Industrial Instrumentation — Winter 2018

Explain the following characteristics of a Transducer.

Linearity (ii) Resolution (iii) Sensitivity (iv) Threshold (v) Repeatability (vi) Calibration (vii) Hysteresis.

What is Transducer? Explain factors influencing the choice of transducers.

What is Gauge factor and Piezo resistive effect? Derive the expression for that in terms of passion’s ratio.

Write short note on Hall effect transducer.

Differentiate unbonded and bonded type strain gauge. How is the temperature compensation carried out using strain gauge in a bridge circuit?

Explain the construction and working of LVDT used for measurement of displacement.

Explain construction and working principle of Thermocouple. Also explain Cold junction compensation.

State different methods for torque measurement.Explain any one in detailed.

State different type of Load cell used for force measurement. Explain any one in detail.

Explain construction and working of Piezoelectric pressure transducer.

Write short note on Hot wire anemometer.

Explain how inductive transducer used for Linear measurement and Capacitive transducer used for angular displacement.

Describe with neat sketch the construction and working of Rotameter. State Advantages and Disadvantages of Rotameter.

Write short note on Venturi tube..

Write short technical note on X-Y Recorders.

Explain n-Channel Data Acquisition System with block diagram.

What is sample and hold circuit? Why it is needed? Explain with circuit diagram.