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  • Variable-Reluctance Sensors
    controls, and antilock-braking systems. Variable-reluctance (VR) sensors work well for these automotive applications because
  • Position and speed of metal components measured with variable reluctance sensor
    Variable reluctance sensors are used to measure position and speed of moving metal components. This sensor consists of a permanent magnet, a ferromagnetic pole piece, a pickup coil, and a rotating toothed wheel. As the wheel rotates, the reluctance of the flux path through the coil changes
  • The Switch to Switched Reluctance
    A quest for energy efficiency has fostered development of switched reluctance motors that are inherently simple and can supply variable speeds. They can be more efficient than induction motors and work at variable speeds. They are also inherently simple. For a time, they powered Switched-reluctance
  • The Switch to Switched Reluctance
    A quest for energy efficiency has fostered development of switched reluctance motors that are inherently simple and can supply variable speeds. They can be more efficient than induction motors and work at variable speeds. They are also inherently simple. For a time, they powered Switched-reluctance
  • Stepping Motors Fundamentals
    for these types of applications. There are three basic types of stepping motors: permanent magnet, variable reluctance and hybrid. This application note covers all three types. Permanent magnet motors have a magnetized rotor, while variable reluctance motors have toothed soft-iron rotors. Hybrid stepping
  • Precise Pumping Calls for Hybrid Steppers
    , but the focus here is on how improvements to hybrids help design better medical pumps. It's useful to start with a discussion about stepper motors in general and hybrids in particular. Other stepper types besides hybrids are called can stack and variable-reluctance (VR) motors. All steppers work
  • Dynamics of Hybrid Stepper Motors
    precision-machined teeth improving motor torque by redirecting magnetic fields within the stepper. Hybrid stepper motors combine the operating principles of variable reluctance with permanent-magnet stepper motors. The rotor shaft holds one or more pairs of stacked laminations containing many teeth along its
  • Agilent: Automotive Electronic Functional Test Using Agilent System Components
    , Variable Reluctance Sensors or other isolated AC voltages must be generated. These signals are low frequency, just like the Cam/Crank/TDC/Knock signals required by engine/ powertrain control modules. Body and ABS modules can require the driving of some high current loads, while Engine Control

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