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barograph A recording barometer. A highly sensitive barograph may be called a microbarograph. Note, the fact that a barometer is a recording barometer (barograph) does not in itself imply that it is a more accurate instrument than a non-recording variety. Note any instrument with "graph" in the name implies a recording device...thermograph, polygraph, etc A barograph trace is shown in WXT G275. The mechanism that operates an aneroid barometer (the usual type used in barographs) is shown in WXT G101.

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