Oscillators for free-mass gravitational-wave antennas

Details Oscillators for free-mass gravitational-wave antennas Oscillators for free-mass gravitational-wave antennas

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pzetf..55..424b&link_type=abstract

Pis'ma v Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki (ISSN 0370-274X), vol. 55, no. 7-8, p. 424-426.

Physics

Antenna Design, Gravitational Wave Antennas, Mechanical Oscillators, Modulus Of Elasticity, Noise Reduction, Thermal Noise

Scientific paper

It is shown that it is possible to significantly increase the sensitivity of free-mass gravitational antennas by using receptors (which are low-frequency mechanical oscillators) made from fused quartz. Using such an oscillator, it was possible to reach a value of 1.2 x 10 exp 7 sec for the oscillation damping time. For such cases, the sensitivity limits for ordinary coordinate measurements can be constrained by the standard quantum threshold, rather than by thermal noise.

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