Null Indicator

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null indicator [′nəl ‚in·də‚kād·ər]

(engineering)

A galvanometer or other device that indicates when voltage or current is zero; used chiefly to determine when a bridge circuit is in balance. Also known as null detector.

Null Indicator

a sensitive instrument for detecting the inequality of physical quantities being compared in the null method. A null indicator may be a galvanometer, electrometer, telephone, or cathode-ray tube. If necessary, the sensitivity of a null indicator can be improved by means of photoelectric, electronic, and other types of amplifiers. Automatic adjustment of the sensitivity of null indicators is widespread; it makes possible the use of maximum sensitivity near zero and sharply reduced sensitivity far from zero. In automatic balancing, a null indicator controls a balancing system.

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No references found			NUI nuisance nuisance parameter Nuits de Fourvière Nujoma, Sam Nukša Burial Ground nuke Nuker Nukha Nukhai Batyrmurzaev Nuksa Burial Ground Nuku Hiva Nuku'alofa Nukualofa Nukula Nukus null null allele null cell null character null cone null detection null detector null geodesic null hypothesis Null Indicator null matrix Null Method null modem null modem cable null pointer null reference system null sequence null set null space null string null surface null value null vector null-balance recorder null-current circuit null-current measurement null-terminated multibyte string Nullarbor Nullarbor Plain nullary nullary composition nullification Nullification of Elections nulling nulling interferometry			null c's null cell null cell null cell null cell null cells null cells null cells null cells null character null character null characters null characters Null Command Generator Null cone Null Convention Logic Null copula null detection null detector Null geodesic null hypotheses null hypotheses null hypotheses Null hypothesis Null hypothesis Null hypothesis Null hypothesis Null hypothesis Null Hypothesis Significance Testing Null Hypothesis Significance Testing Procedure Null Indicator null instrument null lymphocyte null lymphocyte null lymphocyte null lymphocyte Null matrix Null method Null method Null modem Null Modem Adapter Null modem cable Null modem cable Null morpheme Null mutant Null mutation Null mutation Null mutation Null mutation Null Orbiting Horizon Sensor Null oscillations Null oscillations Null Packet Deletion Null picture null point null point null point null pointer null pointer Null Reference Null Reference Exception

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