1. A reference to a mechanical device, system, or process that is actuated or controlled by electromagnetic or electrostatic phenomena.
2. Pertaining to a mechanical device, system, or process which is electrostatically or electromagnetically actuated or controlled.
3. Designating or of a mechanical device that is operated wholly or in part mechanically, but powered or controlled by electricity.
4. The use of electricity to run moving parts; for example, disk drives, printers and motors are examples of electromechanical devices.

Electromechanical systems must be designed for the eventual deterioration of moving components that wear over time.

A bell with a prewound spring-driven clapper which is tripped electrically to ring the bell.

A brake whose force is obtained partly as a result of the attraction of two magnetized surfaces and partly by mechanical processes.

A mechanical runaway that occurs when the mechanical restoring force fails to balance the electrical compressive force.

A switch that is used to produce modified square waves having the same frequency as, and a definite phase relationship to, a driving sine wave or a waveform with deviation that can be graphically expressed as the sine curve or a form or shape of a wave (a ripple or undulation).

All electromagnetic radiation, including radio signals, light rays, x-rays, and cosmic rays, as well as sound, behave like rippling waves in the ocean.

A commutator (an unidirectional current from a generator or a reversal of current into the coils of a motor) which in its simplest form has motor-driven rotating brushes to connect a number of data points in sequence to a common output line.

A mechanical instrument which is operated by electricity.

1. A device on a telephone that activates a group of precoded numbers when a user presses a designated button.
2. A telephone dialer that activates one of a set of desired numbers, coded into it in advance, when the user selects and presses a start button.

Energy which is present in an induction coil or solenoid.

A meter that uses the resonant properties of mechanical devices to indicate frequency.

1. Specifically, an output device that produces graphic or pictorial representations of computer data on a hard copy by drawing with one or more automatically controlled pens that move in small steps as used with digital computers.
2. An automatic device used in conjunction with a digital computer to produce a graphic or pictorial representation of computer data on a hard copy.
3. A graphics printer that draws images with ink pens.

It draws point-to-point lines directly from vector graphics files.

The plotter was the first computer output device that could print graphics as well as accommodate full-size engineering and architectural drawings.

A device that transforms electrical signals into equivalent mechanical motion which is transferred to a medium by cutting, embossing, or writing.

1. A document created by varying the signal of electric current flowing through a stylus moving across a sheet of paper.
2. Recording by means of a signal-actuated mechanical device; such as, a pen arm or mirror attached to the moving coil of a galvanometer.
3. A tool that transforms electrical signals into equivalent mechanical motion which is transferred to a medium by cutting, embossing, or writing.

1. A device consisting of a coil and an armature that moves under the influence of a magnetic field produced by the coil to close or to open a contacting switch.
2. A protective relay operating on the principle of electromagnetic attraction; such as, a plunger relay or of electromagnetic induction.

Usually refers to a motor-driven timer, with or without an electrically operated clutch.

It can also apply to pneumatic and thermal timers, or to slow pull-in or drop-out relays.

1. An instrument that converts mechanical energy into electrical energy or a reverse process.
2. A transducer (electrical device that converts one form of energy into another) for receiving waves from an electric system and delivering waves to a mechanical system, or the reverse.

A variation of electromagnetic transduction.

In electromagnetic devices, it is often difficult to control the spatial relationship of the magnet and coil.

Because the magnet is attached to one portion of the anatomy and the coil attached to another part, the patient may observe a wide variation in performance.

As the relationship between the coil and the magnet changes, it results in a variance of the frequency response and a significant fluctuation of output levels.

An electromechanical device has an energizing coil and a magnet that are housed within an assembly which optimizes spatial and geometric relationships in order to avoid variability.

The electromechanical transducer directly connects to the ossicular chain (any of certain small bones, as those of the middle ear) to transmit the mechanical energy that is produced.

Continued electrical rhythmicity of the heart in the absence of effective mechanical function.

It might be caused by the uncoupling of ventricular muscle contraction from electrical activity or it might be a result of cardiac damage with respiratory failure and cessation of cardiac venous return.