wattmeter

/'wɔt,mi:tə/

Thân thiện

An electrician uses a wattmeter to check the power consumption of a small appliance.

Definition

1. Noun:
   • An instrument for measuring power in watts: A wattmeter is a device used to measure the rate of electrical energy transfer (power) in an electrical circuit, with the result displayed in watts.

Usage Examples

• Noun:
  • The engineer used a wattmeter to check the power consumption of the new motor.
  • Accurate power measurement requires a properly calibrated wattmeter.

Advanced Usage

• "Digital wattmeter": A modern wattmeter that uses digital technology to display the power reading.

  • The digital wattmeter provided a more precise reading than the old analog model.

• "To connect a wattmeter": Refers to the action of wiring the instrument into a circuit for measurement.

  • Remember to connect the wattmeter in series with the load and in parallel with the voltage source.

Variants and Related Words

• Watt-hour meter (n): An instrument that measures electrical energy in watt-hours, often used by utility companies for billing.

  • The watt-hour meter on the side of the house tracks total electricity usage.

• Power meter (n): A more general term for an instrument that measures power, which can include a wattmeter.

  • The cyclist used a power meter on his bike to monitor his output.

Synonyms

• Power meter: An instrument for measuring power.
• Electrical power measuring instrument: A formal description of the device's function.

Related Phrases

• "To take a wattmeter reading": The act of observing and recording the measurement from the wattmeter.

  • Please take a wattmeter reading every hour and log the data.

• "Wattmeter accuracy": Refers to how close the wattmeter's measurement is to the true value.

  • The experiment's validity depends on the wattmeter's accuracy.

Học thuật

Noun

1. an instrument for measuring in watts the flow of power in an electrical circuit