nanovolt

Thân thiện

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

Definition

1. Noun:
   • A unit of electrical potential equal to one billionth of a volt: A "nanovolt" is a measurement of electrical potential difference (voltage) in the metric system. It is an extremely small unit, specifically one billionth (1/1,000,000,000) of a standard volt.

Usage

• The term "nanovolt" is used in scientific and technical contexts, particularly in electronics, physics, and engineering, to measure very small voltage signals.
• It is often abbreviated as nV.

Examples

• Noun:
  • The sensor can detect signals as low as a few nanovolts.
  • The noise level in the circuit was measured at 50 nanovolts.
  • A potential difference of one nanovolt is incredibly small.

Advanced Usage

• "Nanovolt-level sensitivity": Refers to the capability of an instrument to detect or measure voltages on the order of nanovolts.
  • This amplifier has nanovolt-level sensitivity, making it ideal for low-noise experiments.
• "Nanovoltmeter": A specialized voltmeter designed to measure voltages in the nanovolt range.
  • We need a high-precision nanovoltmeter to characterize this material's properties.

Variants and Related Words

• Volt (V): The base SI unit of electrical potential.
• Millivolt (mV): One thousandth of a volt.
• Microvolt (µV): One millionth of a volt.
• Picovolt (pV): One trillionth of a volt.

Synonyms

• Electrical potential unit: A broader term for any unit measuring voltage.
• Submultiple of a volt: A formal term for a fractional unit of the volt.

Notes

• The prefix "nano-" comes from the Greek word "nanos," meaning dwarf. In the International System of Units (SI), it denotes a factor of 10⁻⁹ (one billionth).
• Nanovolt measurements are critical in fields like nanotechnology, superconductivity, and low-temperature physics, where extremely faint electrical signals are common.

Học thuật

Noun

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