electromagnetic delay line

Thân thiện

An engineer tests an electromagnetic delay line in the laboratory.

Definition

1. Noun:
   • A type of delay line that operates based on the finite propagation time of electromagnetic waves: It is a component or system designed to introduce a controlled time delay into an electrical signal by exploiting the time it takes for an electromagnetic wave to travel through a physical medium or a specific circuit path.

Usage Examples

• Noun:
  • The radar system uses an electromagnetic delay line to accurately time the return signal.
  • In early computer memory, an electromagnetic delay line could store data bits as a circulating wave.

Advanced Usage

• Technical Context: The term is primarily used in specialized fields like electrical engineering, telecommunications, and radar technology. It describes a physical implementation (e.g., using a coil of cable or a waveguide) where the signal delay is a direct function of the length of the transmission path and the velocity of propagation of the electromagnetic wave in that medium.

Variants and Related Words

• Delay line (n): The general category of devices for introducing time delays into signals. An electromagnetic delay line is a specific type.
• Acoustic delay line (n): A different type of delay line that uses the propagation of sound waves, often used in contrast to electromagnetic types.

Synonyms

• Signal delay unit: A more general descriptive term.
• Transmission line delay: A phrase describing the delay effect inherent in any transmission line, which is the principle behind an electromagnetic delay line.

Related Phrases

• To introduce a delay: The functional purpose of the device.
  • The circuit was designed to introduce a precise 10-nanosecond delay.

Related Idioms

Học thuật

Noun

1. a delay line based on the time of propagation of electromagnetic waves