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One that activates, especially a device responsible for actuating a mechanical device, such as one connected to a computer by a sensor link.


(ˈæk tʃuˌeɪ tər)

1. a person or thing that actuates.
2. a servomechanism that supplies and transmits a measured amount of energy for the operation of another mechanism or system.


A mechanism that furnishes the force required to displace a control surface or other control element.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actuator - a mechanism that puts something into automatic action
mechanism - device consisting of a piece of machinery; has moving parts that perform some function
positioner, rotary actuator - (computer science) the actuator that moves a read/write head to the proper data track
References in periodicals archive ?
Complete report on Actuator market divided into 13 major chapters that offer an overview of current market scenario as well as Actuator forecasts is now available at http://www.
We have developed this plug-and-play solution saving the customers the trouble of having the actuator fitted with a strain gauge elsewhere.
The P700 series actuators assure efficient performance of both the actuator and the Fisher C series internal valve to deliver full valve capacity.
The window provides positional and warning icon information, whilst actuator setup and operating menus along with detailed diagnostic and operational data screens are clearly displayed in dot matrix format.
Configuration of actuator includes two parts: piezoceramic beam and single steel mass that is glued at one of the ends of beam (Fig.
Thus, the recovering force per unit weight of an SMA actuator is higher than that of the conventional robot actuators, while the design of an SMA actuator can be very flexible.
ServoGate has a space-saving integrated motor/actuator design rather than separate motor and actuator components.
Until now, function testing of actuated valves while a process was live has been extremely difficult, usually involving the simultaneous operation of both the actuator and valve.
Dual actuator per disk assembly designs are now being explored as a potential solution to the current imbalance between the slower progress of disk performance and the 60% or better annual increases in capacity.
Ultimately, their goal is to make an actuator for microscopic machines out of a single nanotube (SN: 7/26/97, p.
com/research/73rrwc/automotive) has announced the addition of the "Automotive Actuators Market by Product Type (Throttle, Power Seat, EGR, Brake, VGT, Wastegate, Grille Shutter, Intake Flap, Electrical Exhaust/Sound Flap & Thermo Module/Thermal Actuators) by Vehicle Type, by Geography - Forecast & Analysis to 2020 " report to their offering.