drift
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https://doi.org/10.1351/goldbook.D01859
A slow non-random change in signal with time.
See also:
noise
Source:
PAC, 1989,
61
, 1657. 'Nomenclature for automated and mechanised analysis (Recommendations 1989)' on page 1663 (https://doi.org/10.1351/pac198961091657)