Vibrator (technology)

from Wikipedia, the free encyclopedia

A vibrator is a technical device that is set into mechanical vibrations of mostly high frequency and relatively small amplitude ( vibration ) by supplying energy .

The areas of application for vibrators are broad. In the industrial environment, a vibrator is also known as a shaker or shaker .

species

Linear vibration vibrators

These piston vibrators are used as conveyor systems in industry . Most common as trough, tube or spiral conveyors.

Radial vibration vibrators

Radial vibrators generate a sinusoidal wave and are mainly used to compact materials such as concrete and soil and to drive sieves .

Dental technology

In dental technology , vibrators are used with which plaster of paris or investment materials can be processed without bubbles. The vibration drives any trapped air bubbles upwards.

Common types

  • Unbalance motors , mostly low-maintenance three-phase asynchronous motors with unbalance disks attached to the motor shaft.
  • Turbine vibrators in which a compressed air driven turbine rotates with an integrated imbalance.
  • Ball vibrators in which a steel ball accelerated by compressed air revolves around a circular path.
  • Roller vibrators, in which a steel roller accelerated by compressed air revolves on a circular path.

application areas

Construction engineering

Electrical engineering

Signal indicator

On the human body

Vibrations have a relaxing effect on the muscles . Electric vibrators are therefore used in massage devices or for sexual stimulation (" vibrators ").

Applied geophysics (seismics)

Seismic vibrators are vehicles that generate seismic waves for seismic measurements ( seismics ) on land. The method is called vibroseis . First, a steel plate (vibrating plate) is pressed onto the ground so that the vehicle is lifted slightly and presses against the steel plate with its own weight. The steel plate is then lifted in an oscillatory manner via hydraulic pressure and pressed downwards, with pressure waves being sent into the ground. For typical seismic measurements, e.g. B. in oil exploration , the vibrators vibrate so-called sweeps, which are several seconds long and generate frequencies of less than 10 to over 100 Hertz.

Individual evidence

  1. https://www.bergermb.de/produkt/turbine-vibrator/