Products for USB Sensing and Control
The Interlink Force Sensing Resistor has an active sensing area of 0.2” (5mm) to sense applied force.
Force Sensing Resistors (FSRs) are very thin, robust, polymer thick film (PTF) devices that decrease in resistance when increased pressure is applied to the surface of the sensor. FSRs are not a load cell or strain gauge devices though they have many similar properties.
They are more appropriate for qualitative rather than precision measurements.
You can use a voltage divider to connect this sensor to your InterfaceKit or Hub. See the Connection & Compatibility tab for more details.
This force-sensitive resistor works best when connected to a voltage divider so you can customize the minimum and maximum voltage drop produced by the sensor with the expected minimum and maximum amount of pressure on the sensor. For more details on how to configure the voltage divider, take a look at the User Guide for the divider you choose.
| Product | |
|---|---|
| Part Number | Price |
 Voltage Divider
|
$7.00 |
| Sensor Properties | |
|---|---|
| Sensor Type | Force Sensitive Resistor |
| Controlled By | Voltage Divider |
| Force Min | 1 N |
| Force Max | 20 N |
| Pressure Min | 10.3 kPa |
| Pressure Max | 1 MPa |
| Repeatability Error Max | ± 2 % |
| Hysteresis Max | 10 % |
| Long-Term Drift Max | 5 % |
| Response Time Max | 3 μs |
| Temperature Sensitivity Max | 0.15 % per °C |
| Physical Properties | |
| Sensing Area | 19.6 mm² |
| Lifespan | 10 million actuations |
| Operating Temperature Min | -30 °C |
| Operating Temperature Max | 70 °C |
| Customs Information | |
| Canadian HS Export Code | 8423.90.00 |
| American HTS Import Code | 8423.90.10.00 |
| Country of Origin | CN (China) |
| Product | Sensor Properties | Physical Properties | ||
|---|---|---|---|---|
| Part Number | Price | Force Min | Force Max | Sensing Area |
 Interlink Electronics 0.2″ Circular 20N FSR
|
$6.50 | 1 N | 20 N | 19.6 mm² |
 Interlink Electronics 0.5″ Circular 20N FSR
|
$7.50 | 1 N | 20 N | 126.7 mm² |
 Interlink Electronics 1.5″ Square 20N FSR
|
$10.00 | 1 N | 20 N | 14.5 cm² |
| Product | Sensor Properties | Physical Properties | ||
|---|---|---|---|---|
| Part Number | Price | Force Min | Force Max | Sensing Area |
 8″ FlexiForce 0-100lb. Resistive Force Sensor
|
$22.75 | 0 N | 444.8 N | 71.3 mm² |
 8″ FlexiForce 0-1lb. Resistive Force Sensor
|
$22.75 | 0 N | 4.4 N | 71.3 mm² |
 8″ FlexiForce 0-25lb. Resistive Force Sensor
|
$22.75 | 0 N | 111.1 N | 71.3 mm² |
