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Infrared Detectors

Photonics Spectra
Apr 2011
Cal Sensors Inc. (See Opto Diode Corporation)Request Info
Cal Sensors has launched two families of lead-sulfur (PbS) infrared detectors and a digital drive board. The single-channel detector (SCD) and multichannel detector (MCD) families provide high sensitivity for a variety of infrared sensing applications. The digital drive board optimizes detector performance and speeds product development processes. The SCD-13HV (high value) PbS detectors meet requirements for high-volume, cost-sensitive applications. Proprietary process controls and automated production equipment result in high repeatability and suitable product consistency. Applications include fire safety and flame detection, and process and quality control. SCD detectors operate across the 1- to 3-μm wavelength range. Performance varies with element size and window type. The PbS and lead-selenium MCDs offer detection of up to four distinct materials/gases.


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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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