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Measurements for Wireless Sensor Networks
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Measurand
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Transduction Principle
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Physical Properties
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Pressure
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Piezoresistive, Capacitive
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Temperature
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Thermistor, Thermocouple, Thermo-Mechnical
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Motion Properties
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Position
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E-mag, GPS
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Velocity
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Doppler, Hall effect
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Acceleration
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Piezoelectric, Optical fiber
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Presence
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Proximity
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Hall effect, Capacitive, Magnetic, Siesmic, Acoustic, RF
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Distance/Range
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E-mag(sonar,radar,lidar), magnetic
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Motion
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E-mag, IR, Acoustic
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Identification
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Personal features
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Vision, Physio-Psycological
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Personal ID
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Fingerprints, Retinal scan, Voice, Vision motion analysis
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