A hydraulic actuator of rotary type. Has a cylindrical cartridge with several hydraulic cylinders which rods linear movement converted into shaft rotation. Direction of shaft rotation depends on sequence of working cylinders activation.


Related Terms

DEFLECTION

  1. The displacement of an electron beam from its straight-line path by an electrostatic or electromagnetic field.
  2. Shape change or reduction in the diameter of a conduit, produced without fracturing the material.
  3. Elastic movement or sinking of a loaded structural member, particularly of the mid-span of a beam.

POPPET VALVE

A cam-operated or spring-loaded reciprocating-engine mushroomtype valve used for control of admission and exhaust of working fluid; the direction of movement is at right angles to the plane of its seat.

PNEUMATIC CONTROLLER

A device for the mechanical movement of another device (such as a valve stem) whose action is controlled by variations in pneumatic pressure connected to the controller.

PENDULUM SCALE

Weight-measurement device in which the load is balanced by the movement of one or more pendulums from vertical (zero weight) to horizontal (maximum weight).

OPTICAL COMPARATOR

Any comparator in which movement of a measuring plunger tilts a small mirror which reflects light in an optical system. Also known as visual comparator.

OMNIMETER

A theodolite with a microscope that can be used to observe vertical angular movement of the telescope.

MULTISTATIC RADAR

Radar in which successive antenna lobes are sequentially engaged to provide a tracking capability without physical movement of the antenna.

MECHANICAL COMPARATOR

A contact comparator in which movement is amplified usually by a rack, pinion, and pointer or by a paralleloume of liquid and then release it.

MANIPULATIVE SKILL

The ability of a worker to handle an object with the appropriate control and speed of movement required by a task.

ION MIGRATION

Movement of ions produced in an electrolyte, semiconductor, and so on, by the application of an electric potential between electrodes.

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