In any electric machine, there are several parts that must work together in order to create the action you’re trying to achieve. There need to be switches to start and stop the process and a source of power, whether it’s electric or battery-operated. In between the time when you push the start and begin function till you hit stop and suspend motion, there are several different parts that move together to make the machine work. The type of system will determine which pieces you’re working with, but some of the most common parts are Hall-effect sensors.
A Hall-effect sensor works in response to the magnetic field in the machine. It’s ability as a transducer makes it perfect for use in several different types of machines, especially since it can be used in simple, analog form to directly return voltage. Speed detection devices used by police officers are a common way these sensors are used. They are also often used for positioning, proximity switching and sensing applications.
There are also more complex uses for Hall-effect sensors, especially when combined with circuitry. This allows the sensor to change from analog to digital mode and function as a switch. Many things that you use every day contain this type of sensor. Some computer printers use these sensors to detect malfunctions, such as open covers and missing paper. Keyboards can also use this type of sensor, as well as vehicles, where they’re used in ignition timing, anti-lock braking systems and tachometers. Hall sensors are also useful in engine fans in a variety of machines and vehicles.
There are many reasons why engineers choose to use the Hall sensors over other types. A few reasons include the high operation level of 100 kHz, the lower cost over mechanical switches, the ability to be flat and the fact that the cover can measure magnetic fields of a higher range. The sensor is in a sealed package and remains unaffected by environmental contaminants and contact bouncing. These are just a few of the many reasons that make Hall-effect sensors one of the most usable and versatile parts in a machine.
A Hall-effect sensor works in response to the magnetic field in the machine. It’s ability as a transducer makes it perfect for use in several different types of machines, especially since it can be used in simple, analog form to directly return voltage. Speed detection devices used by police officers are a common way these sensors are used. They are also often used for positioning, proximity switching and sensing applications.
There are also more complex uses for Hall-effect sensors, especially when combined with circuitry. This allows the sensor to change from analog to digital mode and function as a switch. Many things that you use every day contain this type of sensor. Some computer printers use these sensors to detect malfunctions, such as open covers and missing paper. Keyboards can also use this type of sensor, as well as vehicles, where they’re used in ignition timing, anti-lock braking systems and tachometers. Hall sensors are also useful in engine fans in a variety of machines and vehicles.
There are many reasons why engineers choose to use the Hall sensors over other types. A few reasons include the high operation level of 100 kHz, the lower cost over mechanical switches, the ability to be flat and the fact that the cover can measure magnetic fields of a higher range. The sensor is in a sealed package and remains unaffected by environmental contaminants and contact bouncing. These are just a few of the many reasons that make Hall-effect sensors one of the most usable and versatile parts in a machine.