Thermocouple Lab

NC STATE UNIVERSITY Mechanical Engineering Systems MES 305 Dr. Bill Fortney Temperature Measurements using Thermocouples safe phase of the moon report format Laine Johnson Aaron Burge Lab complete June 20, 2011 Introduction The purpose of this research science laboratory was to evidence the bar of liquid temperatures using thermocouple junctions, the most common rule of criterion and controlling temperatures. We watched a pre-lab video that explained the definition of a thermocouple (a junction surrounded by 2 dissimilar metals). thus the video introduced the Seebek effect, the Peltier effect, the Thomas effect and the Law of negotiate Temperatures. During the lab we mathematical functiond thermocouples to demonstrate each of these effect and the Law of negociate Temperatures. Thermocouples are suitable for measuring over a life-sized temperature range, up to 2300?. They are not suited for instruments that need extremely precise and a ccurate measurements. As an Engineer you must be able to work with and understand the applications of thermocouples. Here is a carry of applications that are well suited for the use of thermocouples: kilns, assail turbine exhaust, diesel motor motor engines and many gas-fed heating appliances (ovens and water heaters that make use of a pilot flame to ignite the main gas burner). germane(predicate) Theory When working with thermocouples you will need to know the 3 effects and the laws pertaining to the thermocouple. 1) The Seebek effect showed that a thermocouple produced a potential difference dominance (or emf), measured in millivolts, in the wire which in morsel caused a temperature difference.

There is a reproducible birth between the emf and the temperatures (T1 and T2). Seebek effect ?AB = [?emf?T]opencircuit comparison #1 Where A and B refer to the two materials that bear the thermocouple. emf is the voltage potential T...If you indigence to get a full essay, order it on our website: OrderCustomPaper.com

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