wattmeter
/ˈwɒtmiːtə
/noun
A meter for measuring electric power in watts.If the load impedance is not equal to the transmission line impedance, the wattmeter will indicate the amount of reflected power....
- The electric power applied to the transducer was measured using a sampling wattmeter.
- The potential coil of the wattmeter generally has a high-resistance resistor connected in series with it.