1. The web or arm of a crank. 2. The displacement of a crankpin from the crankshaft.

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.

PISTON ENGINE

A type of engine characterized by reciprocating motion of pistons in a cylinder. Also known as displacement engine; reciprocating engine.

NAVIER'S EQUATION

A vector partial differential equation for the displacement vector of an elastic solid in equilibrium and subjected to a body force.

MASTER ARM

A component of a remote manipulator whose motions are automatically duplicated by a slave arm, sometimes with changes of scale in displacement or force.

LONGITUDINAL VIBRATION

A continuing periodic change in the displacement of elements of a rod-shaped object in the direction of the long axis of the rod.

LOBED IMPELLER METER

A type of positive displacement meter in which a fluid stream is separated into discrete quantities by rotating, meshing impellers driven by interlocking gears.

LIQUID-SEALED METER

A type of positive displacement meter for gas flows consisting of a cylindrical chamber that is more than half filled with water and divided into four rotating compartments formed by trailing vanes; gas entering through the center shaft into one compartment after another forces rotation that allows the gas then to exhaust out the top as it is displaced by the water. Also known as drum meter.

KENNEDY AND PANCU CIRCLE

For a harmonic oscillator subject to hysteretic damping and subjected to a sinusoidally varying force, a plot of the in-phase and quadrature components of the displacement of the oscillator as the frequency of the applied vibration is varied.

JOYSTICK

A two-axis displacement control operated by a lever or ball, for XY positioning of a device or an electron beam.

INTEGRATING GYROSCOPE

A gyroscope that senses the rate of angular displacement and measures and transmits the time integral of this rate.

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