Answer / dhankhandhar@ymail.com

We can never generate DC voltage ,we can only change AC to DC ,so no matter you are giving AC or DC input but Addy current will be always AC.

Answer / niraj

We are giving 24V DC to Vibration probe is having driver circuitry which will generate AC signal for eddy current

what is positive displacement meter.

1 Answers   Takreer,

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Troubleshoot to the device level basic process control systems given the Process and Instrumentation Diagram?

2 Answers   Chettinad, HPCL,

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Control valve question what is the meaning of cauge.?what is the use of cauge?

1 Answers  

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what would be the minimum flow rate that we can measure on rotameter..?

0 Answers   TATA,

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how flame detectors sense the flame.

3 Answers  

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What is diff between Ingral orifice and simple orifice?where it use?

3 Answers  

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what is mapping in instrumentation and control engineering

2 Answers  

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In split range control, we will control 2 outputs with time interval. Eg :(with 4-20 ma signal, for 4-12 ma we are operating one control instrument like valve & for 12-20ma we are operating other control instrumet (other valve). If we get a signal of 15ma to first instrument (Valve 1), what will happened to the first valve, and if we get signal above 20 ma to 2 valve what will happened ?

3 Answers  

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how ranges is decided for drum level or dearator level,in my pplant i have seen for boiler drum range is -1000 to 1000mmwc, while for dearator -2000 to 0 mmwc ,why they decided to take this range ?

2 Answers  

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field bus transmitter calibration procedure tell me

0 Answers   BAP,

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Wht should be the ratio of natural frequency (Fn) to wake frequency (Fw) and wht if goes above the rato limit?

2 Answers  

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How to get Cv of control valve having following parameter ,i.e inlet pressure 4.5kg/cm2 outlet pressure 1 kg/cm2 specific gravity 0.808

3 Answers  

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