Definition

1. Noun:
   • A sensitive voltmeter that can measure voltage in millivolts: A "millivoltmeter" is a precise electrical instrument designed specifically to measure very small electrical potential differences, with readings typically displayed in units of one-thousandth of a volt (mV).

Usage Examples

• Noun:
  • The technician used a millivoltmeter to check the tiny signal from the sensor.
  • For accurate readings of thermocouple output, a calibrated millivoltmeter is essential.

Advanced Usage

• "Null-balance millivoltmeter": A type of millivoltmeter where the unknown voltage is balanced against a known internal voltage, resulting in a null or zero reading on the meter for maximum accuracy.
  • The laboratory experiment required a null-balance millivoltmeter to eliminate errors from lead resistance.

Variants and Related Words

• Voltmeter (n): A more general instrument for measuring electrical potential difference in volts.
  • A standard voltmeter cannot measure the minute voltages that a millivoltmeter can.
• Millivolt (n): A unit of electrical potential equal to one-thousandth of a volt.
  • The circuit produced a signal of only a few millivolts.

Synonyms

• Microvoltmeter (n): An even more sensitive instrument that measures voltage in microvolts (millionths of a volt). Note: This is not a direct synonym but a related, more sensitive type of instrument.
• Sensitive voltmeter (n phrase): A descriptive synonym highlighting the key characteristic of a millivoltmeter.

Related Phrases

• "To measure in millivolts": The action performed by this instrument.
  • This device is capable of measuring in millivolts with great precision.

Noun

1. sensitive voltmeter that can measure voltage in millivolts