microvolt

/'maikrəvoult/

Thân thiện

A scientist measures a tiny signal of a few microvolts on the oscilloscope.

Definition

1. Noun:
   • A unit of electrical potential: A "microvolt" is a unit of electrical potential difference (voltage) equal to one millionth (10⁻⁶) of a volt. It is used to measure very small voltage levels.

Usage

• The term "microvolt" is a standard scientific and engineering unit of measurement. It is used in contexts involving extremely low-level electrical signals, such as in biomedical instrumentation (e.g., measuring brain waves or nerve signals), sensitive electronics, and telecommunications.

Examples

• Noun:
  • The electroencephalogram (EEG) measures brain activity in the range of a few microvolts.
  • This amplifier can detect signals as small as one microvolt.
  • The noise level in the circuit was only 5 microvolts.

Advanced Usage

• "Microvolt per meter (µV/m)": A common unit for measuring the strength of an electric field, particularly in radio frequency (RF) engineering.
  • The radio station's signal strength was measured at 50 microvolts per meter at that location.

Variants and Related Words

• Volt (V): The base SI unit of electrical potential.
• Millivolt (mV): A unit equal to one thousandth (10⁻³) of a volt.
• Nanovolt (nV): A unit equal to one billionth (10⁻⁹) of a volt.
• Microvoltage (n): A voltage measured in microvolts (less common, but used adjectivally).

Synonyms

• µV: The standard symbol for microvolt.
• 10⁻⁶ volt: Scientific notation equivalent.

Related Phrases and Abbreviations

• µV RMS: Microvolts root mean square, specifying the measurement of an alternating current (AC) signal's effective voltage.
  • The output of the sensor is 100 µV RMS.
• DC microvolts: Refers to a direct current (DC) voltage measured in microvolts.
  • The thermocouple generates a few DC microvolts per degree of temperature change.

Học thuật

Noun

1. a unit of potential equal to one millionth of a volt