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Title: Design and initial characterization of a compact, ultra high vacuum compatible, low frequency, tilt accelerometer

Abstract

A compact tilt accelerometer with high sensitivity at low frequency was designed to provide low frequency corrections for the feedback signal of the Advanced Laser Interferometer Gravitational Wave Observatory active seismic attenuation system. It has been developed using a Tungsten Carbide ceramic knife-edge hinge designed to avoid the mechanical 1/f noise believed to be intrinsic in polycrystalline metallic flexures. Design and construction details are presented; prototype data acquisition and control limitations are discussed. The instrument's characterization reported here shows that the hinge is compatible with being metal-hysteresis-free, and therefore also free of the 1/f noise generated by the dislocation Self-Organized Criticality in the metal. A tiltmeter of this kind will be effective to separate the ground tilt component from the signal of horizontal low frequency seismometers, and to correct the ill effects of microseismic tilt in advanced seismic attenuation systems.

Authors:
 [1]; ;  [2]; ;  [3];  [4]; ;  [5];  [6];  [7];  [8];  [9]
  1. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)
  2. California Institute of Technology, Pasadena, California 91125 (United States)
  3. Mayfield Senior School, 500 Bellefontaine Street Pasadena, California 91105 (United States)
  4. Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa (Italy)
  5. Arcadia High School, 180 Campus Drive, Arcadia, California 91007 (United States)
  6. Department of Precision Instrument, Tsinghua University, Beijing 100084 (China)
  7. Department of Computer Science, University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy)
  8. Sezione INFN Tor Vergata, via della Ricerca Scientfica 1, 00133 Roma (Italy)
  9. School of Physics, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, Western Australia 6009 (Australia)
Publication Date:
OSTI Identifier:
22308690
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 85; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCELEROMETERS; BACKGROUND NOISE; CONSTRUCTION; DATA ACQUISITION; DESIGN; DISLOCATIONS; GRAVITATIONAL WAVES; HYSTERESIS; INTERFEROMETERS; LASERS; METALS; POLYCRYSTALS; PRESSURE RANGE MICRO PA; SENSITIVITY; TUNGSTEN CARBIDES

Citation Formats

O’Toole, A., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com, Peña Arellano, F. E., Rodionov, A. V., Kim, C., Shaner, M., Asadoor, M., Sobacchi, E., Dergachev, V., DeSalvo, R., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com, Bhawal, A., Gong, P., Lottarini, A., Minenkov, Y., and Murphy, C. Design and initial characterization of a compact, ultra high vacuum compatible, low frequency, tilt accelerometer. United States: N. p., 2014. Web. doi:10.1063/1.4890285.
O’Toole, A., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com, Peña Arellano, F. E., Rodionov, A. V., Kim, C., Shaner, M., Asadoor, M., Sobacchi, E., Dergachev, V., DeSalvo, R., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com, Bhawal, A., Gong, P., Lottarini, A., Minenkov, Y., & Murphy, C. Design and initial characterization of a compact, ultra high vacuum compatible, low frequency, tilt accelerometer. United States. https://doi.org/10.1063/1.4890285
O’Toole, A., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com, Peña Arellano, F. E., Rodionov, A. V., Kim, C., Shaner, M., Asadoor, M., Sobacchi, E., Dergachev, V., DeSalvo, R., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com, Bhawal, A., Gong, P., Lottarini, A., Minenkov, Y., and Murphy, C. 2014. "Design and initial characterization of a compact, ultra high vacuum compatible, low frequency, tilt accelerometer". United States. https://doi.org/10.1063/1.4890285.
@article{osti_22308690,
title = {Design and initial characterization of a compact, ultra high vacuum compatible, low frequency, tilt accelerometer},
author = {O’Toole, A., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com and Peña Arellano, F. E. and Rodionov, A. V. and Kim, C. and Shaner, M. and Asadoor, M. and Sobacchi, E. and Dergachev, V. and DeSalvo, R., E-mail: amandajotoole@gmail.com, E-mail: riccardo.desalvo@gmail.com and Bhawal, A. and Gong, P. and Lottarini, A. and Minenkov, Y. and Murphy, C.},
abstractNote = {A compact tilt accelerometer with high sensitivity at low frequency was designed to provide low frequency corrections for the feedback signal of the Advanced Laser Interferometer Gravitational Wave Observatory active seismic attenuation system. It has been developed using a Tungsten Carbide ceramic knife-edge hinge designed to avoid the mechanical 1/f noise believed to be intrinsic in polycrystalline metallic flexures. Design and construction details are presented; prototype data acquisition and control limitations are discussed. The instrument's characterization reported here shows that the hinge is compatible with being metal-hysteresis-free, and therefore also free of the 1/f noise generated by the dislocation Self-Organized Criticality in the metal. A tiltmeter of this kind will be effective to separate the ground tilt component from the signal of horizontal low frequency seismometers, and to correct the ill effects of microseismic tilt in advanced seismic attenuation systems.},
doi = {10.1063/1.4890285},
url = {https://www.osti.gov/biblio/22308690}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 7,
volume = 85,
place = {United States},
year = {Tue Jul 15 00:00:00 EDT 2014},
month = {Tue Jul 15 00:00:00 EDT 2014}
}