Electronics Letters · 1984 · 16 citations · 1 references
EngineeringElectrical EngineeringElectromagnetismOpticsSensorsFiber OpticsMagnetic SensorsOptical FibersOptical InstrumentsOptical SensingOptical SensorsFiber-optic SensingFiber-optic SensorsMagnetic Field SensingMagnetic Field SensorsMagneto-optic SensorsMagnetometer DetectionMagnetometer InstrumentationMagnetometers
A closed-loop DC-field fibre-optic magnetometer is described which utilises the dependence of the AC magneto-strictive responsitivity of a metallic glass sensing element on the local DC field in order to detect low-frequency or DC changes in the total local field. A detection sensitivity of -2 μGs has been demonstrated at frequencies below 2 Hz.
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