SKU: SENS-0729
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Force Sensor Resistor 14.7mm Round Pressure Sensor 0.5 Inch

₹761.00 (Inclusive of all taxes)
Out of Stock

This 14.7mm diameter force-sensitive resistor (FSR) provides a variable resistance output proportional to applied force from 100g to 10kg. It is designed for easy integration with microcontroller ADCs on platforms like Arduino and Raspberry Pi for basic force detection and pressure-sensing applications.

Features

  • 0.5-inch (14.7mm) circular active sensing area with a force range of 100g to 10kg.
  • Variable resistance output, decreasing from >1MΩ (no load) as force increases.
  • Ultra-thin 0.45mm profile with a peel-and-stick adhesive backing for simple mounting.
  • Standard 0.1″ pitch pin spacing for direct breadboard or PCB compatibility.
  • Durable construction rated for up to 10 million actuations in typical use.

Out of stock

Description

This force-sensitive resistor operates on the principle of piezoresistivity, where the electrical resistance through a conductive polymer Matrix decreases predictably under mechanical pressure. The sensor provides an analog resistance signal that can be conditioned via a simple voltage divider circuit and read by a microcontroller’s ADC input for relative force measurement.

With an ultra-thin 0.45mm form factor and an integrated adhesive backing, the sensor is designed for embedding into assemblies where space is constrained. It is suited for applications requiring robust, repeatable actuation over millions of cycles, though it is not calibrated for precision weighing. The standard 0.1″ pin spacing ensures straightforward interfacing with development boards and custom circuits.

Key Features

  • Piezoresistive Sensing Element: Delivers a variable resistance output directly proportional to the applied force.
  • Broad Force Range: Capable of detecting forces from a light 100-gram touch up to a substantial 10-kilogram load.
  • Minimal Profile Integration: Ultra-thin 0.45mm thickness allows for seamless integration into tight spaces and wearable devices.
  • Simplified Mounting: Features a peel-and-stick rubber adhesive backing for quick, tool-free installation.
  • Standard Interface: Two-pin header with 0.1" pitch for direct plug-in compatibility with breadboards, perfboards, and standard connectors.
  • High-Cycle Durability: Engineered polymer construction supports reliable operation for up to 10 million actuations.
  • Direct ADC Compatibility: Output easily conditioned through a voltage divider for direct connection to microcontroller analog inputs.

Applications

  • Human-Machine Interface Controls: Integrating into control panels, game controllers, or musical instruments for pressure-sensitive input.
  • Wearable & Biomechanical Sensing: Embedding in insoles, gloves, or grips to monitor pressure distribution and contact force.
  • Robotic Tactile Feedback: Providing basic touch or grip force feedback in robotic end-effectors and grippers.
  • Protective Equipment & Safety Switches: Deploying as impact or presence detection sensors in safety mats or equipment guards.
  • Consumer Product Development: Prototyping force-activated features in appliances, toys, or interactive electronic assemblies.

Technical Specifications

Sensor TypeForce-Sensitive Resistor (FSR)
Sensing Area ShapeCircular
Sensing Area Diameter14.7 mm (0.5 inch)
Force Range (Min)100 grams
Force Range (Max)10 kg
No-Load Resistance>1 MΩ
Thickness0.45 mm
Actuation LifeUp to 10 million cycles
Pin Pitch0.1 inch (2.54 mm)
MountingPeel-and-stick adhesive backing
Overall Length60 mm
Overall Width25 mm
Weight2 grams

Frequently Asked Questions

How do I interface this FSR with an Arduino or other microcontroller?

Connect the FSR in a voltage divider circuit with a fixed resistor (typically 10kΩ) between the sensor and ground. Connect the junction between the FSR and the fixed resistor to an analog input pin on your microcontroller (e.g., Arduino). The ADC will read a voltage that varies with the applied force. Code is required to map this ADC value to a force range.

What is the accuracy and calibration process for this force sensor?

This FSR is designed for relative force detection, not precision measurement. Its response is non-linear, especially at the lower end of its range. For best results, perform a manual calibration by applying known weights across its 100g to 10kg range and recording the corresponding ADC outputs to create a lookup table or calibration curve for your specific application.

Can this sensor be used for continuous weight measurement like a scale?

No, it is not recommended for use as a precision scale. The FSR's piezoresistive response can drift with temperature and time, and its accuracy is not sufficient for commercial weighing. It is best suited for applications detecting the presence of force, relative pressure changes, or threshold-based actuation.

How do I mount the sensor, and what is its operating lifespan?

Use the integrated peel-and-stick adhesive backing for permanent mounting onto clean, dry surfaces. For mechanical mounting, the sensor can be lightly clamped. The polymer sensing element is rated for up to 10 million actuations, making it suitable for high-cycle applications, but avoid Sharp Microelectronics bends or punctures to the active area.

Package Includes

  • 1 x Force Sensor Resistor (0.5" / 14.7mm diameter)

Additional Information

Weight 0.002 kg
Dimensions 6 × 2.5 × 0.045 cm