Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/2118
DC Field | Value | Language |
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dc.contributor.authorall | Bertolini, A.; Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.contributor.authorall | Beverini, N.; Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.contributor.authorall | De Michele, A.; Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.contributor.authorall | Fidecaro, F.; Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.contributor.authorall | Mango, F.; Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.date.accessioned | 2007-05-15T09:53:19Z | en |
dc.date.available | 2007-05-15T09:53:19Z | en |
dc.date.issued | 2006-08 | en |
dc.identifier.uri | http://hdl.handle.net/2122/2118 | en |
dc.description.abstract | Gradiometric gravimetry is a survey technique widely used in geological structure investigation. This work demonstrates the feasibility of a new class of low frequency accelerometers for geodynamics studies and space applications. We present the design features of a new low noise single-axis differential accelerometer; the sensor is suitable to be used in a Gravity Gradiometer (GG) system for land geophysical survey and gravity gradient measurements. A resolution of 1 Eötvös (1 Eö=10−9s−2) at one sample per second is achievable in a compact, lightweight (less than 2 kg) portable instrument, operating at room temperature. The basic components of the sensor are two identical rigidly connected accelerometers separated by a 15-cm baseline vector and the useful signal is extracted as the subtraction of the two outputs, by means of an interferometric microwave readout system. The structure will be engraved in a monocrystal of sapphire by means of Computer-Numerically-Controlled (CNC) ultrasonic machining: the material was chosen because of its unique mix of outstanding mechanical and dielectric properties. | en |
dc.format.extent | 623911 bytes | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | English | en |
dc.relation.ispartofseries | 4-5/49 (2006) | en |
dc.subject | gradiometric gravimeter | en |
dc.subject | accelerometer | en |
dc.subject | Whispering gallery cavity | en |
dc.title | A sapphire monolithic differential accelerometer as core sensor for gravity gradiometric geophysical instrumentation | en |
dc.type | article | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.02. Gravity methods | en |
dc.relation.references | ACERNESE, F. et al. (2004): A local control system for the test masses of the VIRGO gravitational wave detector, Astroparticle Phys., 20, 617-628. BERTOLINI, A., N. BEVERINI, G. DAL LAGO, R. DESALVO, F. FIDECARO, F. FRANCESCONI, M. FRANCESCONI and G. OMICCIOLI (2003): A 5-axis CNC ultrasonic cutting machine: design and preliminary test, LIGO Technical Note T020198-00. BLAIR, D.G., E.N. IVANOV and H. PENG (1992): Sapphire dielectric resonator transducers, J. Phys. D, 25, 1110. BLAIR, D.G., E.N. IVANOV and H. PENG (1994): An ultrahigh sensitivity sapphire transducer for vibration measurements, J. Phys. D, 27, 1150. BLAIR, D.G., E.N. IVANOV, M.E. TOBAR and B.D. CUTHBERTSON (1998): Sensitivity and optimization of a high-Q sapphire dielectric motion-sensing transducer, IEEE Trans. Ultrason. Ferroelect. Freq. Contr., 45, 1303-1313. CHAIN, H.A. and H.J. PAIK (1988a): Superconductive gravity gradiometer for sensitive gravity measurements, I. Theory, Phys. Rev. D, 35, 3551. CHAIN, H.A. and H.J. PAIK (1988b): Superconductive gravity gradiometer for sensitive gravity measurements, II. Experiment, Phys. Rev. D, 35, 3572. GOLDSTEIN, M.S. and J.J. BRETT (1998): Precision gravity gradiometer/AUV system, in Proceedings of the 1998 Workshop on Autonomous Underwater Vehicles, AUV’98, 167-174. LEE, J.B. (2001): FALCON gravity gradiometer technology, Exploration Geophys., 32, 247-251 (available on line at http://falcon.bhpbilliton.com/docs/falcon_gravity_gradiometer_ technology.pdf). MATTHEWS, R. (2002): Mobile Gravity Gradiometry, PhD Thesis (University of Western Australia), (unpublished). REBHAN, H., M. AGUIRRE and J. JOHANNESSEN (2000): The gravity field and steady-state ocean explorer mission - GOCE, ESA Earth Observation Q., 66, 6-11. RICHTER, B. and R.J. WARBURTON (1998): A new generation of superconducting gravimeters, in Proceedings of the 13th International Symposium on Earth Tides, Série Géophysique, Royal Observatory of Belgium, Brussel, 545-556. SNADDEN, M.J., J.M. MCGUIRK, P. BOUYER, K.G. HARITOS and M.A. KASEVICH (1998): Measurement of the Earth’s gravity gradient with an atom interferometer-based gravity gradiometer, Phys. Rev. Lett., 81, 971-974. TOBAR, M.E., A.J. GILES, S. EDWARDS and J. SEARLS (1993): High Q TE stabilised sapphire microwave resonators for low noise applications, in Proc. IEEE Frequency Control Symposium, U.S.A. VAN KANN, F.J., M.J. BUCKINGHAM, C. EDWARDS and R. MATTHEWS (1994): Performances of a superconducting gravity gradiometer, Physica B, 194 and 196, 61-62. | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Bertolini, A. | en |
dc.contributor.author | Beverini, N. | en |
dc.contributor.author | De Michele, A. | en |
dc.contributor.author | Fidecaro, F. | en |
dc.contributor.author | Mango, F. | en |
dc.contributor.department | Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.contributor.department | Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.contributor.department | Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.contributor.department | Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
dc.contributor.department | Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | UNIPI | - |
crisitem.author.dept | Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | - |
crisitem.author.dept | Università di Pisa | - |
crisitem.author.dept | Dipartimento di Fisica «E. Fermi», Università degli Studi di Pisa, and Istituto Nazionale di Fisica della Materia (INFM), CNR, Pisa, Italy | - |
crisitem.author.orcid | 0000-0002-2868-4235 | - |
crisitem.author.orcid | 0000-0002-6189-3311 | - |
crisitem.classification.parent | 04. Solid Earth | - |
Appears in Collections: | Annals of Geophysics |
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