Chip Quik, NANOCOMP-SQR-150X150, Polymer Nanocomposite Force Sensing Material, 150x150mm Square, 0.4mm Thick
Features:
- Medical Grade Polymer with Carbon-Based Nanoparticles
- Homogeneously electrically conductive
- When this polymer is compressed, the material's electrical conductivity changes
- Using this material in combination with one of the SEN0001 to SEN0030 contact electrode boards, the resistance of the material (which decreases as the material is compressed) can be measured using many different circuits, such as a voltage divider, a buffered voltage divider, or a current-to-voltage converter.
Recommended Circuit Wiring
In combination with a compatible SEN0001 to SEN0030 electrode board. Voltage divider: Electrode with force sensing material on it wired as the top resistor connected to Vcc (for example 3.3V or 5V), and the bottom resistor is a pull-down resistor of 10k ohms to 100k ohms. When the material is uncompressed, its resistance is in the megaohms range. When compressed, its resistance decreases exponentially to the kiloohms range. The circuit node voltage between the resistors can be measured by any microcontroller, using a digital input for simple press detection, or with an analog input using an internal ADC to measure analog voltage and calculate resistance, and with calibration applied force.
Care and Cleaning
NANOCOMP force-sensing material is flexible and washable.
