Abstract
A simple, rugged and highly sensitive fibre optic tiltmeter has been designed and its prototype model tested. The sensor intensity modulates the light with the change in the level of Hg surface with tilt. Hence, producing a detector output proportional to the tilt angle. The most important attribute of the tiltmeter is its ability to measure tilts of the order of microradians with a high degree of precision, hence making it an important tool for geophysical monitoring. Besides, the dielectric construction and inherent compatibility with fibre optic telemetry make the sensor suitable for monitoring the conditions of hostile and remote sites of volcanoes. The prototype model has been developed using rugged and easy to handle plastic fibres and the results obtained were satisfactory with a sensitivity of approximately 1.0 mV/μradCitation
Rehman, M., Ahmed, W. and Ajmal, T. (1996) 'A fibre optic tiltmeter [for volcano monitoring]', Instrumentation and Measurement Technology Conference, IMTC-96, Quality Measurements: The Indispensable Bridge between Theory and Reality, Brussels, Belgium. Brussels: IEEE, vol.2, pp.1076-1079Additional Links
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=507330Type
Conference papers, meetings and proceedingsLanguage
enISBN
0780333128ae974a485f413a2113503eed53cd6c53
10.1109/IMTC.1996.507330