what is working principle of presure and temperature guage?
Answer Posted / b0nz0
There are numerous types of both gauges.
The most common type of pressure gauge is the Bourdon tube.
This consists of a 'C' shaped tube closed at one end. When
pressure is applied to its open end, the tube tries to
straighten due to its oval cross section. This movement is
amplified by a mechanical linkage and gears to give
sufficient movement on a pointer.
One type of temperature gauge also uses a similar principle
where the Bourdon tube is part of a sealed system which is
filled with a fluid. The fluid expands with increasing
temperature causing the pressure in the sealed system to
increase.
Another common type of temperature gauge is the bi-metalic
gauge which depends on the difference of expansion between
two dissimilar metals. The bi-metalic element is
constructed as a helix to give sufficient rotation of the
pointer.
| Is This Answer Correct ? | 38 Yes | 4 No |
Post New Answer View All Answers
what is cold loop? difference between hot and cold loop?
Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?
send me HPCL paper
What is the difference between ff transmitter and non ff transmitter
typical loop drawing of a simple feedback control comprising of one transmitter and one control
Which is your favourite subject & explain any one topic of it.
I have energy meter for educational project having 0.5s class but my friend need 0.2s class meter , which one is good for that purpose and what is the actual difference of that two classes , need very easy example also.??
I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.
Explain the key components of control loop?
what is the reason while warning lamp is on while the engine is cranking?
How to calibrate the flow transmitter
why micro controller 8051/52's clock frequency is internally divide by 12 ?? and why it is further divide by 32 in UART serial communication ??
please can any one tell me clearly about pid tuning i am confusing about this .how to tune pid easly?
How hart protocol can be connected with control valves?
Why mmwc unit is used?