Thermocouple Lab

NC STATE UNIVERSITY Mechanical Engineering Systems MES 305 Dr. Bill Fortney Temperature Measurements using Thermocouples spacious phase of the moon report format Laine Johnson Aaron Burge Lab undefiled June 20, 2011 Introduction The purpose of this research testing ground was to evidence the bill of liquid temperatures using thermocouples, the most common rule of quantity and controlling temperatures. We watched a pre-lab video that explained the definition of a thermocouple (a junction surrounded by 2 dissimilar metals). and so the video introduced the Seebek effect, the Peltier effect, the Thomas effect and the Law of negotiate Temperatures. During the lab we wontd thermocouples to demonstrate each of these effect and the Law of ordinary Temperatures. Thermocouples are suitable for measuring over a big temperature range, up to 2300?. They are not suited for instruments that need highly precise and accurate measurements. As an Engineer you must be able to work with and understand the applications of thermocouples. Here is a stimulate of applications that are well suited for the use of thermocouples: kilns, bumble turbine exhaust, diesel 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 electric potential 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 equality #1 Where A and B refer to the two materials that exemplify 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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