To detect a magnetic field in industrial or automotive applications, magnetic sensors are installed to get the job done. Without these, your car would be unable to communicate necessary data that you need to drive the car safely. Depending on the type used, you can measure positioning of objects, and therefore measure the speed at which they travel. How each sensor operates is determined by the type that it is.
Hall effect sensors can report distances to a magnetic field by measuring its output. They are used mostly in automotive applications. For instance, if you place two magnets inside a wheel with your hall effect sensor, it can measure the speed that the magnets travel as the wheel spins, by determining the distance of the magnets from the sensor at various points. This helps measure revolutions of your tires, and can interpret that into speed. There are various functions in your car that can benefit from this type of data. Of all magnetic sensors, this one is one of the more common.
Hall effect sensors can report distances to a magnetic field by measuring its output. They are used mostly in automotive applications. For instance, if you place two magnets inside a wheel with your hall effect sensor, it can measure the speed that the magnets travel as the wheel spins, by determining the distance of the magnets from the sensor at various points. This helps measure revolutions of your tires, and can interpret that into speed. There are various functions in your car that can benefit from this type of data. Of all magnetic sensors, this one is one of the more common.
Magnetoresistance can be detected by using a magnetoresistive sensor. By using this type, you can detect magnetic fields by observing the increase or decrease of electrical resistance. Electrical resistance stops the free flow of current. These sensors are quite sensitive, so they can be used to detect even weak magnetic fields, and they can withstand high temperatures and harsh conditions. These sensors can be utilized in navigation systems, such as compasses.
A third type, the variable reluctance sensor (or VR), measures the speed that metal parts move. They contain magnets, so when metal components are close by, the magnetic relationship is reported as
stronger. These have similar applications to hall effect sensors, but the VR type is generally less expensive due to extra components that it needs to function. VR sensors are also great for high temperatures, though, and they do not need an external source of power.
Magnets can communicate all kinds of information, including speed and distance relative to other objects. In order to accurately report this kind of data, magnetic sensors need to be chosen carefully to
fit the right application. Sensor Solutions has a selection tool on their website that will help you choose and design the right sensor to fit your needs.
stronger. These have similar applications to hall effect sensors, but the VR type is generally less expensive due to extra components that it needs to function. VR sensors are also great for high temperatures, though, and they do not need an external source of power.
Magnets can communicate all kinds of information, including speed and distance relative to other objects. In order to accurately report this kind of data, magnetic sensors need to be chosen carefully to
fit the right application. Sensor Solutions has a selection tool on their website that will help you choose and design the right sensor to fit your needs.