title: Fast new technique for measuring the resonance frequencies of high Q systems.
abstract: A technique for measuring the resonance frequencies of an aluminum bar (used as a gravitational antenna) with high accuracy is presented. This method is based on the positive feedback of the bar, and is much faster than the others commonly in use.
authors.affiliation: Istituto di Fisica ''G. Marconi,'' Universita di Roma, Rome, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Cosmelli
authors.forename: S
authors.initials: S
authors.lastname: Frasca