Resistive Thin Film Pressure Sensor (FSR)
= Flexible Force Sensitive Resistor for Pressure Detection =
This resistive thin film pressure sensor is a flexible force sensitive resistor (FSR) that changes its resistance in response to applied force . It is designed for precise pressure detection in applications ranging from DIY electronics to medical and wearable devices .
High Sensitivity - Detects subtle pressure changes with fast response time of <10ms
Flexible Design Ultrathin, durable, and adaptable for curved surfaces
Operating principle is based on piezoresistive effect — resistance decreases as pressure increases
Use a voltage divider circuit to convert resistance change into a measurable voltage signal
Ensure force is applied to the designated sensing area for accurate readings
= Technical Specifications =
| Parameter | Value |
|---|
| Force Range | 20g to 10kg depending on model |
| Response Time | <10ms |
| Recovery Time | <15ms |
| Thickness | 0.25mm to 0.4mm |
| Durability | Over 1 million actuations |
| Operating Temperature | -40°C to +85°C |
= Key Features =
Piezoresistive Sensing - Resistance decreases with applied force
Flexible and UltraThin Conforms to various surfaces for versatile mounting
Waterproof Option - Suitable for humid environments
RoHS Compliant - Environmentally friendly construction
Long Operational Life - More than 1 million cycles
== Applications ==
- Smart home and consumer electronics
- Medical electronics and wearable devices
- Interactive touch and pressure sensing interfaces
- Robotics and industrial force monitoring
- Automotive and transportation systems
Versatile Integration - Simple interface with microcontrollers via analog or digital inputs
Durable Construction Highly sensitive and reliable over longterm use
√ Connects easily with Arduinos and development boards using simple resistor divider
√ Compatible with 3.3V typical test voltage
√ Responds to both light and heavy force ranges
= Troubleshooting =
No resistance change:
- Check force is applied to the active sensing area
- Ensure correct voltage divider circuit is used
- Verify connections and wiring
Inconsistent readings:
- Clean the sensor surface
- Test with known weights for calibration
- Avoid applying force outside specified range