typical controller system • sensors • acquisition system (Doepfer box,) • mapping software (Max) • Output (Reason)

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Transcript typical controller system • sensors • acquisition system (Doepfer box,) • mapping software (Max) • Output (Reason)

typical controller
system
• sensors
• acquisition system (Doepfer box,)
• mapping software (Max)
• Output (Reason)
useful resources
• Fraden, A Handbook of Modern
Sensors
• MSI piezo manual
• sensorwiki.org
• Datasheets for components
Parts sources
• Digi-Key catalog
• Sparkfun.com
• Mouser catalog
• Mcmaster-Carr catalog
• Acroname Robotics
what to sense?
• position, velocity, acceleration, rotation
• temperature, light, sound
• pressure, torque, bending
• ON/OFF, constant or toggle
Switches
• discrete output
• Toggle, normally
on, OR normally off
• can provide visual
and tactile feedback
Potentiometers
• common
+Vref
Vout
types:
linear
taper,
audio taper
(log)
• rotary,
GND
linear,
multiturn
Other variable
resistors:
R1
Variable resistor
V output
R2
Vout = Vref R2/(R1+R2)
If sensor range is 10k-35kΩ, and
R2=20kΩthen Vout range is .66Vref =>
.36Vref
• Bend Sensor
resistance increases when bent
• FSR
• (Force-Sensing Resistor)
• resistance drops when pressed
accelerometers
• inclination, acceleration
Typical data sheet for accelerometer
• Specs & pricing table for
accelerometers
IR distance sensors
Sharp GP2D12
(AKA the toilet sensor)
Devantech SRF04 Ranger
Ultrasonic distance sensor
• pulse length
proportional to distance
Hall effect
Magnetic field sensors
Allegro 1321 linear
amplifier in chip!
Piezoelectric
materials
• PZT
• PVDF
Sensitive to
vibration.
Excellent drum
triggers, contact
microphones.