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Commonly Measured Quantities
Stimulus Quantity
Acoustic Wave (amplitude, phase, polarization), spectrum, Wave
Velocity
Biological & Chemical Fluid Concentrations (Gas or Liquid)
secondary
analog
real primary transducer usable
transducer
signal
world values
sensor
SENSOR
• Mengubah besaran fisis menjadi listrik
TRANSDUSER
• Mengubah dari satu bentuk energi ke bentuk
energi lainnya
SENSOR DAN TRANSDUSER
Stress:
Deformation Sensor Resistance
Stress:
Deformation Transduser Electric current
SIFAT SENSOR
Passive (e.g. change in resistance)
Active (output is a voltage or current level)
JENIS SENSOR
Analog (e.g. thermocouples)
Digital (e.g. digital tachometer)
7
Sensor Systems
input sensor data
signal analog/digital network
(measurand) display
microcontroller
sensor signal processing
communication
8
SENSOR DAN AKTUATOR
real sensor
intelligent
world feedback
system
actuator
10
input (kuantitas fisik)
SENSOR dan output (listrik)
Physical Electrical
parameter Output
input (listrik) dan output
ACTUATOR
(kuantitas fisik)
Electrical Physical
Input Output
12
Physical Electrical
SENSOR
parameter Output
Sensor
Actuator
SENSOR DAN AKTUATOR
Quantity being Input Device Output Device
Measured (Sensor) (Actuator)