Noun: positioner pu'zi-shu-nu(r)
- (computing) the actuator that moves a read/write head to the proper data track
"The hard drive's positioner positioned the read/write head with precision";
- rotary actuator
- A device used to control the opening or closing of the actuator based on electric, or pneumatic signals
"The automated valve system relied on a precise positioner for accurate control"
Derived forms: positioners
Encyclopedia: Positioner