It was enjoyable working with and testing all the different sensors. Photo-transistor can be used as ambient-light detectors. When used with a controllable light source, typically an IRLED, they are often employed as the detector element of optoisolators and transmissive or reflective optical switches.
A flame sensor in its simplest form is a sensor capable of detecting the infrared emission of a flame as it differs from the emission of common fluorescent lighting.Using simple optoelectronics, such as infrared phototransistors, flame can easily be detected.
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