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  • Sensor Sense: Passive Infrared-Motion Sensors
    Passive infrared (PIR) sensors detect infrared energy radiating from objects within their field of vision. Unlike infrared optical sensors that use an LED transmitter and IR receiver, the PIR emits nothing. As its "passive " name suggests, it responds only to infrared energy radiated by the object
  • Automotive Crossover Filters
    of passive crossovers that can be implemented, starting with the capacitor or inductor in series, and getting complex as more capacitors and inductors are added. The CWS’ AC Series of inductors are ideally suited for both active and passive crossover filters. Please select the inductance and current
  • Terms Used When Discussing Filters
    filters or particles creating a tortuous path of nominally rated size. Differential Pressure: The difference in pressure between the upstream and downstream sides of the filter. Diffusion Test: A test to determine the integrity of a filter. The test is based upon the transition from diffusional flow
  • Design Considerations When Applying Various ASD Topologies to Meet Harmonic Compliance
    appropriate one for. their particular application. Using computer simulation. and laboratory measurements, this paper analyzes the. most common passive solutions which include AC line. reactors or DC link chokes, phase shifting to produce. multi-pulse ASD's and inline passive harmonic filters. Various
  • Advances in Surface Mount Filtering Technology
    computer products are prime examples of devices offering greater functionality in ever smaller packages. These requirements, combined with increasing frequencies, lower signal levels, more densely populated boards and, not least, EMC legislation, have driven the need for new, higher performance passive
  • Wall Shear Stress Measurements in Two-Phase Flow using PIV, an Optical Sensor, and Wall Pressure Transducer (.pdf)
    the boundary layer. The wall shear stress in the channel was measured by means of three independent methods: measurement of the pressure gradient by an accurate differential pressure transducer, Particle Image Velocimetry (PIV), and an optical wall shear stress sensor. The three methods showed
  • Introduction
    resulting from current flow in a fuel cell. The text concludes with Chapter 13 on passive electrical circuits. QuickField includes a CAD-based electrical circuit simulator that simulates circuits with AC or transient time dependence. Applications include filter circuits and equivalent circuit models
  • Medical Device Link . Microspheres, part 1:
    based on differential settling times of agglutinated and unagglutinated microspheres. Encapsulated superparamagnetic particles consist of a polymer/magnetite core sealed in a pure polymer shell or outer layer to protect sensitive enzymes from contact with iron oxide. Microspheres are dyed either

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