Reed Switch Sensor Working

Alternatively you ll need supporting circuitry to enable hall sensors to do their job.

Reed switch sensor working.

To be more precise a reed switch working is initiated when a magnetic force is brought near it which results in the required mechanical switching action. A reed sensor is a device built using a reed switch that incorporates additional functionality for example the ability to withstand higher shock or vibration molded packages with in built magnets for form b or e type operation easier mounting for automatic pick and place before smd reflow additional intelligent circuitry etc. Choose from our selection of reed switches including magnetically actuated switches magnetic contact alarm switches and more. When an axially aligned magnet approaches the switch its magnetic force closes the reeds.

The easiest way of making one is to take a. Reed switches like this are called normally closed nc normally switched on so electricity flows through them most of the time. The two contacts are normally snapped together and when you bring a magnet up to the switch spring apart. No mechanical wear because there is no physical pressure applied to the switch there is no mechanical wear and tear.

Fundamentally a reed switch is a magneto mechanical relay. It contains two ferromagnetic nickel and iron reed elements in an evacuated hermetically sealed glass tube to minimize contact arcing. 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. Advantages of using reed switched.

How reed switches work. Operated through a non magnetic material sensors can be developed with such sensitivity that they can be embedded deep within an assembly out of sight. There are many advantages for using magnetically operated reed sensors including. Reed switches feature incredibly high reliability for a mechanical switch and they re able to.

Additionally reed switches can work with a variety of voltages loads and frequencies as the switch functions simply as a connected or disconnected wire. The simplest magnetic field sensor is a reed switch. The contacts are usually normally open closing when a magnetic field is present or they may be.