Pololu 0.25 Inch Force Sensing Circular Sensor - Short
This force sensing resistor (FSR) from Interlink Electronics is a passive component that works as a variable force and resistance decreases in response to increased force, making it easy to add a touch interface to your project or create a robot with much more sophisticated tactile senses than is possible with simple switches.
The polymer is thick film (PTF) device is optimized for use in human touch control of electronic devices and can detect an applied force anywhere from a few dozen grams to several kilograms (0.2 N to 20 N) in the active area.
The resistor range is well suited to working directly with the internal attractors of many microcontrollers such as AVRs and PICs. The FSR is sensitive enough to noticeably pick up light and quick finger touches.
0.3″ diameter circular pad is flexible, lightweight (0.1 g) and very it is thin (0.01″) and has a circular active sensing area of 0.25" diameter. The two male pins (called "solder tabs") are 0.1″ apart; This is compatible with most breadboards and perfboards, although the solder tabs are too short to work well with many 0.1 ector connectors.
The Force Sensitive Circular Sensor is not a load cell or strain indicator and Note that it is not suitable for precise force measurements. Although it can be used for high-resolution dynamic measurements, only qualitative results can usually be obtained. Force accuracy varies between 5% and 25% depending on various factors.
Fields of Application
- Pressure-sensitive touch user interface
- Tactile sensor for robot attachments
- Special gloves
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