A parametric transducer for the detection of small displacements
Abstract
A parametric transducer used for the detection of vibrations in a gravitational antenna is described. Several noise sources were examined in detail, comparing the noise sensitivity of the described transducer with previously described transducers. Performance comparable to that of a microwave detector is attainable operating at much lower frequencies without using very high Q resonant circuits.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- March 1979
- Bibcode:
- 1979STIN...8024568B
- Keywords:
-
- Gravitational Wave Antennas;
- Parametric Amplifiers;
- Piezoelectric Gages;
- Transducers;
- Capacitors;
- Microwaves;
- Noise Spectra;
- Resonance Probes;
- Signal To Noise Ratios;
- Electronics and Electrical Engineering