By Jim Raymont and Paul Mills, EIT Instrument Markets If the optics on a radiometer look dirty, the first reaction of many people is to clean them with whatever is handy – a shop rag, a shirt sleeve or finger. Sometimes optics get cleaned with a dry cloth and other times they are cleaned with whatever solvent is handy. A little to a lot of elbow grease also might be applied. … [Read more...] about It’s What You Don’t See …
