Interested to Buy Any Domain ? << Click Here >> for more details...
where Pirani gauges are uesd in case of pressure measurement?
- 3 Answers
- 7808 Views
- I also Faced
- E-Mail Answers
Answer Posted / anand soni
The application of the Pirani gauge to the measurement of small pressure changes is discussed. Both nickel and tungsten wires are used as filaments in the gauge. Nickel wire not only has the greater sensitivity but possesses several other advantages. The theory of the gauge is developed so that it is possible to predict the effect of change in length or diameter of the wire upon the sensitivity of the gauge. The theory also predicts that there is an optimum temperature to which the wire should be heated for maximum sensitivity of the gauge. The observed and computed values of the optimum temperature are compared. In some cases the agreement is as good as can be expected and in the others the discrepancy is easily explained. The maximum sensitivity attained is a galvanometer deflection of 1 mm for a pressure change of air equivalent to 5×10-9 mm of mercury.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
In dcs panel we are using diff type of modules ?what is module ? what is the use of modules ?diff type of module?
How to calibrate H2s Dectector
can anyone tel the syllabus or previous year question paper for BHAVINI(EIE)2014.
hi,i am doing 3 year in electronic and instrumentation engineering. what type of aptitude questions will be asked in a core industries and how can i improve my skills in instrumentation?
HOW CREATED LP & HP PRESURES IN DRUM FOR DRUM LEVEL MEASUREMENT!
Tell about your IFFCO plant visit.
How to Calibrate Interface Level Troll in field
send me last 5 years questions asked in rrb chennai, for section engineer
CONTROL VALVE OPERATING IN MANUAL BUT NOT IN MANUAL. WHAT SHOULD BE THE PROBLEM ?
How digital input and digital output 's are working in dcs
Explain an adaptive / self-tuning controller’s major draw card.
How d.p. Transmitter can be applied to close tank?
Identification of control valve parts.
What is the difference between mmwc and mmwg?
Isometric drawings are generated during _________________ phase of a project
