Answer Posted / mutyalarao
akshay it is exactly correct ,
BUT i can say briefly,
1.the temperature measuring element formed of TWO DISSIMILAR METALS OF DIFFERENT ELEC PROPERTIES COPUPLED TOGETHER ,
2. MAIN PRINCIPLE/ PHENOMENA IN THIS MEASUREMENT IS CONDUCTION PROPERTIES OF METAL (acc to MATERIAL SCIENCE & THERMODYNAMICS ),
3.CHANGE IN THE ELEC PROPERTIES i.e .FLOW OF EMF THROUGH THE METAL WEN IT IS SUBJECTED TO TEMPERATURE DUE TO THE TEMP & ELEC PROPERTIES CHANGE.and diff metals hav diff elec properties.
4.so wen we join these metals , and apply temp to these metals ,they produces the differential voltage produced through them i.e . let us say metal 1 produce e1 , sim`ly metal2 produces e2 ,therefore net voltage produced is e12=e1-e2 or e2-e1
5.not all metals r suitable for thermocouples,those suitable which their elec properties changes with temp
Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
how to calibrate Necleuonic level transmitter.?
PLEASE PROVIDE SAMPLES OF CHEVRON SKILL TESTS
I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.
what is Best Among SINK Or SOURCE Type Design In Digital Signal, Either Iput Or Output? WHY?Can any one..
can anyone tel the syllabus or previous year question paper for BHAVINI(EIE)2014.
Please any one can provide latest aptitude test,technical test and interview questions for tata consulting engineering (TCE) i need it asap thanks in advance
What is the use of single seated valve?
why we use 3 wire rtd direct wiring for temperature measurement instead of temperature transmitter like bearing temperature
plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}
how to calibrate load cell
Can I route 110 VDC and 24 VDC in a same Duct for our Interposing relay cabinet? IF yes or NO Please provide me IEEE Std. for the same. Please i required it on Urgent basis, i need to design IRP Cabinets and we have MCC 110VDC and Our Coil side is 24VDC, Please help as soon as possible.
What are the error values can accepted in flow transmitter calibration?could u give any formula for this?
What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus
what is IEC code in cables & how to selecting cables?
Specify for Cables - Flame Retardant and Fire Resistant?