The A301 is optimized for high volume manufacturing and ideal for embedding into products and applications. The 2-pin sensors are currently our smallest standard sensor. We highly recommend you use A301 sensors with our Quickstart Board (pictured below), a finished single voltage source circuit, if you are not using your own electronics or multimeter.
The sensors are available in three force ranges: Low 4.4 N (0 – 1 lb), Medium 111 N (0 – 25 lb) and High 445 N (0 – 100 lb)*. The force ranges stated are approximations. The dynamic range of this force sensor can be modified by changing the drive voltage and adjusting the resistance of the feedback resistor.
*In order to measure higher forces, apply a lower drive voltage (-0.5 V, -0.10 V, etc.) and reduce the resistance of the feedback resistor (1kΩ min.) To measure lower forces, apply a higher drive voltage and increase the resistance of the feedback resistor.
For an alternative to the recommended circuit, try our FlexiForce® Quickstart Board. This is a finished single voltage source circuit which can be quickly dropped into a prototype or easily designed into a product to obtain force measurements.
Linearity (Error): < ±3% (Line drawn from 0 to 50% load)
Repeatability: < ±2.5% of Full Scale (Conditioned Sensor, 80% of Full Force Applied)
Hysteresis: < 4.5 % of Full Scale (Conditioned Sensor, 80% of Full Force Applied)
Drift: <5% / logarithmic time (Constant Load of 25 lb (111 N))
Response Time: < 5 µsec (Time required for the sensor to respond to an input force; Impact load – recorded on Oscilloscope)
Operating Temperature: -40°C – 60°C (-40°F – 140°F)*
* Force reading change per degree of temperature change = 0.36%/ºC (±0.2%/ºF).