What is the use of acoustic coupler?
The role of the coupler is to convert audio signals that are traveling over the phone lines to the analog signals that your modem normally encounters when it is connected directly to a phone line.
What does the word coupler mean?
one that couples
Definition of coupler 1 : one that couples. 2 : a contrivance on a keyboard instrument by which keyboards or keys are connected to play together.
What is acoustic mode?
1. n. [Formation Evaluation] A situation in which acoustic energy that propagates in one direction is confined in the other two directions as, for example, a mode confined to an interface between two different materials or within the borehole.
What is a coupler used for in construction?
Mechanical couplers are widely used in the present construction industry to joint two reinforcement bars together.
How does a teletypewriter work?
The teleprinter consists of a typewriter-like keyboard and a printer, powered by an electric motor. The two devices are coupled to the motor by clutches that are brought into operation automatically when required. A message is sent by typing on the keyboard.
What are acoustic channels?
a combination of equipment and physical media for the transmission of signals by means of audio and ultrasonic phenomena.
What is acoustic branch?
[ə′küs·tik ‚branch] (solid-state physics) One of the parts of the dispersion relation, frequency as a function of wave number, for crystal lattice vibrations, representing vibration at low (acoustic) frequencies.
What is an optical and acoustic mode?
In the optical mode two adjacent different atoms move against each other, while in the acoustic mode they move together. The speed of propagation of an acoustic phonon, which is also the speed of sound in the lattice, is given by the slope of the acoustic dispersion relation, ∂ωk∂k (see group velocity.)