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  • Non-Dispersive Infrared (NDIR) Gas Detection
    Non-Dispersive Infrared (NDIR) technology utilizes a broadband infrared (IR) emitter, which covers all of the wavelengths of interest for a given set of gases to be measured. Optical Band Pass filters allow that portion of IR wavelengths at which a specific gas absorbs IR energy.
  • Back to the Basics: Infrared Absorption
    A typical non-dispersive infrared detector passes a pulsed source of infrared energy through the sample, and measures the energy received by two detectors. One "active" detector responds to wavelengths in the same band as the combustible gas, and the other detector responds to wavelengths
  • Selecting a Low-Maintenance Sensor for Safety Monitoring of Oxygen and Carbon Monoxide Levels in Industrial Processes and Environments
    For safety, legal, and compliance reasons industrial plants must monitor oxygen (O2) and carbon monoxide (CO) levels in processes and structures. Traditional technologies for. detecting these gases include paramagnetic, nondispersive infrared, electro-chemical cell, and zirconium oxide sensors
  • PAIR vs NDIR
    Photoacoustic Infrared Detection (PAIR) versus Non-Dispersive Infrared Detection (NDIR).
  • BioProcess Control: What the Next 15 Years Will Bring
    By Michael Boudreau, Emerson Process Management, Inc. and Trish Benton, Broadley-James Corp. Recently developed encoded photometric infrared analyzers can detect the constituents of multiple frequencies simultaneously. Unfortunately, array detectors that would allow rapid detection of the complete

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