Answer / sreenivasulu

wheat stone bridge is used for measuring resistance and
pirani gauges are used for measuring small pressures and
strain gauge is depends on the principle of when strain is
applied to conductor the length increases and resistance
increases

Answer / www.islamqa.com

wheatstone bridge used in many circuits for variety of
purposes , it's main idea is to change 1 resistor of 4
resistors and get this resistance change in form of voltage
change.

Strain gauge is a "pressure sensitive resistance" which
attached to the wheatstone bridge to consist "pressure
transmitter"/pressure monitoring system.

R chnage by pressure as R=L*(ROH)/A , L:LENGTH and A:AREA
are changing by pressure , this leads to R change.

Answer / priya

pirani gauge is explained with the help of wheatstone
bridge circuit.temperature variation is caused by the
resistance changes in case of pirani gauge

Answer / malhotra g singh

WHEATSTONE BRIDGE IS INVENTED BY WHEATSTONE.PIRANI GAUGE
AND STRAIN GAUGE ARE INVENTED BY PIRANI AND STRAIN
RESPECTIVELY.WHEATSTONE BRIDGE IS A BRIDGE WHEREAS PIRANI
GAUGE AND STRAIN GAUGE ARE GAUGES.

whats the diff b/w zero pressure and obsolute pressure

4 Answers  

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Furnace draft transmitter range is -50 to +50 mmwc. why the impulse line connected in hp side?

2 Answers   Arena,

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What is the use of temperature compensation?

0 Answers  

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if field commnictor 475 does not communicate with transmitter what will you do ?

4 Answers   Samsung,

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In control valves (like feed water control valve) we will give 3 kg pressure and how it controls 110 kg of water pressure?

4 Answers   SSL,

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if the neutral and ground of ups voltege are connected together in the source itslef then why the voltege b/w neutral and ground comes positive in some other destination inspite of having earth pit. how can we mimmise this?

1 Answers   MPL,

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Can we use thermocouple in generator of power station replace RTD(pt 100)? if we don't have any place for use RTD.

2 Answers  

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why the steam drum and deaerator level transmitter range is in negative MMWC to zero

3 Answers   Emerson, Jindal, JKPM,

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can we copy the software from a transmitter using hht(hart 275) ?

0 Answers  

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What is defferent betwen ESP &PCP PUMP .HOW IT IS WORK?

0 Answers   Jindal,

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what is the difference between laminor flow and turbulant flow

2 Answers   Invensys,

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How do you identify an orifice in the pipeline?

0 Answers  

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