HOW MANY METHODS OF TEMPERATURE MEASUREMENT ? HOW MANY MEASURING DEVICES / TRANSDUCERS ?
Answers were Sorted based on User's Feedback
Answer / mohammed emaaduddin
I donno the exact number of methods of temperature
measurement. But the different measuring devices for
temperature measurement are,
Thermometers, Pyrometers, Resistance Temperature
Detectors(RTD), Thermistors, Thermocouples and Thermowells
Is This Answer Correct ? | 21 Yes | 6 No |
Answer / sudhansu
temperature can be measured my basically two ways...
a)by direct contact method in which we
have-rtds,tc,thermometers etc. where we have to make direct
contact of transducer with the mesurend.
& b)non contact type like pyrometer
Is This Answer Correct ? | 15 Yes | 0 No |
Answer / sandip patel
same with the addition bimettalic strip is also one of the measuring device for the temperature
Is This Answer Correct ? | 10 Yes | 2 No |
Answer / abbas
1.mechanical methods(expansion of materials,pyrometers)
2.electrical methods( rtd,tc,thermistors)
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / abhay raj
exactly the same answer as stated in ans. no- 4.
non contact method used to measure temperature is- RADIATION
PYROMETER
Is This Answer Correct ? | 1 Yes | 0 No |
in any transimitter (flow/level) there are three terminals for supply& test (+,-,+)in two wire,24VDC given to Tx.,but how 4-20 ma signal travels thru same wire (as it is for 24VDC input supply)?
What is Hysteresis mean in Instrument?
how to change 4 wire rtd transmitter into a 3 wire rtd transmitter? as our transmitter is working for 4 wire rtd, what should do for working on 3 wire rtd transmitter
what is shutoff dp? why is it important for selection of a control valve?
protection relay watchdog contact operation?
i have a dp tx range is 5000mmwc. in which calibration i use in a open tank.1.5*3.5*2.5 mtr.for level msmnt. what is the calculation.
pt range is -45 psi to 45 psi.friends can you give answer with calculation and with linerity scale like 0%,25%,50%,75%& 100%?
Where we r using split range and ratio controller?
what is axial shift n what is differential expansion in turbine? how many sensor probes r mounted for this n how it works?
Where is wet leg is used?
if conical type tank in top LEFT side solid material coming but LT MOUNTED IN TOP OF LEFT SIDE, how to measure ultrasonic level transmitter ?
admittance level sensor meaning?