## Development of a Sensitive Superconducting Gravity Gradiometer for Geological and Navigational Applications, Volume 4011National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1986 - Gravimeters (Geophysical instruments) - 207 pages |

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### Contents

SUMMARY | 1 |

PART | 2 |

4a Transducer coupled to a SQUID through a transformer | 39 |

11 other sections not shown

### Common terms and phrases

1/f noise acceleration error acceleration noise acceleration signal acceleration transducers accelerometer mode angular acceleration angular motion axis baseline Brownian motion Brownian motion noise calibration centrifugal acceleration common acceleration common mode balance component accelerometers coupling defined dewar differential acceleration displacement effect electromagnetic error coefficients error sources filter finite fluctuations flux quantization Fourier transform gc(u gd(u gradio gradiometer assembly gradiometer mode gradiometer output gravity gradient signal H.A. Chan H.J. Paik heat-switch horizontal acceleration inductance inductor inertial instrument inverse square law low frequency noise low-pass filter magnetic measured meter misalignment modulation Nb wires noise spectrum nonlinearity obtained pancake coils Paper parameters pendulum pendulum action persistent currents platform proof mass resonance frequency scale factor Section sensing coils sensitive axes shield spectral density spring constant SQUID SQUID amplifier stored current superconducting circuit superconducting gradiometer superconducting gravity gradiometer Tc(u tensor thermal transducer transfer function tubing vacuum vector vertical vibration isolation