10-APR-13
1
TOOL0610
TOOL0610
Neyrpic bubbler pressure gauge
An early water level sensor comprising a seabed-mounted gas outlet and a manometer to measure the compressed gas pressure necessary to force gas through this outlet. The manometer comprised a stainless steel float in a tube that was connected through pulleys to a clockwork chart recorder. Chart advance speed was 2.5, 5, 10 or 20 mm/hour (10 mm/hour was generally used for tidal measurements) and pressure ranges corresponding to depth scales of 0-3m, 0-6m, 0-9m, 0-12m or 0-18m were available. More information may be found in http://www.bodc.ac.uk/data/documents/nodb/27190/
1
TOOL0610
accepted
Neyrpic bubbler