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auto-zeroing
auto-zeroing n. and adj. 
/ˌɑdoʊˈzɪroʊɪŋ/ Electronics (a) n. the automatic adjustment of an instrument to give a zero reading or zero input; (b) adj. (of a device) that has this facility.
Brit. /ˌɔːtə(ʊ)ˈzɪərəʊɪŋ/
, /ˌɔːtə(ʊ)ˈzɪərəʊɪŋ/U.S. /ˌɔdoʊˈzɪroʊɪŋ/
, /ˌɔdoʊˈzɪroʊɪŋ//ˌɑdoʊˈzɪroʊɪŋ/ΚΠ
1967 Control Engin. Aug. 112 Unlike other systems that employ a potentiometric recorder for bridge auto zeroing, the 100T features a solid state auto zero circuit.
1967 Automation in Analyt. Chem.: Technicon Symp. 1966 II. 211/2 Work simplification devices such as automatic dilutors, automatic, auto-zeroing pipettes, and flow-through colorimeters.
1987 Nature 3 Sept. 89/2 An autozeroing device readies the instrument after the reference cuvette is placed in one slot of the two-position cuvette holder.
2008 H. Zumbahlen Linear Circuit Design Handbk. iii. 227 Both amplifiers implement auto-zeroing to minimize offset and drift.
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