Hall Effect Speed Sensors
Hall Effect (HE) speed sensors are sometimes referred to as switches, as they switch on and off when the tooth of a gear passes across the sensor. Hall Effect Speed Sensors typically consist of three wires which are power, ground, and signal. HE sensors usually have one to two Hall Effect chips that are positioned on a magnet within the sensor and are in proximity to the ferrous target wheel. When the target wheel turns, the magnetic flux increases and creates Hall voltage, which in turn produces a square digital signal wave. The advantages of a Hall effect speed sensor are that they can still detect the target at a larger air gap and continue to produce a signal at zero speed, whereas a VR sensor cannot.
Hall Effect (HE) speed sensors are crucial components with diverse applications in engineering and technology. They function as highly sensitive switches, activating when a gear’s tooth passes by. These sensors consist of three primary wires: power, ground, and signal.
Within the sensor assembly, one to two Hall Effect chips are strategically positioned close to a magnet. These chips act as precise detectors, continuously monitoring the surrounding magnetic field. When a ferrous target wheel starts to rotate, it induces changes in the magnetic flux, leading to the generation of Hall voltage. This Hall voltage is then converted into a square digital signal wave, effectively encoding the occurrence of motion.
Hall Effect speed sensors boast remarkable capabilities, including exceptional air gap tolerance, allowing them to detect targets even when a considerable distance separates the sensor from the observed object. In contrast to Variable-Reluctance (VR) sensors, Hall Effect sensors continue to function flawlessly at low speeds and even when motion ceases entirely.
These sensors are unsung heroes in various engineering sectors, playing a pivotal role in monitoring and controlling motion and speed in numerous systems and industries. Their consistent and accurate data capture makes them indispensable tools for engineers, contributing to the design and maintenance of highly efficient, secure, and dependable systems.
Whether in manufacturing, aerospace, automotive technology, or other precision-critical fields, Hall Effect speed sensors are the silent guardians that ensure seamless operations. Their versatility and reliability make them essential for optimizing system performance, a fact recognized by engineers worldwide.
- True zero speed sensing
- Digital output
- No moving parts or contacts
- Supply Voltage from 4.5 – 24Vdc
- Operating Temp -40°C to + 125°C
- Wide variety of styles and sizes
- Rugged design
- Configurable for most environments
- Customized versions available
- Adapts to various configurations
|.250″ to .500″ dia
|1/4-28 to 3/4-16
|M12X1.25 TO M22X1.5
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The functions and applications of MSC’s sensors are diverse, ranging from automotive and aircraft industries to electronic weighing.
MSC offers a range of speed and position sensors for various industries and applications.
|Active Digital Output
|Hall Effect Zero Speed Sensor
|Hall Effect Speed and Direction Sensor
|Hall Effect Quadrature Sensor
|Active Linear Output
|Hall Effect Speed Sensor With Linear 4-20 mA Output
|Hall Effect Speed Sensor With Linear DC Voltage Output
|HALL EFFECT POSITION SENSORS
|Active Digital Output
|Hall Effect Proximity Switch Sensor
|Active Linear Output
|Hall Effect Displacement Sensor
|Anti-Lock Brakes, Vehicle Speed Sensor, Cruise Control (after market), Diesel Engines, Dynamometers, EFI (retro-fit), Electronic Speedometer, Electromotive Valve Actuator, Engine Governor Actuator, Engine Speed, Engine Management, Fan Clutch (Diesel), Flywheel Speed, Ignition Timing, Traction Control, CART Indy Cars, Drag Racing, Street Rods & Customs, SCCA, Off-road, Pro-Rally, Transmission, Clutch Control, Throttle Control
|Brake Controls, Jet Engines, Fuel Pump Monitor, APU, Turbochargers, Steering Mirror Actuator, Valve Actuator
|Centrifuge Speed Measurement, Proximity Switches
|Speed Control, Distance Measurement
|Off Highway, Agriculture, Construction
|Diesel Engines, Engine Powered Compressors, Engine Powered Generators, Hydraulic Motors
|Engine Powered Generators, Power Generation Turbines, Turbine Flow Meters, Wind Powered Generators, Engine Powered Compressors, Hydraulic Motors
|Bradley Fighting Machine, F8 Crusader, AAV7 Amphibious Assault Vehicle, Unmanned Aerial Vehicles
|Engine Controls, Turbines, Valve Position