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Optimization of the piezoelectric transducer for a cryogenic gravitational wave antenna

Technical Report ·
OSTI ID:6582424
; ;
The sensitivity of a gravitational wave antenna, Weber type, depends on the characteristics of the cylindrical bar, the piezoelectric transducer, and the electronic amplifier. For a given bar it is possible to obtain the highest sensitivity by a proper choice of the total number of piezoelectric ceramics employed and of the number of the FETs used in the preamplifier. The optimization for the intermediate cryogenic bar gives a sensitivity of 11 GPU at 4.2 K. This sensitivity is obtained with two ceramics GULTON 1408 in parallel and a 4 FET preamplifier.
Research Organization:
SEE CODE- 1908825 Laboratorio di Ricerce e Technologia per lo Studio del Plasma nello Spazio, Frescati (Italy)
OSTI ID:
6582424
Report Number(s):
N-78-14285; LPS-77-11
Country of Publication:
United States
Language:
English

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Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTENNAS
CYLINDERS
ELECTRICAL EQUIPMENT
ELECTRICITY
EQUIPMENT
GRAVITATIONAL WAVE DETECTORS
MEASURING INSTRUMENTS
OPTIMIZATION
PIEZOELECTRICITY
RADIATION DETECTORS
SENSITIVITY
TRANSDUCERS
ULTRALOW TEMPERATURE