Rotational Speed Sensors

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  • Speed Measurement
    A new generation of turbocharger rotation speed sensors for test-cell and on-vehicle testing enables more precise measurements on turbocharger blades made from titanium or aluminium.
  • Sensorless and Always Without Reverse Rotation: Rapid and Accurate Startup for Blower Fan Motors
    In modern fans or pumps, cost savings and power efficiency incentives are pushing motor designs toward sensorless motor drivers. Conventional motor drivers use trapezoidal motor control with three Hall sensors: The Hall sensors give the rotor position, and the motor generates a robust torque
  • Six Things To Consider When Building Advanced Driver Assistance Systems
    (magnetic) sensors that enable real-time, accurate measurement of variables such as rotational speed, position, and distance. For example, camera-based sensor ICs capture information from the surroundings, such as proximity to vehicles and obstacles, which then relay the information to functional
  • Resistor Databook
    : To control the charge or discharge current and stabilize load. ? Motor: To control the rotation speed, either steady or variable. Re: Current sensor When loading current is low, current flows in direction 1. When loading current is increased to a certain level and turns Tr2 on, current flows
  • Mixer Viscometry
    precision measurements of torque and impeller rotational speed for a given geometry can determine apparent viscosity in the mixing vessel, is well documented at laboratory scale. The trials reported are based upon scale down mixing geometries, relying on traditional off-line rheometer/viscometer
  • How a Vortex Flow Meter Works
    vortices being shed from a bluff rotate in different directions, the signal being sent from an ultrasonic sensor will speed up or slow down based on the direction of rotation relative to the direction the signal is traveling. This shift in speed, when compared to a constant, can be used to create
  • PT 104: Cooling Towers and Process Cooler Fans
    provides early warning of machine degradation and impending disaster. In the past, vibration monitoring was a technical challenge due to slow rotational speeds, a variety of support structures, and wet corrosive environments. Mechanical ball/spring vibration cutoff switches were traditionally used

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