Coupler

Look up coupler in Wiktionary, the free dictionary.

Coupler may refer to:

Engineering

Mechanical

Railway coupler, a mechanism for connecting rolling stock on a train
- Janney coupler
- SA3 coupler
- Scharfenberg coupler for multiple unit passenger cars
Quick coupler, used in construction machines to allow the rapid change of buckets
Coupling, a device used to connect two shafts together at their ends for the purpose of transmitting power
- Universal coupling, a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction

Electronics

Acoustic coupler, for coupling electrical signals by acoustical means
Directional coupler, a passive device used in radio technology
Antenna coupler, a device connected between a radio transmitter or receiver and its antenna
Output coupler, a partially reflective mirror used in lasers
Optocoupler, an electronic component that transfers electrical signals between two isolated circuits by using light

Other uses

Coupler (piping), also called a (joist) short length of pipe with two female threads
Coupler, a device used on a pipe organ
Coupler, a device used on a harpsichord
Coupler, a tap valve, for controlling the release of beer out of a keg
Coupler, the floating link in a four-bar linkage
Hydrant coupler, for aircraft fueling equipment

See also

This disambiguation page lists articles associated with the title Coupler.
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