Download - Introduction to sensors
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INTRODUCTION TOSENSORS
PRESENTEDBY
CH.NAVEEN KUMAR
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The following topics will be discussed:
What are sensors?
types of sensors
Types of micro-sensors
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A sensor is a device that receives and responds to a signal
the signal could be heat,light,motion or chemical
a sensor coverts a signal into an analog or digital representation of the output
sensors detect and/or measure many different conditions
What are some sensors that you have used?
INTRODUCTION:
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Humans are equipped with 5 different types of sensors
Detects light Detects certain chemicals
Detects pressure & temperature
Detects sound
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Basic Concepts Of Sensors:
Detect the presence of energy
Detects change in or the transfer of energy
Detect by receiving a signal than responding to that signal
Convert a signal into a readable output
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Thermal sensors:
thermometer
Thermocouple gauge
Resistance temperature detectors(RTDs)
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Mechanical sensors:
pressure sensor
Barometer
altimeter
liquid flow sensor
gas flow
accelerometer
aneroid barometer
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Electrical sensors:
ohmmeter galvanometer and
ammeter voltmeter watt-hour meter
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Chemical sensors:
oxygen sensor
carbon-dioxide sensor
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Optical sensors:
photo detectors
proximity detectors
infra-red sensors
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Other types of sensors:
acoustic wave sensor
seismometers
motion sensors
speedometers
geiger counters
biological sensors
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Summary :
a sensor is a device that receives and responds to a signal
this signal must be produced by some type of energy,such as heat,light,motion or chemical
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