Phase compensator
A phase compensator can refer to an engineering tool or a component on Federation starships such as the . They were also used by the Klingon Empire.

A phase compensator was one component of the plasma manifold aboard a Klingon Bird-of-Prey. () 

During the 's maintenance overhaul in 2377,  B'Elanna Torres ordered that a new phase compensator be installed on a relay. ()

Later that year, when Voyager was trapped in , Captain Kathryn Janeway gave Seven of Nine's favorite phase compensator to the Nygeans, so that they could repair their sensor array. ()

de:Phasenkompensator
Spacecraft components
Engineering tools