The effective aperture of masked detectors
Abstract
The effective aperture of masked piezoelectric detectors was observed under certain conditions to be less than expected. The effect is explained in terms of internal acoustic absorption and reflection within the mask.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- April 1974
- Bibcode:
- 1974STIN...7513225F
- Keywords:
-
- Acoustic Measurement;
- Piezoelectric Gages;
- Transducers;
- Absorption;
- Holography;
- Nondestructive Tests;
- Instrumentation and Photography