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AN ON‐SITE HYDROLOGIC DATA RECORDING SYSTEM 1
Author(s) -
Chadwick Duane G.
Publication year - 1973
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1973.tb01740.x
Subject(s) - standby power , battery (electricity) , channel (broadcasting) , power (physics) , environmental science , electrical engineering , remote sensing , transmission (telecommunications) , real time computing , computer science , engineering , voltage , geology , physics , quantum mechanics
A system is described which has the capability to operate unattended for long periods of time, reliably sensing and digitizing data at predetermined intervals for data transmission or storage as the case requires. Little power is needed for system operation in the standby mode. Batteries supply what energy is required for operation, so it can be used in places located remotely from a 60 Hz power source. A description is given of methods used to sense and digitize data taken from a precipitation gage, temperature probe, wind direction, indicator, wind mile sensor, and water level sensor. The system is periodically actuated by an extremely accurate solid‐state crystal clock. The record is made on an 8‐channel battery operated paper‐tape punch.