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2. List of electrical and electronic measuring equipment

   en.wikipedia.org/wiki/List_of_electrical_and...

   Creates constant-amplitude variable frequency sine waves to test frequency response Transistor tester: Tests transistors Tube tester: Tests vacuum tubes (triode, tetrode etc.) Wattmeter: Measures power in a circuit Vectorscope: Displays the phase of the colors in color TV Video signal generator: Generates video signal for testing purposes Voltmeter

3. Wattmeter - Wikipedia

   en.wikipedia.org/wiki/Wattmeter

   The current coils are connected in series with the circuit, while the potential coil is connected in parallel. Also, on analog wattmeters, the potential coil carries a needle that moves over a scale to indicate the measurement. A current flowing through the current coil generates an electromagnetic field around the coil. The strength of this ...

4. Growler (electrical device) - Wikipedia

   en.wikipedia.org/wiki/Growler_(electrical_device)

   A growler is an electrical device primarily used for testing a motor for shorted coils. A growler consists of a coil of wire wrapped around an iron core and connected to a source of alternating current. When placed on the armature or stator core of a motor the growler acts as the primary of a transformer and the armature coils act as the ...

5. Grounding resistance tester - Wikipedia

   en.wikipedia.org/wiki/Grounding_resistance_tester

   The analog grounding resistance tester is realized by four main blocks DC generator, rectifier, current and potential coil.The deflection of the pointer of the analog screen depends on the ratio of the voltage of pressure coil to the current of the current coil.

6. Multimeter - Wikipedia

   en.wikipedia.org/wiki/Multimeter

   For example, a multimeter using a moving coil movement with full-scale deflection current of 50 microamps (μA), the highest sensitivity commonly available, must draw at least 50 μA from the circuit under test for the meter to reach the top end of its scale. This may load a high-impedance circuit so much as to affect the circuit, thereby ...

7. Rogowski coil - Wikipedia

   en.wikipedia.org/wiki/Rogowski_coil

   A Rogowski coil is a toroid of wire used to measure an alternating current I(t) through a cable encircled by the toroid. The picture shows a Rogowski coil encircling a current-carrying cable. The output of the coil, v(t), is connected to a lossy integrator circuit to obtain a voltage V out (t) that is proportional to I(t).

8. Electricity meter - Wikipedia

   en.wikipedia.org/wiki/Electricity_meter

   North American domestic analog (Ferraris disk) electricity meter. Electricity meter with transparent plastic case (Israel) An electricity meter, electric meter, electrical meter, energy meter, or kilowatt-hour meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device over a time interval.

9. Kill A Watt - Wikipedia

   en.wikipedia.org/wiki/Kill_A_Watt

   Kill A Watt EZ electricity usage monitor review Archived 2009-05-11 at the Wayback Machine; Conner, Steve (2005-08-30). "Kill-A-Watt vs. analog wattmeter". Tesla Coil (Mailing list) The low power factor means that the DRSSTC was drawing awful peak currents, but the two meters still agreed well.