Sensor De Flexion

Special Edition Length

Features
- Angle Displacement Measurement - Bends and Flexes physically with motion device - Possible Uses - Robotics - Gaming (Virtual Motion) - Medical Devices - ComputerPeripherals - Musical Instruments - Physical Therapy - Simple Construction - Low Profile

Mechanical Specifications
-Life Cycle: >1 million -Height: 0.43mm (0.017") -Temperature Range: -35°C to+80°C

Electrical Specifications
-Flat Resistance: 25K Ohms -Resistance Tolerance: ±30% -Bend Resistance Range: 45K to 125K Ohms (depending on bend radius) -Power Rating : 0.50 Watts continuous. 1Watt Peak

Dimensional Diagram - Stock Flex Sensor
PART LENGTH 73.66 [2.900] ACTIVE LENGTH 55.37 [2.180]

6.35 [0.250]

How to Order - Stock Flex Sensor
FS Series
FS = Flex Sensor

L Model
L= Linear

0055 Active Length
0055 = 55.37mm

253 Resistance
253 = 25K Ohms

ST Connectors
ST = Solder Tab

How It Works
Flat (nominal resistance) 45˚ Bend (increased resistance) 90˚ Bend(resistance increased further)

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Schematics

Following are notes from the ITP Flex Sensor Workshop "The impedance buffer in the [BasicFlex Sensor Circuit] (above) is a single sided operational amplifier, used with these sensors because the low bias current of the op amp reduces errer due to source impedance of the flex sensor asvoltage divider. Suggested op amps are the LM358 or LM324." "You can also test your flex sensor using the simplest circut, and skip the op amp." "Adjustable Buffer - a potentiometer can be added to thecircuit to adjust the sensitivity range."

"Variable Deflection Threshold Switch - an op amp is used and outputs either high or low depending on the voltage of the inverting input. In this way you canuse the flex sensor as a switch without going through a microcontroller."

"Resistance to Voltage Converter - use the sensor as the input of a resistance to voltage converter using a dual sided...