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INTRODUCTION
TYPES OF SENSORS
FAILURE MODES
WHY IT IS IMPORTANT
ADVANTAGES AND DISADVANTAGES
LIMITATIONS ON SENSORS
CONCLUSION
INTRODUCTION
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A sensor (also called detectors) is a device that measures a measurable
attribute and converts it into a signal which can be read by an observer
or by an instrument.
• The need for new types of sensors is more critical than ever. This is due
to the emergence of increasingly complex technologies, health and
security concerns of increasing world population, and the emergence of
terrorist activities, among other factors. Sensors are the most important
component in any system and engineers in any field need to understand
the fundamentals of how these components work, how to select them
properly and how to integrate them into an overall system Depending
on their application, the design, fabrication, testing, and use of sensors,
all require various kinds of both technical and nontechnical expertise.
With this in mind, "Introduction to Sensors" examines the theoretical
foundations and practical applications of various types of sensors.
TYPES OF SENSORS
Understanding Sensors - An Analogy
Principally, any material or device that has the capability to
detect an abstract, non-tangible or physical property, is a
sensor. We are surrounded by sensors and many processes
successfully running around us are measured and detected
by sensors.
In fact, the human body, for its proper functioning,
depends on the five sensory organs – eye, ear, nose, tongue,
and skin. The functioning of the human senses (sensory
organs) is clearly defined.