IFD:Sensors

Sensors for Interaction

List of Sensors suitable for Interaction, categorized by different aspects:

Interface:

Resistance, voltage, current, capacitance, frequency, digital protocol, pwm, switch, open collector, logic level

Physical effect:

Pressure, Tension, Voltage, Current, Magnetism, Bend / flex, position, length, distance, presence, orientation, light, conductance (resistance), sound pressure, air pressure, fluid pressure, ultrasound, angle, radii (curvature)

Use as interface

Difficult to classify, thus incomplete:

location (2d, 3d), eye position, movement, forces and deformation, presence, ambient measurements. switches and buttons. incremental input (rotary or linear sliders, etc.)

Common Examples

writing: location + pressure mouse: location + digital pressure + wheel

Sensor	Physical	Electrical
Bend and flex stress or curvature	Bending	Resistive
Reed switch	Magnetism	Switch
Photo transistor	Light, broad spectrum	Transistor, current
Photo diode	Light, broad spectrum	Diode, reverse current
LDR (Light dependant resistor)	Light, broad spectrum	Resistive
PIR: passive infrared movement detector	Movement of differently warm objects	Open collector / Voltage / Switch
Pyroelectric Sensor	Changes in Temperature	Transistor, current
FSR Force sensing Resistor	Pressure	Resistive
NTC	Temperature	Resistance
PTC	Temperature	Resistance
Temperature Sensor, integrated	Temperature	Voltage
Hall Sensor	Magnetic fields	various.
Electret microphone	Pressure (sound) in air.	Voltage (integrated amplifier)
Piezo disk or transducer	deformation, sound in solids and fluids,	Voltage
Strain gauge	Pressure and tension	Resistance
Peltier element	Temperature difference bewtween 2 surfaces	Voltage + Current
Vibration Sensor (piezo)	Acceleration (by inertia)	Voltage