Magnetic Reed Switch Circuit Diagram

There are all sorts of creative applications for reed switches.

Magnetic reed switch circuit diagram. Normally closed reed switch by anthony j. How to build a reed switch circuit. In its simplest and most common form it consists of a pair of ferromagnetic flexible metal contacts in a hermetically sealed glass envelope. The reed switch is an electrical switch operated by an applied magnetic field it was invented at bell telephone laboratories in 1936 by walter b.

Wilkis october 17 1967. Describes various ways of making a normally closed switch. A switch with one magnetic reed and one non magnetic one. A magnetic door switch for example is just a dressed up reed switch and a mating magnet by keeping both parts of the switch separate the door can open and close freely and maintain its regular duties as a door the anemometer in our weather meter combines a.

When a magnet is reached in proximity of s1 it closes to give a negative. There are 2 basic types of reed switches. The contacts are usually normally open closing when a magnetic field is present or they may be. Here is the circuit diagram of a magnetic proximity switch that finds a lot of applications in many fields the circuit is based on a magnetic reed switch s1 as the proximity sensor a monostable multivibrator based on ne555 ic1 and a toggle flip flop based on cd4013 ic2 does the rest of the circuit.

There are normally open reed switches and normally closed reed switches. Quite a neat summary of how reed switches are used in. A reed switch is a very basic 2 lead switch that is switched on by a magnet being brought into the vicinity of the switch. Simply put it is a magnetic switch.