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Department of Collegiate and Technical EducationSession 1 of 8 on
Unit-2Subject-EM&I Semester-3rd Sub Code:15E34CT
Topic Name: TransducersBy:Mrs Mukthambika.S.M
Lecturer E & C
117-GPT, Raichur
Email: [email protected]
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TRANSDUCER Non sensor electrical signal
Electrical
quantity response
Transducer elements in cascade
➢ A sensor is defined as an element which senses the condition , state or value of the process variable & produce an output which reflects this condition state or value. Or it is defined as a device that produces a measurable response to the change in a physical condition.
Sensing element
Transduction element
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Transducers
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Necessity of electrical transducers
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According to Transduction principle
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MCQ,S
1)How many types of transducers are there.
a)2 b)4 c)6 d)8
2)mechanical transducers sense _______.
a)electrical changes b)physical changes c)chemical changes
d)mechanical changes
3)Electrical transducers generate _________
a)biological signals
b)chemical signals
c)physical signals
d)electrical signals
4)Electrical signals are easy to amplify.
a)True
b)False
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6)electrical transducers are________.
a)small & non-portable
b)large & non-portable
c)small & compact
d)large & portable
ANSWERS:
1. a
2. b
3. d
4. a
5. b
6. c
5)the power needs of electrical transducers is ________.
a)maximum
b)minimum
c)zero
d)infinite