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.

A sensor manufactured by Magnetic Sensors Corporation, featuring a Hall Effect sensor technology. The sensor is enclosed in a durable 303 stainless steel casing. It has a digital output and does not contain any moving parts or contacts. The sensor operates on a voltage range of 4.5 to 24Vdc and functions reliably in temperatures from -40°C to +125°C. With its rugged design and adaptable configuration, this versatile sensor is commonly utilized in applications such as engine governor/controls, transmission, diesel engines, hydraulic motors, turbines, and power generation.

Features

    • 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
Sizes Available
Tubular.250″ to .500″ dia
UNF Thread1/4-28 to 3/4-16
Metric ThreadM12X1.25 TO M22X1.5

 

Other sensors in this category

 

An image of Magnetic Sensors Corporation sensor with part number427038-10 Hall Effect sensor with near zero speed sensing, housed in a 303 stainless steel casing. The sensor features a digital output, and has no moving parts or contacts. It can operate on a supply voltage ranging from 4.5 to 24Vdc, and can function in temperatures between -40°C to +125°C. The mounting thread size is 5/8-18 UNF 2A, with an overall length of 2.5in. Its rugged design and ability to be configured for various environments makes it a versatile choice. This sensor is commonly used for engine governor/controls, transmission, diesel engines, hydraulic motors, turbines, and power generation.

MSC 427038-10

Description:  Hall Effect Speed Sensor

Thread:  M16 X 1.5

Thread Length:  3.13 in

Lead Wire Length: 4.25 in

     

An image of Magnetic Sensors Corporation sensor with part number 427038-20 Hall Effect sensor with true zero speed sensing, housed in a 303 stainless steel casing. The sensor has a mounting thread size of 5/8-18 UNF 2A, and an overall length of 4.00in. It features a digital output, and has no moving parts or contacts. The sensor can operate on a supply voltage ranging from 4.5 to 24Vdc, and can function in temperatures between -25°C to +125°C. Its rugged design and ability to be configured for various environments makes it a versatile choice. This sensor is commonly used for engine governor/controls, transmission, diesel engines, powered compressors, hydraulic motors, turbines, and power generation.

MSC 427038-20

Description: Hall Effect Speed Sensor

Thread : 5/8-18 in UNF-2A

Thread Length: 4.00 in

Lead Wire Length : 7.00 in

 

An image of a Magnetic Sensors Corporation sensor with part number 427015-10. This Hall Effect sensor features true zero speed sensing, and is housed in a 303 stainless steel casing. It has a digital output, and contains no moving parts or contacts. The sensor can operate on a supply voltage ranging from 4.5 to 24Vdc, and can function in temperatures between -40°C to +125°C. Its rugged design allows it to be configured for most environments, with customized versions available. This versatile sensor adapts to various configurations, and is commonly used in applications such as engine governor/controls, transmission, diesel engines, powered compressors, hydraulic motors, turbines, power generation, and speed control.

MSC 427015-10

Description: Hall Effect Speed Sensor

Thread: 8-32 UNC

Thread Length: 3.07 in

Lead Wire Length: 3.63 in

An image of Magnetic Sensors Corporation sensor with part number427038-10 Hall Effect sensor with near zero speed sensing, housed in a 303 stainless steel casing. The sensor features a digital output, and has no moving parts or contacts. It can operate on a supply voltage ranging from 4.5 to 24Vdc, and can function in temperatures between -40°C to +125°C. The mounting thread size is 5/8-18 UNF 2A, with an overall length of 2.5in. Its rugged design and ability to be configured for various environments makes it a versatile choice. This sensor is commonly used for engine governor/controls, transmission, diesel engines, hydraulic motors, turbines, and power generation.

MSC 427009-60

Description: Hall Effect Speed Sensor

Thread:  –

Thread Length:  –

Lead Wire Length: 61.50 in

  

An image of a Magnetic Sensors Corporation sensor with part number 42013-70. This Hall Effect sensor features true zero speed sensing and is housed in a 303 stainless steel casing with a thread size of 15/32-32. The housing length is 1 inch and the cable length is 16 inches. The sensor has a digital output and contains no moving parts or contacts. It can operate on a supply voltage ranging from 4.5 to 24Vdc and can function in temperatures between -40°C to +125°C. Its rugged design allows it to be configured for most environments, with customized versions available. This versatile sensor adapts to various configurations and is commonly used in applications such as engine governor/controls, transmission, diesel engines, powered compressors, hydraulic motors, turbines, and power generation.

MSC 427013-70

Description: Hall Effect Speed Sensor

Thread : 15/32-32 UN 2A

Thread Length: 1.00 in

Lead Wire Length : 16.00 in

 

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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.

SENSOR TYPE
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

 

INDUSTRYAPPLICATIONS
AutomotiveAnti-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
Aviation/ AerospaceBrake Controls, Jet Engines, Fuel Pump Monitor, APU, Turbochargers, Steering Mirror Actuator, Valve Actuator
BiotechCentrifuge Speed Measurement, Proximity Switches
Exercise EquipmentSpeed Control, Distance Measurement
Off Highway, Agriculture, ConstructionDiesel Engines, Engine Powered Compressors, Engine Powered Generators, Hydraulic Motors
Power GenerationEngine Powered Generators, Power Generation Turbines, Turbine Flow Meters, Wind Powered Generators, Engine Powered Compressors, Hydraulic Motors
MilitaryBradley Fighting Machine, F8 Crusader, AAV7 Amphibious Assault Vehicle, Unmanned Aerial Vehicles
RailroadEngine Controls, Turbines, Valve Position