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  • Magnetic Field Sensors as Speed Monitors
    Magnetic field sensors are generally based on the magneto-resistive or Hall-principle. Compared to optical speed sensors, resolvers and precision potentiometers, magnetic field sensors do not contain movable parts, such as shafts, bearings, code disks or slip rings. An aspect allowing them
  • Monitor Coal Feeder Conveyor Speeds for Precise Discharge
    The Electro-Sensors SA420 Signal Conditioner, 907XP Hall Effect Sensor and Split. Collar Pulser Wrap. can be used to modulate gravimetric conveyor shaft speed for precise coal discharge.
  • No problem with noncontacting sensors
    Invensys Sensor Systems, El Paso, Tex., (Clarostat Div.) has developed a rotary Hall-effect position sensor, the HRS100, that cuts cost by integrating all compensation circuitry into a single factory-programmed sensor ASIC. Resistive potentiometers or "pots " have long been used for rotary position
  • Position Sensors and Position-Sensing Instruments
    Position sensors include wide range of sensors, switches and technologies that are used to determine the placement, speed or movement, direction, and location of a given target. Linear position devices include cable extension, capacitive, eddy current, fiber optic, Hall effect, inductive, magneto
  • Industrial encoder integrates bearing and sensor functions
    north and south poles is placed near the Hall element inside the bearing seal. When the ring spins, the waterproof Hall sensor provides an output signal that determines the speed (and position) of the ring. A single or dual Hall-effect sensor brings the signal out to a waterproof industrial-grade
  • Application Note: Speed Transducer (SOLID STATE) (.pdf)
    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 latching sensor to guarantee a duty cycle close to 50 percent, one of the advertised features.
  • Ten Easy Things to Do with Magnetic Sensors
    the past 20 years, inexpensive, high-quality integrated Hall effect and magnetoresistive sensors have been making many applications both technically and economically feasible. This article presents a small sampling of what these sensors can do and how to make them do it.
  • Magnetic Sensing
    transducers can be accurate to hundredths of a mechanical degree. For sensing rotating shaft speed, on the other hand, output-pulse frequency is converted to rpm at an accuracy of 0.1%. Magnetic sensors measure speeds up to 600,000 rpm. Maximum sensor frequency is in the megahertz region, with usable

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