Answer / monapaul

Also I WANT TO KNOW SOME BASIC CONCEPTS RELATED TO
INSTRUMENTATION in technical field

Answer / ravi prakash

Before knowing the concepts, one should know, what
instrumentation is.
In simple sense, instrumentation is art rather than a
science of taking measurements.
Now you can think of all the posible ways to measure a
physical parameter.

take example of measuring flow rate of any fluid.
the flow of fluid is proportional to the diffrential
pressure created when its flow is restricted, also the flow
is proportional to the amount of heat it can remove from a
hot source, or the change in frequency of ultasonic waves
made to pass in a flow, and also flow is proportional to
the voltage generated across electrodes when placed in a
magnetic field.... and the list goes on.

this was a small example to show that any fundamental can
be somehow related to a physical parameter, search for an
appropriate instrument compling in terms of cost, material
and technical specifications regarding the measureand.

The fundamental aim of instrumentation is to measure the
physical parameter and convert it into appropriate user
friendly form like digital readouts or graphical views.

And the book by B.G Liptak is Bible for instrumentation.

Answer / v.ramakrishna

Please buy B.G.Liptek book volume - 1 and volume - 2 which
covers both measurement and control.

AS Instrumentation is a concept of measurement + Control.

How you measure and how you control the parameters is the
concept of instrumentation.

You can get the books from Mumbai, If you have any source
try to get it.

Answer / jose

14.7 psia = 0 psig
27.7 in H2O = 1 psig

Are Coils of Electromagnetic flowmeter in direct contact with fluid material

4 Answers   TATA,

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as an instrumentation engineer which are the things we have to know / or we must have idea about that....

2 Answers  

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I have transmitter of range -20 to -5 kpa.if it is possible to zero trim with atmospheric pressure,means HP and lp having no pressure...what will get after zero trim and it is the right way.....plz give me reply ....

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hi am durga, i just now completed my eie [2009] , can anyone please guide me what r courses i need to join to enter into core company

6 Answers  

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What is open loop checking and close loop checking

1 Answers   BARC, NTPC,

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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.

0 Answers  

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what is DCS and SCADA?

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I want to measure flow by using DP Tx and range is 0 to 1200 Kg/cm2 ?

2 Answers  

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What is the potential contact / output??

1 Answers   Vasava Engineering Private Limited,

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In a ball valve which require 24v dc supply to operate, whose solenoid valve doesn't have any + or - indication, how can we make wiring connectionto solenoid valve?

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for oil & gas industries which zone is normally preferred? why? give its example?

0 Answers  

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how to use one 4-20mA signal for two indicater or controller & give necessary precaution.

2 Answers  

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