Every hydraulic or pneumatic cylinder or actuator requires a reed sensor for end position sensing. Unlike inductive sensors or Hall-effect sensors, reed sensors use no power and have a good isolation. They have high operating speeds, work with a wide range of voltages of programmable logic controllers (PLCs) and micro-controllers. When used with weak magnets, reed sensors can also detect any ferrous parts. The following applications use reed sensors. We have also suggested few of our products for use in each application, but this does not mean that the other products in the same product category will be unsuitable. Click here to download this page as a PDF.
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The time during which current is being used for welding and the time during which no current is being used can be sensed using special Magnet Sensors strategically located to sense current in the high-current cables. Continue reading |
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The power industry uses many types of relays for signal switching as well as high voltage and high current switching. Special reed switches with high breakdown voltage, capable of switching high wattages are used to manufacture… Continue reading |
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Petrol and diesel pumps use reed switches to sense if the nozzle has been placed in the holster properly so that the last volume filled display can be reset to zero. A tiny magnet on the nozzle handle can activate… Continue reading |
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Tap changers in transformers involve protection and control schemes and one of them is to sense if the tap changer assembly is in odd or even position. A magnet or a set of magnets mounted on the moving assembly arms trigger… Continue reading |
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A bridge control operator needs to steer the bridge toward to airplane door for docking. Reed sensors and magnets in the bridge mechanism help steer the bridge. Continue reading |
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Miniature ferrous part detection sensors can be positioned near gears to sense the speed of rotation. Reed Switch based sensors have very high sensing speeds and can sense up to 30,000 RPM. Continue reading |
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Ferrous part detection sensors are built by positioning two weak magnets near the seals of reed switches. The two magnets are by themselves not strong enough to transfer the magnetic flux lines between them… Continue reading |
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Most pneumatic cylinders, pistons, linear slides and rotary actuators are manufactured with inbuilt magnets for end position sensing. Reed Sensors are used to sense end positions and intermediary positions and the signals can be… Continue reading |
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Optic sensor lenses need to be exceptionally clean for vane sensing applications. A reed switch and a magnet are combined into one package with a specific distance between them to form a normally closed (NC) vane sensor… Continue reading |
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Hoists and fork lifts use hydraulics to move cylinders and pistons to life heavy weights. Reed Sensors can be used on these pistons and cylinders to sense end positions and intermediary positions… Continue reading |
