Flex Sensor 2.2″

Original price was: 1,300.00৳ .Current price is: 1,199.00৳ .

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Flex Sensor 2.2″ Inch Bend Flex Sensor For Robotic Hand Electronic Gloves Flex2.2 Flex Sensor Pressure Sensor Resistive Flex Sensor Robotic Arm Power Glove Measuring Bending DIY

flex sensor or bend sensor is a sensor that measures the amount of deflection or bending. Usually, the sensor is stuck to the surface, and the resistance of the sensor element is varied by bending the surface. Since the resistance is directly proportional to the amount of bend it is used as a goniometer, and often called a flexible potentiometer.

This Sensor 2.2 inch in Pakistan is a simple flex sensor 2.2″ in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol – they claim these sensors were used in the original Nintendo Power Glove. I love the Nintendo Power Glove. The resistance of the bend sensor changes when the metal pads are on the outside of the bend (the text on inside of end) Connector is 0.1″ spaced and breadboard friendly. Check the datasheet for full specifications.

Note: Please refrain from flexing or straining this sensor at the base. The usable range of the sensor can be flexed without a problem, but care should be taken to minimize flexing outside of the usable range. For best results, securely mount the base and bottom portion and only allow the actual flex sensor to flex.


  • Operating  voltage of FLEX SENSOR: 0-5V
  • Can operate on LOW voltages
  • Power rating : 0.5Watt (continuous), 1 Watt (peak)
  • Life: 1 million
  • Operating temperature: -45ºC to +80ºC
  • Flat Resistance: 25K Ω
  • Resistance Tolerance: ±30%
  • Bend Resistance Range: 45K to 125K Ohms(depending on bend)


  • Length (all sensor): 73.66 mm (3″)
  • Length (active part): 55.37 mm (2.2″)
  • Width: 6.41 mm
  • Thickness: 0.48 mm
  • Weight: 0.27 gr


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

Where to Use FLEX SENSOR

For understanding the use of FLEX SENSOR consider:

Case1: Where you want to check whether the surface of a device or thing is leveled or not. Say you want a device to check whether a window or door is open or not. At that time a Flex sensor could be used. The sensor could be fixed at door edge and when the door opens the Flex sensor gets flexed. With the sensor being flexed its parameters changes which could be designed to provide an alert.

Case2: Where you want to measure the FLEX or BENT or ANGLE change of any instrument or device. The FLEX SENSOR internal resistance changes almost linearly with its flex angle. So by sticking the sensor to the instrument, we can have the flex angle in electrical parameter of resistance.


As mentioned earlier, FLEX SENSOR is basically a VARIABLE RESISTOR whose terminal resistance increases when the sensor is bent. So this sensor resistance increases depends on surface linearity. So it is usually used to sense the changes in linearity.

Flex Sensor Working

As shown in the above figure, when the surface of FLEX SENSOR is completely linear it will be having its nominal resistance. When it is bent 45º angle the FLEX SENSOR resistance increases to twice as before. And when the bent is 90º the resistance could go as high as four times the nominal resistance. So the resistance across the terminals rises linearly with bent angle. So in a sense the FLEX sensor converts flex angle to RESISTANCE parameter.

For convenience we convert this RESISTANCE parameter to VOLTAGE parameter. For that we are going to use VOLTAGE DIVIDER circuit. A typical VOLTAGE DIVIDER circuit is shown below.

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