what is piezo electric transducer?its principle?

2 Answers  

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why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

0 Answers   Visa Steel,

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Anybody can tell me  how to convert mmHg2o /psi to scfm  please give me formula of conversion

0 Answers   Samsung,

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To calculate temperature, why we multiply 25 with mV?

2 Answers  

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what is the difference between RS 232,RS 485,RS 422, how they different from each other

15 Answers   TCS,

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How to connect PLC to DCS ?

2 Answers   Alkyl Amines,

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how to calibrate flow transmitter

1 Answers   Samsung,

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what is the difference betwwen the 2wire level transmitter and 4wire level transmitter??and their applications also??

2 Answers  

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What is scale factor of proximitor & unit of the viabration.

2 Answers   Sabic,

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What are the types of control valves available

0 Answers   CCIE,

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how to check control valve was passing?how to check online?

3 Answers  

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what is linerity and non-linearity?

2 Answers  

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