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FlexiForce A201 Sensor

FlexiForce A201 Sensor

Most popular standard sensor that meets the requirements of most customers.

Download Datasheet

$71.10

Description

FlexiForce™ A201 Sensor

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A201 sensors are trimmable and have a 3-pin male connector. 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 small, versatile force sensor can be modified by changing the drive voltage and adjusting the resistance of the feedback resistor (see "How to Adjust the Force Range" within the Electronics tab on the left).

Specifications & Performance

Force Sensor Length: 
7.50 in
6.00 in
4.00 in
2.00 in
Sensing Size (Diameter/Width): 
0.375 in
Standard Force: 
1 lbs
25 lbs
100 lbs
1,000 lbs
Temperature Range (Low): 
-40 F
Temperature Range (High): 
140 F
Notes: 

Most popular standard sensor, can be trimmed

Typical Performance

Linearity (Error): < ±3% of Full Scale (Line drawn from 0 to 50% load)

Repeatability: < ±2.5% (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 25lb (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)††

Acceptance Criteria: ±40% sensor-to-sensor variation
 

All data above was collected utilizing an Op Amp Circuit. If your application cannot allow an Op Amp Circuit, consult the FlexiForce Integration Guide, or contact a FlexiForce Applications Engineer.

††Force reading change per degree of temperature change = 0.36%/ºC (±0.2%/ºF)

Electronics

Tekscan Recommends Using an Op Amp Circuit

If your application cannot allow an Op Amp Circuit, consult the FlexiForce Integration Guide, or contact a FlexiForce Applications Engineer. If you prefer to build your own electronics, we recommend using a circuit similar to the diagram below. This will provide linear data, making it easier to calibrate the sensor.

A201 circuit diagram

How to Adjust the Force Range:

*In order to measure higher forces, apply a lower drive voltage (-0.5 V, -0.25 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.

Related Products

FlexiForce OEM Development Kit

FlexiForce OEM Development Kit

The FlexiForce OEM Development Kit allows design engineers to economically obtain proof-of-concept data while determining how FlexiForce force sensors will behave within their product or application environment.

FlexiForce Quickstart Board

FlexiForce Quickstart Board

The FlexiForce Quickstart Board 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.