Paper
13 February 1990 Balancing A Fiber Optic Magnetic Gradiometer
Ray Rempt
Author Affiliations +
Abstract
A balancing procedure for a fiber optic magnetic gradiometer is presented. The gradiometer is a Mach-Zehnder interferometer with both arms configured as measurement arms. The procedure describes the nulling of DC environmental fields at each of the transducers without the difficulties associated with hysteresis when a previously nulled transducer is re-energized. The use of an additional AC signal at a frequency small compared with the dither is discussed, and balancing data are presented demonstrating the procedure.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ray Rempt "Balancing A Fiber Optic Magnetic Gradiometer", Proc. SPIE 1169, Fiber Optic and Laser Sensors VII, (13 February 1990); https://doi.org/10.1117/12.963037
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KEYWORDS
Transducers

Fiber optics

Magnetism

Interferometers

Nulling interferometry

Electronics

Fiber lasers

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