Compact optical fibre current monitor with passive temperature stabilisation
Compact optical fibre current monitor with passive temperature stabilisation
Quasi-circularly birefringent fibre and broad-spectrum light-source are combined to obtain an accurate, compact and robust current monitor. Measurement repeatability of ±0.5%, a temperature drift of 0.05%/°C and a sensitivity of 1mA rms/Hz1/2 characterise the sensor. A number of optical current monitors incorporating low-birefringence fibre have been described. However, when such fibres are tightly coiled or subject to external forces, birefringence is induced, which reduces the current sensitivity. These effects render the device sensitive to external perturbations such as vibration and restrict the number of turns of small diameter which can be employed and thus no compact, robust and sensitive current monitors have been developed.
Optical Society of America
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Li, L.
3d47f862-e449-42d4-be13-5bf827cf8383
1988
Laming, R.I.
c86f359b-9145-4148-bc7d-ae4f3d272ca2
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Li, L.
3d47f862-e449-42d4-be13-5bf827cf8383
Laming, R.I., Payne, D.N. and Li, L.
(1988)
Compact optical fibre current monitor with passive temperature stabilisation.
In Proceedings of Optical Fiber Sensors.
Optical Society of America..
Record type:
Conference or Workshop Item
(Paper)
Abstract
Quasi-circularly birefringent fibre and broad-spectrum light-source are combined to obtain an accurate, compact and robust current monitor. Measurement repeatability of ±0.5%, a temperature drift of 0.05%/°C and a sensitivity of 1mA rms/Hz1/2 characterise the sensor. A number of optical current monitors incorporating low-birefringence fibre have been described. However, when such fibres are tightly coiled or subject to external forces, birefringence is induced, which reduces the current sensitivity. These effects render the device sensitive to external perturbations such as vibration and restrict the number of turns of small diameter which can be employed and thus no compact, robust and sensitive current monitors have been developed.
More information
Published date: 1988
Venue - Dates:
Optical Fiber Sensors (OFS), New Orleans, United States, 1988-01-27 - 1988-01-29
Identifiers
Local EPrints ID: 77603
URI: http://eprints.soton.ac.uk/id/eprint/77603
PURE UUID: e24ad6ae-8e48-47bd-82ce-7f9fe0f984df
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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:56
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Contributors
Author:
R.I. Laming
Author:
L. Li
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