Gate Syllabus for Instrumentation Engineering
ENGINEERING MATHEMATICS
Linear Algebra: Matrix Algebra, Systems of linear equations, Eigen values and
eigen vectors.
Calculus: Mean value theorems, Theorems of integral calculus, Evaluation of
definite and improper integrals, Partial Derivatives, Maxima and minima,
Multiple integrals, Fourier series. Vector identities, Directional derivatives,
Line, Surface and Volume integrals, Stokes, Gauss and Green’s theorems.
Differential equations: First order equation (linear and nonlinear), Higher
order linear differential equations with constant coefficients, Method of
variation of parameters, Cauchy’s and Euler’s equations, Initial and boundary
value problems, Partial Differential Equations and variable separable method.
Complex variables: Analytic functions, Cauchy’s integral theorem and integral
formula, Taylor’s and Laurent’ series, Residue theorem, solution integrals.
Probability and Statistics: Sampling theorems, Conditional probability, Mean,
median, mode and standard deviation, Random variables, Discrete and continuous
distributions, Poisson, Normal and Binomial distribution, Correlation and
regression analysis.
Numerical Methods: Solutions of non-linear algebraic equations, single and
multi-step methods for differential equations.
Transform Theory: Fourier transform, Laplace transform, Z-transform.
INSTRUMENTATION ENGINEERING
Basics of Circuits and Measurement Systems: Kirchoff’s laws, mesh and nodal
Analysis. Circuit theorems. One-port and two-port Network Functions. Static and
dynamic characteristics of Measurement Systems. Error and uncertainty analysis.
Statistical analysis of data and curve fitting.
Transducers, Mechanical Measurement and Industrial Instrumentation:
Resistive, Capacitive, Inductive and piezoelectric transducers and their signal
conditioning. Measurement of displacement, velocity and acceleration
(translational and rotational), force, torque, vibration and shock. Measurement
of pressure, flow, temperature and liquid level. Measurement of pH,
conductivity, viscosity and humidity.
Analog Electronics: Characteristics of diode, BJT, JFET and MOSFET. Diode
circuits. Transistors at low and high frequencies, Amplifiers, single and
multi-stage. Feedback amplifiers. Operational amplifiers, characteristics and
circuit configurations. Instrumentation amplifier. Precision rectifier. V-to-I
and I-to-V converter. Op-Amp based active filters. Oscillators and signal
generators.
Digital Electronics: Combinational logic circuits, minimization of Boolean
functions. IC families, TTL, MOS and CMOS. Arithmetic circuits. Comparators,
Schmitt trigger, timers and mono-stable multi-vibrator. Sequential circuits,
flip-flops, counters, shift registers. Multiplexer, S/H circuit.
Analog-to-Digital and Digital-to-Analog converters. Basics of number system.
Microprocessor applications, memory and input-output interfacing.
Microcontrollers.
Signals, Systems and Communications: Periodic and aperiodic signals. Impulse
response, transfer function and frequency response of first- and second order
systems. Convolution, correlation and characteristics of linear time invariant
systems. Discrete time system, impulse and frequency response. Pulse transfer
function. IIR and FIR filters. Amplitude and frequency modulation and
demodulation. Sampling theorem, pulse code modulation. Frequency and time
division multiplexing. Amplitude shift keying, frequency shift keying and pulse
shift keying for digital modulation.
Electrical and Electronic Measurements: Bridges and potentiometers,
measurement of R,L and C. Measurements of voltage, current, power, power factor
and energy. A.C & D.C current probes. Extension of instrument ranges. Q-meter
and waveform analyzer. Digital voltmeter and multi-meter. Time, phase and
frequency measurements. Cathode ray oscilloscope. Serial and parallel
communication. Shielding and grounding.
Control Systems and Process Control: Feedback principles. Signal flow graphs.
Transient Response, steady-state-errors. Routh and Nyquist criteria. Bode plot,
root loci. Time delay systems. Phase and gain margin. State space representation
of systems. Mechanical, hydraulic and pneumatic system components. Synchro pair,
servo and step motors. On-off, cascade, P, P-I, P-I-D, feed forward and
derivative controller, Fuzzy controllers.
Analytical, Optical and Biomedical Instrumentation: Mass spectrometry. UV,
visible and IR spectrometry. X-ray and nuclear radiation measurements. Optical
sources and detectors, LED, laser, Photo-diode, photo-resistor and their
characteristics. Interferometers, applications in metrology. Basics of fiber
optics. Biomedical instruments, EEG, ECG and EMG. Clinical measurements.
Ultrasonic transducers and Ultrasonography. Principles of Computer Assisted
Tomography.
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