Sunlight sensors detect the amount of solar radiation to improve air conditioning efficiency and provide a higher comfort level for driver and passengers in vehicles with separate cooling zones. Hamamatsu's S8369 sensor uses a photodiode to measure the infrared heat load of the sun's rays and a special cap shape to achieve a wide-angle of directivity. The one-piece plastic package design integrates the sensor assembly and connector in a single housing. The unit has a spectral response from 320 to 1100 nm. To meet passenger compartment requirements, the sensor has an operating temperature of -30 to +80C. Custom versions address different specifications, including multiple zones, and added functionality. For more information on Hamamatsu's sunlight sensor go to: http://rbi.ims.ca/4914-501
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.