SKU: SENS-0726
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Spectra Symbol Flex Sensor-FS-L-055-253-MP 80mm Male Pins Connector

₹849.00 (Inclusive of all taxes)
Out of Stock

The Spectra Symbol FS-L-055-253-MP is a 2.2″ flexible bend sensor with a 10KΩ variable resistance output, ideal for angle and displacement measurement in robotics, medical devices, and interactive electronics. Its 80mm length with male pin connector is breadboard-friendly for direct integration with Arduino, Raspberry Pi, and other 3.3V/5V microcontrollers.

Features

  • 80mm (2.2″) active flex length with 0.1″ spaced male pin connector for direct breadboard/protoboard use.
  • Variable resistance output: 10KΩ nominal flat resistance (±30%) increasing with bend angle.
  • Robust >1 million bend cycle life rating for long-term reliability in motion-sensing applications.
  • Ultra-thin 0.43mm profile for seamless integration into wearable devices and flexible assemblies.
  • 0.5W continuous power rating (1W peak) for stable operation in low-power embedded systems.

Out of stock

Description

The Spectra Symbol Flex Sensor operates on a simple resistive principle. A conductive ink pattern is printed on a flexible polymer substrate; as the sensor bends, the conductive path elongates and narrows, causing a measurable increase in electrical resistance proportional to the bend radius. This analog resistance change can be read via a voltage divider circuit connected to any microcontroller’s ADC input.

Designed for durability, the sensor withstands over one million flex cycles, making it suitable for repetitive motion tracking. Its ultra-thin 0.43mm construction and sensitive 80mm active sensing area allow for precise detection of angular displacement, while the rigid base with integrated male pins protects the electrical connections and provides a secure mounting point. Care must be taken to bend only the active sensing area to prevent damage.

Key Features

  • Precision Bend Sensing: Provides a linear, analog resistance output directly correlated to the degree of bend for accurate angle measurement.
  • High-Cycle Durability: Engineered for a mechanical life exceeding 1 million bends, ensuring reliability in dynamic applications.
  • Ultra-Thin Form Factor: At just 0.43mm thick, the sensor integrates invisibly into gloves, joints, and flexible surfaces.
  • Breadboard-Compatible Interface: Features standard 0.1" spaced male pins for immediate prototyping without soldering.
  • Robust Power Handling: Rated for 0.5W continuous and 1W peak power dissipation for stable signal conditioning.
  • Optimized Performance-to-Cost Ratio: Delivers laboratory-grade flex sensing in a compact, high-value package for R&D and product development.

Applications

  • Robotic Joint & Gripper Feedback: Monitor finger articulation in robotic hands or joint angles in robotic arms for precise force control.
  • Wearable Medical & Rehabilitation Devices: Track range of motion in physical therapy gloves or measure limb flexion in orthotic devices.
  • Gesture Control Interfaces: Integrate into data gloves for VR/AR systems, musical instrument controllers, or advanced computer peripherals.
  • Product Usability Testing: Quantify bend and flex in consumer products, ergonomic tools, or flexible electronic assemblies.
  • Interactive Art & Installations: Create responsive surfaces and sculptures that react to touch, movement, or deformation.

Technical Specifications

Manufacturer Part NumberFS-L-055-253-MP
BrandSpectra Symbol
Sensor TypeFlex / Bend Sensor
Active Flex Length80 mm (2.2")
Total LengthApprox. 8 cm (3.5")
Flat Resistance10 kΩ ±30%
Resistance ChangeIncreases with bend angle
Power Rating (Continuous)0.5 Watts
Power Rating (Peak)1 Watt
Mechanical Life>1,000,000 bend cycles
Thickness (Height)0.43 mm (0.017")
Connector TypeMale Pins, 0.1" spacing
Output SignalAnalog Resistance

Frequently Asked Questions

How do I interface this flex sensor with an Arduino or Raspberry Pi?

Connect the flex sensor in a voltage divider circuit with a fixed resistor (e.g., 10KΩ). Connect the junction between the sensor and resistor to an analog input pin (ADC) on your microcontroller. As the sensor bends and its resistance increases, the voltage at the ADC pin will change proportionally, allowing you to calculate the bend angle.

What is the operating voltage range for this sensor?

The sensor itself is a passive resistor with no inherent voltage requirement. The system voltage is determined by your measurement circuit. Typical operation uses 3.3V or 5V from the microcontroller's power rail in the voltage divider. Ensure the power dissipation does not exceed the 0.5W continuous rating; for a 10KΩ resistance, this translates to a maximum safe voltage of approximately √(0.5W * 10000Ω) ≈ 70V, though practical use is with 3.3V or 5V.

Can I bend the entire sensor, including the base with the pins?

No. The rigid base section containing the male pins is not designed to be flexed and is sensitive to bending. Repeated bending at the base can damage the internal connections. Only the active 80mm (2.2") flexible portion of the sensor should be subjected to bending during operation.

How do I calibrate the sensor for accurate angle measurement?

Calibration involves mapping the ADC readings to physical bend angles. Secure the sensor flat (0°) and record the ADC value. Then, bend it to known angles (e.g., 45°, 90°) using a jig and record the corresponding ADC values. Use these data points to create a lookup table or linear/non-linear regression model in your code to convert future ADC readings into angle estimates.

What is the difference between flat resistance and bent resistance?

Flat resistance (10KΩ ±30%) is the nominal resistance when the sensor is completely straight. When bent, the conductive path is strained, increasing the resistance. The resistance change is not linear across the entire bend range but is generally monotonic—greater bend angles produce higher resistance values up to a maximum, which can be several times the flat resistance.

Package Includes

  • 1 x Spectra Symbol Flex Sensor (FS-L-055-253-MP) with 80mm Male Pins Connector

Additional Information

Weight 0.02 kg