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Fiber optic based magnetic sensing apparatus, systems, and methods
Fiber optic based magnetic sensing apparatus, systems, and methods
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机译:基于光纤的磁感测设备,系统和方法
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摘要
In some embodiments, an apparatus and a system, as well as a method and an article, may operate to acquire a monitoring output from a first distributed feedback (DFB) fiber laser sensor at least partially bonded to a piezoelectric portion of a downhole device, to demodulate the monitoring output to determine a frequency shift in a lasing frequency of the DFB fiber laser sensor, and to correlate the frequency shift to a measure of magnetic field strength to determine a strength of a downhole magnetic field. Additional apparatus, systems, and methods are disclosed.
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