Reed Switch Sensor Working

The contacts are usually normally open closing when a magnetic field is present or they may be.

Reed switch sensor working.

Reed switches like this are called normally closed nc normally switched on so electricity flows through them most of the time. Advantages of using reed switched. 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. How reed switches work.

Reed switches feature incredibly high reliability for a mechanical switch and they re able to. Choose from our selection of reed switches including magnetically actuated switches magnetic contact alarm switches and more. The simplest magnetic field sensor is a reed switch. Fundamentally a reed switch is a magneto mechanical relay.

There are many advantages for using magnetically operated reed sensors including. When an axially aligned magnet approaches the switch its magnetic force closes the reeds. Alternatively you ll need supporting circuitry to enable hall sensors to do their job. Additionally reed switches can work with a variety of voltages loads and frequencies as the switch functions simply as a connected or disconnected wire.

You can also get reed switches that work the opposite way. In its simplest and most common form it consists of a pair of ferromagnetic flexible metal contacts in a hermetically sealed glass envelope. 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. No mechanical wear because there is no physical pressure applied to the switch there is no mechanical wear and tear.

The two contacts are normally snapped together and when you bring a magnet up to the switch spring apart. In stock and ready to ship. 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.