Thermocouple is a transducer but rtd is not transducer why?
Both taking heat as a input and giving mv

Answer Posted / ulaganathan

in GENERAL CONSIDER AN THERMOCOUPLE WHENEVER IM
GIVING HEAT(PHYSICAL PARAMETER) THERE EXIST GENERATION
OF POTENTIAL RESISTANCE(ELECTRICAL PARAMETER) BY
SEEBECK EFFECT.IT IS AN SECONDARY IT IS AN SECONDARY
ONE

BUT INCASE OF AN RTD FOR THE CHANGE IN PHYSICAL
PARAMETER THAT IS HEAT IS CONVERTED TO CHANGE IN
DISPLACEMENT OF COIL (AGAIN AN PHYSICAL PARAMETER
MEASURESED. HENCE ITS AN SENSOR.IT IS AN PRIMARY ONE

Is This Answer Correct ?    2 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d

4356


What should be the main consideration while starting the Rotating compressor when we dont know the cut in and the cut off pressure setting of the pressure switch

1696


Difference between 2-Valve Manifolds, 3-Valve Manifolds and 5-Valve Manifolds 3 with diagram

2683


How earthing can be checked????

1962


Instrumentation symbols interpration, P& ID, Logic diagram analysis, Electrical drawing analysis.

1489






How to work togather like sov,limit switch,proxy switch and booster in xv

3738


1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.

2215


How can measure flow in oil line?which type of transmitter is generally used?

3536


For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?

4998


Sir, I am working as a Instrument Engineer in Grasim Industries. Can any body provide question answer for interview purpose

1672


How to find out the current of two motors having same power consumption but different RPM?

1533


Why ac supply load cell is used? Can we use the dc supply load cell?

594


In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.

1494


what is a vortex flow meter,mass flow meter and electromagnetic flow meter.particular use of this.means in which condition particular meter is used.

1726


flow transmitter formula?

2357