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An Aquarium Tide timer‐‐Theory and Operation
Author(s) -
De Santo Robert S.
Publication year - 1967
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1936515
Subject(s) - timer , reliability (semiconductor) , environmental science , control (management) , computer science , ecology , biology , physics , computer hardware , microcontroller , power (physics) , quantum mechanics , artificial intelligence
The theory, design, and construction of a timing circuit based on three commercially available 24—hr time switches is described. The circuit may be used to control a pumping system to simulate tidal cycles; periodicities up to 47 hr may be programed. The specific use of this device in the cyclical operation of a tide pump for 6 hr 12 min, in a cycle of 12 hr 24 min, is described and its reliability is outlined.