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A502 Sensor

FlexiForce A502 Sensor

Large, square, standard sensor, ideal for OEM integration.

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$111.50

Description

FlexiForce™ A502 Sensor

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A502 sensors are square standard sensors with a 2-pin male connector. They have a force range of 0-222 N (0-50 lb), specified with Tekscan electronics. The model is linear through a much lower range of 0-22N (0-5 lb), and is capable of measuring loads up to 44,482 N (10,000 lb).*

The dynamic range of this 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).

Typical performance

Force versus Resistance table

Specifications & Performance

Sensor Thickness: 0.203 mm (0.008 in.)
Force Sensor Length: 81.3 mm
Sensing Size (Diameter/Width):  50.8 mm
Standard Force:  222 N
Temperature Range (Low): -40 °C
Temperature Range (High):  60 °C
Connector: 2-pin Male Square Pin
Substrate: Polyester
Pin Spacing: 2.54 mm (0.1 in.)
Notes:  Tekscan's largest standard FlexiForce sensor

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 111 N (25 lb))
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

Durability:

≥ 3 million actuations (Perpendicular load, room temperature, 22 N (5 lb))

Temperature Sensitivity:

0.36%/°C (± 0.2%/°F) (Conductive heating)

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.

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.

A502 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.

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