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Ask The Experts"Ask The Experts" is moderated on ControlGlobal.com by noted process control authority and CONTROL Columnist Bela Liptak. Liptak either answers the questions himself, or brings in one or more experts from his cadre of co-authors that worked with him on the Instrument Engineers' Handbook, Fourth Edition. Save yourself the hefty consulting fees by getting the answers to your questions here.

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Do multiple sensors improve accuracy?

Is there a process control degree and if so, at which universities?

By Béla Lipták
Dec 28, 2018

*Q:* I'm quoting from Chapter 1.1 of your "Instrument Engineers' Handbook," Volume 1 (5th Edition): "In critical applications, reliability and accuracy can both be increased by the use of multiple sensors through the averaging of their outputs. ... measurement error in that case will be reduced by the square root of the number of sensors...."

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