Electronics Measurement and Instruments — Winter 2019

Define: (1) Accuracy (2) Precision (3) Resolution

Explain: (1) Gross errors (2) Random errors.

Describe the classification of standards in detail

Explain the applications and limitations of Wheatstone bridge.

Draw the circuit diagram of Kelvin bridge and derive the equation for unknown resistance.

Draw the circuit diagram of Maxwell’s bridge and derive the equation for unknown Inductance and resistance. What are its advantages and disadvantages?

Draw the circuit diagram of Hay’s bridge and derive the equation for unknown Inductance and resistance. What are its advantages and disadvantages?

Draw the circuit diagram of de-sauty’s bridge and derive the equation for unknown Capatance.

Draw the circuit diagram of Schering’s bridge and derive the equation for unknown Capatance and resistance.

An unbalanced Wheatstone bridge has following details: R1 = 1K,R2 =2.5K,R3 =3.5K,R4 =10K,R G =300Ω, battery E=6V. Ca l c u late the current through the Galvanometer.

A Maxwell bridge is used to measure inductive impedance. The bridge constants are: C1 =0.01µF,R1 =470 kΩ,R2 =5.1 kΩ, R3 =100 kΩ Find the series equivalent of the unknown impedance.

Draw the diagram of digital frequency meter and explain its working.

Find the series equivalent inductance and resistance of hay’s bridge to null with the following bridge arms( clockwise ABCD): Arm AB: R1 =2 kΩ,C1 =1 µF, Arm BC: R3 =1 kΩ, Arm CD: unknown R x and L x Arm DA: R2 =10 kΩ ω= 3000 rad/s

Draw the block diagram of a pulse generator. ((2o)n ly diagram, no description)1

Draw the block diagram of standard signal generator and explain its operation.

Draw the circuit diagram of Wien’s bridge and derive the equation for unknown frequency.

Draw the block diagram of sweep generator. (only diagram, no description).

Draw the block diagram of AF sine and square wave generator and explain its working briefly.

Draw the block diagram of true rms reading volt meter and explain its working in detail. What are its advantages and disadvantages?

Draw the circuit diagram of basic wave analyzer and explain its working briefly.

Draw the block diagram of function generator and explain its operation.

Draw the block diagram of basic CRO and explain the function of each block.

Draw the basic construction of linear variable differential transducer(LVDT) and explain its working briefly.

With diagram explain the working principle of spectrum analyzer.

Draw the block diagram of digital storage oscilloscope and explain its principle of operation in detail.2