reed switch


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reed switch

[′rēd ‚swich]
(electromagnetism)
A switch that has contacts mounted on ferromagnetic reeds sealed in a glass tube, designed for actuation by an external magnetic field. Also known as magnetic reed switch.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
has introduced what is said to be the world's smallest magnetically operated reed switch. The HSR-0025 was designed to address the need for smaller electronic components in the medical and healthcare industries, specifically in hearing aids, pacemakers and other implantable devices, defibrillators, surgical instruments and test/dianostic equipment.
The activation of the switch uses the principle of a reed switch and magnet.
A magnet-equipped shuttle is displaced at the calibrated setpoint to actuate the hermetically sealed reed switch housed within the removable bonnet assembly.
CT05 miniature molded reed switch sensors from Coto Technology, are molded in thermoset plastic to provide protection in automated pick-and-place applications.
As previously mentioned, a reed relay is a switching device, but it uses a reed switch and coil to activate it.
Hasco Components is offering its ORD-92 reed switch as its most basic reed with long life.
The reed sensors feature an encapsulated thermoset housing that protects the internal hermetically sealed reed switch. The sensors measure 11.6 mm x 2.7 mm X 2.3 mm and come in two pad layouts.
They also have frictionless bearings and reed switch option for better installation.