INSTALLATION OF A HIGH-SENSITIVITY LASER STRAINMETER IN A TUNNEL IN CENTRAL ITALY

Authors
CRESCENTINI L AMORUSO A FIOCCO G VISCONTI G
Citation
L. Crescentini et al., INSTALLATION OF A HIGH-SENSITIVITY LASER STRAINMETER IN A TUNNEL IN CENTRAL ITALY, Review of scientific instruments, 68(8), 1997, pp. 3206-3210
Citations number
17
Categorie Soggetti
Physics, Applied","Instument & Instrumentation
Journal title
Review of scientific instruments → ACNP
ISSN journal
00346748
Volume
68
Issue
8
Year of publication
1997
Pages
3206 - 3210
Database
ISI
SICI code
0034-6748(1997)68:8<3206:IOAHLS>2.0.ZU;2-T
Abstract
A new laser interferometer for geophysical purposes is being operated in an underground laboratory in central Italy. A simple electro-optica l technique has been used to limit the costs. The main characteristics of this instrument are: high sensitivity (Delta l/l approximate to 10 (-12)), fast sampling rate (up to 6 kHz), large dynamic range (unbound ed in principle), the capability of following strain rates as high as 7x10(-5) s(-1), and good reliability (two failures in nearly two years ). (C) 1997 American Institute of Physics.