Editing Electrical engineering (section)

===Instrumentation===
{{Main|Instrumentation engineering}}
[[File:F-18E cockpit m02006112600499.jpg|thumb|right|[[Flight instrument]]s provide pilots with the tools to control aircraft analytically.]]
[[Instrumentation engineering]] deals with the design of devices to measure physical quantities such as [[pressure]], [[Volumetric flow rate|flow]], and temperature.{{Sfn|Grant|Bixley|2011|p=159}} The design of such instruments requires a good understanding of [[physics]] that often extends beyond [[electromagnetic theory]]. For example, [[flight instrument]]s measure variables such as [[wind speed]] and altitude to enable pilots the control of aircraft analytically. Similarly, [[thermocouple]]s use the [[Peltier-Seebeck effect]] to measure the temperature difference between two points.{{sfn|Fredlund|Rahardjo|Fredlund|2012|p=346}}

Often instrumentation is not used by itself, but instead as the [[sensor]]s of larger electrical systems. For example, a thermocouple might be used to help ensure a furnace's temperature remains constant.<ref>{{cite book|title=Manual on the Use of Thermocouples in Temperature Measurement|url=https://books.google.com/books?id=Pos-MXDWb6MC&pg=PA154|date=1 January 1993|publisher=ASTM International|isbn=978-0-8031-1466-1|page=154}}</ref> For this reason, instrumentation engineering is often viewed as the counterpart of control.