DC fibre-optic accelerometer with sub-μg sensitivity

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DC fibre-optic accelerometer with sub-μg sensitivity

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© The Institution of Electrical Engineers
Published

We describe a fibre-optic accelerometer, based on the technique of nonlinear displacement-to-strain conversion (NDSC), suitable for use at DC and low frequencies. The sensor exhibits a minimum detectable acceleration of less than 1 μg RMS (g = 9.8 m/s2) at 0.5 Hz and a linear dynamic range greater than 106.

Inspec keywords: accelerometers; fibre optic sensors

Other keywords: nonlinear displacement-to-strain conversion; minimum detectable acceleration; sensitivity sub-micro-g; NDSC; low frequencies; DC fibre-optic accelerometer; linear dynamic range

Subjects: Velocity, acceleration and rotation measurement; Sensing and detecting devices; Fibre optics and fibre waveguides; Velocity, acceleration and rotation control; Velocity, acceleration and rotation measurement; Sensing devices and transducers; Nonelectric transducers and sensing devices; Fibre optics; Fibre optic sensors

References

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      • A.B. Tveten , A. Dandridge , C.M. Davis , T.G. Giallorenzi . Fiber-optic accelerometer. Electron. Lett. , 854 - 856
    3. 3)
      • A. Kersey , M. Corke , D.A. Jackson . Phase shift nulling DC-field fibre-optic magnetometer. Electron. Lett. , 573 - 574
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      • A. Kersey , F. Bucholtz , A. Dandridge . New nonlinear phase transduction method for DC measurand interferometric fibre sensors. Electron. Lett. , 75 - 76
    5. 5)
      • A.D. Kersey , D.A. Jackson , M. Corke . High-sensitivity fibre-optic accelerometer. Electron. Lett. , 559 - 561
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