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High-output infrared emitter for medical gas analysis

Cal Sensors

The PIREPlus  is a high-output, high-pulse rate emitter that can be pulsed as a source of blackbody radiation for near-to-far infrared applications at 180Hz with 50% modulation depth. Launched by Cal Sensors, Santa Rosa, CA, it has a pulsing speed 18 times faster than alternative technologies; it maximizes signal- to-noise performance, expanding the measurement dynamic range and resolution for trace gases with very low parts per million. The emitter has high output (4x10-2 watts/cm2 at 1 inch from filament), has enhanced signal-to-noise ratio, is compatible with a wide range of detector technologies, and comes in an industry-standard T0-5 header package. The radiating element is an ultra-thin, specially designed metallic foil configured to ensure that radiation from both sides of the heated foil is efficiently directed out of the package along the optic axis. Integrated drive electronics are in an industry standard 14 pin-dip IC package and are voltage variable, letting users select from a wide range of frequencies between 1Hz and 500Hz according to application needs. The ability to provide peak pulse temperatures independent of the pulse frequency ensures maximum output for any application. These include medical and industrial gas analysis, environmental monitoring, process control instrumentation, spectroscopy, and plastics sorting.

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