Double parametric oscillator
Abstract
A simple calculation of the dynamic and noise characteristics of a parametric converter is presented. The system is composed of two harmonic oscillators with different frequency and mass coupled by a spring whose elastic constant varies harmonically at a third frequency equal to the sum or difference of the other two. For a gravitational antenna (first oscillator) coupled to an LC circuit (second oscillator) the analytical expressions show that the reaction time of the LC circuit could be too long, and can be diminished if its frequency is very high. A simplified analysis gives the noise components and signal strength for the case of the gravitational antenna.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 January 1983
 Bibcode:
 1983STIN...8414451F
 Keywords:

 Gravitational Wave Antennas;
 Mechanical Oscillators;
 Parametric Amplifiers;
 Signal To Noise Ratios;
 Dynamic Characteristics;
 Harmonic Oscillators;
 Noise Intensity;
 Noise Temperature;
 Resonant Frequencies;
 Electronics and Electrical Engineering