Variable Band-Pass Wave Recorder and its Use at USNEL Oceanographic Tower.
NAVY ELECTRONICS LAB SAN DIEGO CALIF
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A pneumatically filtered wave recorder was built, using a differential pressure transducer as the sensing device. The pneumatic filters are analogous to electrical RC-circuits, passing waves only in a desired pass band. With the proper choice of filters, the tide or swell or both can be attenuated to a great extent. Hence the record obtained is free from swell noise so that longer period waves can be seen.
- Physical and Dynamic Oceanography
- Hydraulic and Pneumatic Equipment
- Recording and Playback Devices