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ammeter

ammeter

6.5
A tool that measures how much electric current flows in a circuit
  • noun
  • /ˈæməˌtɜr/
  • Specialized
translation icon : amperímetro
  • The 17.8 cm split sphere, located about 4 m above the snow, contains a differential ammeter for measuring the difference in current flowing to the two hemispheres.

Examples

  • Imagine that conductive electrodes are then attached to the surfaces and connected through an ammeter having a low internal resistance.

    Academic text (2005)
  • If you see this ammeter rise over 20 at any point, power-up is no good.

  • A small display in the battery ammeter shows the driver the level of battery charge when the car is in its electric-drive mode.

    Academic text (1995)
  • So this round unit here could be either a voltmeter or an ammeter to measure respectively, voltage or current in a system like this.

  • The voltmeter, ammeter and switchboard controlling the current should be located in the execution room for monitoring.

  • The CT Series of AC current transformers are designed for use with ammeters, wattmeters, instrumentation, relays, and energy management systems.

    Academic text (1994)
  • Large-faced ammeters and voltmeters gleamed from hammered aluminum panels.

    Fiction book (1995)
  • The technician used an ammeter to check the electric current flowing through the circuit.

  • When measuring the current, it's essential to connect the ammeter in series with the load.

  • The ammeter indicated a reading of 10 amperes during the test of the new generator.

Synonyms

multimeter
vsammeter
  • Specialized
1 3.9

An electronic tool that measures voltage, current and resistance in wires and circuits

measures only current strength, not other electrical quantities
milliammeter
vsammeter
  • Specialized
7.6

An instrument that measures very small electric currents

measures current on a larger amperes scale rather than milliamperes
galvanometer
vsammeter
  • Specialized
9.9

A device that measures very small electric currents

measures current magnitude rather than only detecting tiny currents

How Strong

ammeter
  • Specialized
6.5
milliammeter
  • Specialized
7.6
galvanometer
  • Specialized
9.9

Surface Forms

ammeter singular
ammeters plural

Morphology

ammeter = ampere + meter (semi-transparent) = ampere + meter

The meaning is clearly 'a meter for amperes', but the form is partly clipped and fused, so the structure is not fully obvious from spelling alone.

Etymology

Ammeter comes from ampere, the unit for electric current, and -meter, which means 'measure', like in speedometer. So an ammeter is a device that 'measures' how strong an electric current is.