Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech Automation-And-Robotics 7 and 8th Sem BTAR 701 Sensors And Signal Processing 2020 March Previous Question Paper
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Automation & Robotics) (2012 & Onwards)
(Sem.?7)
SENSORS AND SIGNAL PROCESSING
Subject Code : BTAR-701
M.Code : 71806
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt ANY FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt ANY TWO questions.
SECTION-A
1. Answer Briefly :
a) How smart sensors are useful in medical diagnosis?
b) What is a smart sensor?
c) Considering Z-transformation of x(n) as X(z), what is Z-transform of x(?n)?
d) What do you mean by finite precision effect in digital filters?
e) Write mathematical expression for Hamming window.
f) What do you mean by region of convergence in Z-transformation?
g) What is difference between data acquisition system and data logger?
h) What is most critical part in design of smart sensor?
i) What is meant by proportional band in case of proportional controller?
j) What are drawbacks of Zeigler-Nichol method of PID controller tuning?
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1 | M-71806 (S2)-204
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Automation & Robotics) (2012 & Onwards)
(Sem.?7)
SENSORS AND SIGNAL PROCESSING
Subject Code : BTAR-701
M.Code : 71806
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt ANY FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt ANY TWO questions.
SECTION-A
1. Answer Briefly :
a) How smart sensors are useful in medical diagnosis?
b) What is a smart sensor?
c) Considering Z-transformation of x(n) as X(z), what is Z-transform of x(?n)?
d) What do you mean by finite precision effect in digital filters?
e) Write mathematical expression for Hamming window.
f) What do you mean by region of convergence in Z-transformation?
g) What is difference between data acquisition system and data logger?
h) What is most critical part in design of smart sensor?
i) What is meant by proportional band in case of proportional controller?
j) What are drawbacks of Zeigler-Nichol method of PID controller tuning?
2 | M-71806 (S2)-204
SECTION-B
2. Discuss application of MEMS in environmental monitoring.
3. Draw a block diagram for multichannel data acquisition system and discuss each block.
4. Consider a discrete time signal given as follows :
x (n) = a
n
u(?n ? 1)
Determine its Z-transform.
5. Differentiate between fixed point and floating point representations in digital filters.
6. Discuss process control system in a chemical process industry.
SECTION-C
7. Discuss Ziegler-Nichol ultimate gain method for controller tuning. Assume that the
Ziegler- Nichols ultimate gain method is used to tune a PID controller for a plant with
model
? ?
? ?
2
2
2 1
s
o
e
G s
s
?
?
?
Determine the parameters of the PID controller.
8. Given the system function
? ?
1
1 s ?
for a first order analogue Butterworth low-pass filter
with cut-off frequency 1 radian/second, use the bilinear transformation to design a second
order IIR discrete time band-pass filter whose 3 dB cut-off frequencies are at 1467 Hz
and 2500 Hz when the sampling frequency is 10 kHz.
9. What is importance of sample and hold circuit with analog to digital signal converter?
Discuss sample and hold using an operational amplifier with the help of a circuit
diagram.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 16 March 2020