How do instruments calculate things using absorption of light?

AI Thread Summary
Instruments calculate properties of objects through the absorption and reflection of light using algorithms based on principles of physics and mathematics, often involving differential reflectometry. These algorithms analyze how light interacts with materials to determine specific characteristics, such as chemical composition. An example of such a device is the SCiO, a pocket molecular sensor that can identify substances by measuring light absorption. The discussion emphasizes the importance of understanding the mathematical foundations behind these algorithms, which may not necessarily require calculus. Overall, the conversation highlights the intersection of technology and science in measuring material properties through light.
Nerdydude101
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Supposedly devices use special algorithms to determine specific things about an object by its absorption or reflection of light, how exactly would such equations work? (if this isn't calculus then please tell me and ill post it somewhere else, i wasn't sure what type of mathematics this would be)
 
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Nerdydude101 said:
Supposedly devices use special algorithms to determine specific things about an object by its absorption or reflection of light, how exactly would such equations work? (if this isn't calculus then please tell me and ill post it somewhere else, i wasn't sure what type of mathematics this would be)
Provide an example of a device of that kind.
 
Watch the video
https://www.kickstarter.com/projects/903107259/scio-your-sixth-sense-a-pocket-molecular-sensor-fo
 
Google "differential reflectometry", for instance
 

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