Answer Posted / hgh
Two dissimilar material jointed together it is called hot
junction and kept free other end it is called cold junction.
An emf induced at cold junction it directly proportional to
temperature difference between two junctions. For example
the hot surface is in 300 deg c (hot junction) and room temp
is 30 deg c (cold junction) you will get mv which is equal
to 270 deg c.
When the junction of dissimilar metals are kept at different
temperatures,then an emf is introduced b/w both the junction
| Is This Answer Correct ? | 12 Yes | 3 No |
Post New Answer View All Answers
why fuse block is not used for AI signal?
If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?
what are the diff. in servo and regulatory control?
Please tell me details about Sox,Nox,SWAS analyser????
What is mean by analytical instrumentation?
Draw block digram for well head from well to shipping pump?
how to tune siemens sipart electro pneumatic positioner..plz tel me..
all questions related to instrument technician in any offshore oil and gas company.
How is automatic reference junction compensation carried out in temperature recorders?
What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).
What are primary elements of measuring pressure?
What is difference between ESD and PLC please Explain me clearly.
what diffrence b/w plc s7200,300,400
What are the uses of orifice plates?
how to calibrate Necleuonic level transmitter.?
