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High-Output Emitter

Photonics Spectra
Feb 2010
Cal Sensors Inc. (See Opto Diode Corporation)Request Info
Cal Sensors announces the launch of PIREPlus, a high-output, high-pulse-rate emitter that can be pulsed as a source of blackbody radiation for near- to far-infrared applications at 180 Hz with 50% modulation depth. With a pulsing speed that the company says is 18 times faster than alternative technologies offer, it enables users to obtain accurate readings of materials and trace gases with concentrations at very low parts per million. The solid-state emitter maximizes signal-to-noise performance, expanding the measurement dynamic range and resolution. It produces output of 4 x 10—2 W/cm2 at 1 in. from the filament and includes integrated drive electronics in an industry-standard 14-pin DIP integrated circuit package. The device is suitable for use in a variety of applications, including industrial and medical gas analysis, environmental monitoring, process control instrumentation, spectroscopy and plastics sorting.


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A source of radiation.
In general, changes in one oscillation signal caused by another, such as amplitude or frequency modulation in radio which can be done mechanically or intrinsically with another signal. In optics the term generally is used as a synonym for contrast, particularly when applied to a series of parallel lines and spaces imaged by a lens, and is quantified by the equation: Modulation = (Imax – Imin)/ (Imax + Imin) where Imax and Imin are the maximum and minimum intensity levels of the image.
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