Can a resonant-mass gravitational-wave detector have wideband sensitivity

Journal Article · Tue May 15 04:00:00 EDT 1984 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.29.2149· OSTI ID:6746981

Michelson, P F; Taber, R C

In principle, for an impulsive gravitational-wave signal, the signal-to-noise ratio for a resonant-mass antenna is independent of frequency if the limiting noise source is the antenna thermal noise. A gain-bandwidth restriction only arises when the coupling of the resonant antenna to the output amplifier is considered. Applying Bode's gain-bandwidth theorem we are able to derive in a general way the linear amplifier sensitivity limit for a resonant-mass detector. The practical bandwidth limits for a detector utilizing a superconducting inductive transducer are discussed. A fractional bandwidth of approx.0.17 appears feasible with current technology. Additional bandwidth and sensitivity can be achieved with an array of detectors.

• Research Organization: Department of Physics and High Energy Physics Laboratory, Stanford University, Stanford, California 94305
• OSTI ID: 6746981
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 29:10; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFIERS
ANTENNAS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
EQUIPMENT
GRAVITATIONAL WAVE DETECTORS
MEASURING INSTRUMENTS
NOISE
RADIATION DETECTORS
RESONANCE
SENSITIVITY ANALYSIS
SIGNAL-TO-NOISE RATIO
TEMPERATURE NOISE