitivity of a force sensor based on photo-elastic effect in a monolithic Nd- YAG laser depends strongly on the geometrical shape and dimensions of the laser medium. The theoretical predictions of sensitivity are in good agreement with first results obtained with a plano- concave cylindrical crystal of (4´4) mm and some values reported by other groups. However, for small size of the laser sensor, the developed model predicts sensitivity, about 30 % higher than the values given by available experiments. In this paper, we present experimental results obtained with a force sensor using a miniaturized monolithic cylindrical Nd-YAG laser of dimensions (2´3) mm with suitable optical coatings on its plane end faces. The new result of measurement concerning the sensitivity has allowed us to refine the theoretical model to treat photo-elastic force sensors with small dimensions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doajarticles::507784fd3d69a3cd10288deaf00a62c9 http://www.sensorsportal.com/HTML/DIGEST/january_2015/Vol_184/P_2581.pdf Zobrazit plný text záznamu