Nội dung Text: Lecture Sensors and analytical devices: Introduction - Nguyễn Công Phương
Nguyễn Công Phương
Sensors and Analytical Devices
Contents
A. Introduction
B. Sensors Characteristics
C. Some Basic Measurement Methods
D. Measurement Systems
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References
[1] K. Kalantar – zadeh. Sensors – An
Introductory Course. Springer, 2033.
[2] A. S. Morris, R. Langari. Measurement and
Instrumentation – Theory and Application.
Elsevier, 2012.
[3] D. Placko. Fundamentals of Instrumentation
and Measurement. ISTE, 2007.
[4] sites.google.com/site/ncpdhbkhn
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Introduction (2)
http://www.babylon.vn/c300
/can-nhon-hoa-100-kg-nhs-
100-12381.html
Sensitive
interface
Measurand Transducer
To data acquisition
system
Sensor
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Introduction (3)
Sensors qualities:
• Sensitive to their target measurands, &
insensitive to any other input quantities.
• Reliable, accurate, stable, low cost.
• Not affect the measurand.
• Environmentally friendly.
• Power consumption.
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Introduction (4)
Type of energy Occurence
Gravitational Gravitational attraction
Mechanical Motion, displacement, mechanical forces,
etc.
Thermal Temperature
Electromagnetic Electric charge, electric current,
magnetism, electromagnetic wave energy
Chemical Energy released or absorbed during
chemical reactions
Nuclear Binding energy between nuclei – binds
the subatomic particles of a matter
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Introduction (5)
Gravitational Gravitational
Input
Mechanical Mechanical
Thermal Thermal
Transduction
Electromagnetic process Electromagnetic
Nuclear Nuclear
Output
Chemical Chemical
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Intrduction (6)
Sensors applications:
• Health & biomedical.
• Defense & military industries.
• Industrial applications: aerospace, agriculture,
nuclear, automation, etc.
• Environment surveillance & climate
parameters measurements.
• Consumer products: electronic system &
household appliances.
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Introduction (7)
Gear position
http://www.suzuki.com.vn/xemay
Speed
Fuel level
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