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IR Detectors

Feb 2011
Cal Sensors Inc. (See Opto Diode Corporation)Request Info
Cal Sensors has launched two families of lead-sulphur (PbS) IR detectors and a digital drive board. The single- and multichannel devices provide high sensitivity for a variety of IR sensing applications. The digital drive board optimizes performance and speeds product development processes. The PbS and lead-selenium multichannel detectors provide high sensitivity for detection of up to four distinct materials/gases. Covering the 1- to 5-μm range, they provide channel isolation of >99.5% and a compact TO-5 footprint. The four-channel configuration reduces cost and simplifies design, minimizing the need for multiple individual detectors and complex optics. System costs and footprints can be reduced by up to 60% versus alternative single-detector designs, according to the company. Applications include medical gas analysis.


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process control
The collection and analysis of data relevant to monitoring the rate and quality of industrial production, either continuously or in batches. Corrections can be made manually or automatically, via a feedback control loop.
A solid-state semiconducting structure (basically one of the bolometers) that changes electrical resistance with temperature. Materially, some kind of ceramic composition is used. A thermistor has much higher electrical resistance than metallic bolometers and hence requires much higher voltages to become useful.
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