Tekscan FlexiForce A401 Force Sensor - 0-111 N (25 lb) Range, 25.4 mm Sensing Area
The Tekscan FlexiForce A401 is a standard thin-film force sensor with a large 25.4 mm (1 in.) sensing area, designed for integration into testing equipment, embedded electronics, and OEM development kits. It provides a nominal 0-111 N (0-25 lb) range, adjustable via external circuitry, and is compatible with standard 2.54 mm pin-spaced connectors.
Features
- Large 25.4 mm (1 in.) circular sensing area for distributed force measurement.
- Nominal force range of 0-111 N (0-25 lb), adjustable via drive voltage and feedback resistor.
- Ultra-thin 0.203 mm profile for minimal intrusion in assemblies.
- High linearity with less than ±3% full-scale error and fast 5 µs response time.
- Robust polyester construction with an operating temperature range of -40°C to 60°C.
Out of stock
The FlexiForce A401 sensor utilizes a piezoresistive sensing element, where applied force changes the resistance across its active area. This change in resistance can be measured using a simple voltage divider or operational amplifier circuit, converting the force into a proportional analog voltage signal. The sensor’s ultra-thin and flexible polyester substrate allows it to conform to curved surfaces and fit into tight spaces without affecting the measurement environment.
Its performance is characterized by excellent repeatability (< ±2.5%) and low hysteresis (< 4.5% of full scale), ensuring reliable measurements across multiple cycles. The nominal 0-111 N range can be dynamically modified by adjusting the circuit's drive voltage (VT) and feedback resistor (RF), enabling custom configurations from very low forces (e.g., 0-4.4 N / 0-1 lb) up to high forces (e.g., 0-31 kN / 0-7000 lb) as per application requirements.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 3.2 × 0.8 × 0.0203 cm |













