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Speed Sensing - Application Note
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Speed Sensing - Application Note
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Speed Sensing - Application Note
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From Honeywell Sensing and Control
 

 
APPLICATION DESCRIPTION Speed sensing can be achieved with a variety of approaches. One solution is to use a ferrous metal gear target with a geartooth sensor. The geartooth passes by the sensor face which concentrates the magnetic flux from the bias magnet in the sensor. The sensor detects the change in the flux level, and translates it into a change in the sensor output. Another approach for speed or RPM sensing is to use a digital Hall-effect sensor with a ring magnet. As the poles of the magnet pass by the sensor, the output is changed. Speed or RPM sensing can be used for a variety of applications including: camshaft and crankshaft, transmission, tachometers, antiskid/traction control, sprocket speed, conveyor speed, stop motion detection, counters. Speed sensing is done in applications in: automotive, agricultural and construction equipment, buses, trucks, lawn and garden equipment, golf carts, ski mobiles, escalators, and automation equipment to name a few.
Products & Services
Magnetic speed sensors rely on a magnet as the sensing element or sensed target to capture rotational or linear speed. They are typically used as gear tooth speed sensors or incorporated into stroboscopes or tachometers.
Tachometers are used to measure the velocity of a rotating object. They operate on the principle that a driven motor (i.e., a motor operated as a generator) produces a voltage that is proportional to the angular velocity of the motor shaft.
Linear motors generate force only in the direction of travel. They are capable of extremely high speeds, quick acceleration, and accurate positioning.
Industrial vehicles are driver controlled self propelled vehicles designed for a variety of applications. These include personnel transportation, load carrying as well as other specialty applications.
Cam manufacturing services fabricate cams to customer specifications and often provide design assistance.
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Product Announcements
SSI Technologies, Inc - Controls Division - Magnetic Sensor Solutions
SSI Controls Technologies Division is a leader in the design, development and manufacturing of passive (Variable Reluctance) and active (Hall Effect or Magneto-Resistive) magnetic sensors. SSI has... (read more)
Magnetic Sensors Corporation - 1/4 inch Diameter Hall Effect Sensor
1/4" dia. Hall Effect Geartooth Sensors Magnetic Sensors Corporation offers full-function Hall-effect sensors provide high-speed, true-zero speed sensing for limited space applications. (read more)
Temper Corporation - Speed Sense™ Magnet Rings
Introducing patented Speed Sense™ Magnet Rings ideal for speed control, direction and speed sensing, counting applications, and incremental encoders. The low profile rings are designed to be... (read more)
Temper Corporation - Magnetic Speed Sensors - custom
Temper Corporation manufactures custom magnetic speed sensor assemblies using magnet ring technology which can be supplied with various sensor technologies icluding hall effect, reed switch, and... (read more)
Honeywell Sensing and Control - Hall Effect Speed Sensors
(MHS Series) with modular construction that allows a choice of probe lengths, connector types and multiple connector orientations. Precise switch point measurement in a package that supports a variety... (read more)
Temper Corporation - Asphalt Recycler Speed Sense Magnet Ring
The Asphalt Recycler Speed Sense Magnet Ring features a 304 stainless steel inner sleeve and outer shell design configuration. (read more)
Renishaw - 13-bit magnetic rotary encoders - 8192 counts/rev
World's first 13-bit magnetic rotary sensors/encoders deliver high performance, reliability and application versatility at cost economies. The units provide 8192 counts/revolution with non-contact,... (read more)
SenDEC Corporation - Dual Maintenance Gauge
SenDEC's Dual Gauge is the solution to maintenance challenges when room and cost are a concern. This meter incorporates a variety of gauges in the top window and in the bottom window. (read more)
OnAxis magnetic encoders bring high performance, solid-state construction, simple in-line mounting and low price to motor control, shaft position and velocity measurement applications for OEM... (read more)
Electro-Sensors, Inc. - HE950 Proximity Sensor
Electro-Sensors' HE950 proximity sensor incorporates dual Hall-Effect sensing and signal processing that make it capable of operating across a broad range of target sizes. A single sensor size can be... (read more)
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Topics of Interest
A Midwest manufacturer of automotive sensors uses Hall effect devices in their Speed Transducer to detect crankshaft rotation in automobiles and trucks. The customer required a very high sensitivity... (Read More)
Introduction Basically, four different types of DC motors are used in industrial applications: series wound, shunt wound, compound wound, and permanent magnet. Several factors must be considered when... (Read More)
Specialty Motors General Principles of Operation-Stepper A step or stepper motor is one in which electrical pulses are converted into mechanical movements. A standard DC motor, for example, rotates... (Read More)
TYPES OF MOTORS Alternating-Current Motors SQUIRREL-CAGE INDUCTION MOTOR  By far the most common motor used to drive pumps is the squirrel-cage induction motor (Figure 1). This motor consists of... (Read More)
Permanent Magnet (PM) Brushless Motors  The permanent magnet brushless dc motor has been in existence for about three decades and is finally being widely used for many applications1,5,6. Its... (Read More)
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Technical Articles
Hall Sensor - Test Geartooth Sensing - Sensors, Transducers and Detectors
Opto Sensors - Typical Applications - Sensing and Measurement Instruments
High-Speed Videography Using a Dense Camera Array - Video Cameras and Accessories
Atmospheric Remote Sensing - Data Acquisition and Signal Conditioning
Inside and Out: Math Model Allows for Greater Production Speed, Cost Savings - Temperature Sensing
Fiber Optic Lever Displacement Transducers: Principles, Improvements, & Applications - Displacement Sensing
Fast Response Optical Sensors Prove Invaluable in Demanding Gaging Applications - Displacement Sensing
High-Speed Cycle Clutch and Brake Improve Machine Efficiency - Clutches and Brakes
Motion Control Solutions for Labeling and Packaging - Machine and Motion Controllers
Technical Articles on Humidity - Humidity and Moisture Sensing
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See more product announcements for Magnetic Speed Sensors
High Temperature Speed Sensors

High Temperature Speed Sensors
Motion Sensors, Inc.


Explosion Proof Speed Sensors

Explosion Proof Speed Sensors
Magnetic Sensors Corporation


Digital Speed Sensors and Active Speed Sensors

Digital Speed Sensors and Active Speed Sensors
Smith Systems, Inc.


11 See more product announcements for Magnetic Speed Sensors

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