Electronics Measurement and Instruments — Summer 2023

Define: (1) Resolution (2) Linearity and (3) Sensitivity.

The expected value of the voltage across a resistor is 80 V. However, the measurement gives a value of 79 V. Calculate (i) absolute error (ii) % error (iii) relative accuracy and (iv) % of accuracy.

Describe the working of a digital frequency meter with block diagram.

What are the limitations of Wheatstone bridge and how can it eliminated?

Explain basic principle of oscillation .What is Barkhausen Criterion?

Draw Wien’s Bridge diagram and derive equation for the measurement of unknown frequency.

An ac bridge with 1 kHz frequency has the following constants: Arm AB – capacitor of 0.5 µF in parallel with 1kΩ resistance, Arm DA – resistance of kΩ, Arm BC – capacitor of 0.5 µF, Arm CD – unknown capacitor and resistor in series. Derive the balance condition and Also determine the unknown resistance, capacitance and dissipation factor.

Draw schematic block diagram of function generator.

Explain time period measurement circuit in detail.

Describe digital storage oscilloscope with schematic block diagram and state its Applications.

Describe the basic principle of CRT.

What are the errors in measurements with frequency counters? Explain any one of them.

Explain True RMS Reading Voltmeter.

Write short note on piezoelectric transducer.

Which are the parameters for selecting transducers?

Explain harmonic distortion analyzer.

Explain operation of Ito Pconvertor in detail.

Explain digital phase measurement technique.

Describe the construction and working of LVDT. State advantages and disadvantages of it.

What are the objectives of DAS?

Explain the working of a Single channel DAS with block diagram.

Describe the Principle of Hall effect and measure the displacement and current using Hall sensor.

Explain the concept of Earth Ground.

Describe the Sample and Hold circuit operation.

Explain the working of a Multi channel DAS with block diagram.2