دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an instrument for measuring electric current in amperes.

n: a permanent magnet meter for detecting weak electric current. It can be adapted with shunts or resistors to measure larger currents or voltage.

a sensitive ammeter

n: a quantity indicator that measures current by the heating effect of the current on a thermocouple.

n: an electrical measuring instrument that verifies the presence or absence of current or emf in a circuit. A compass needle and a dashboard ammeter are verification indicators.