ALF305 Seat Belt Tension Force Sensor
High performance loadcell for measuring seat belt tension forces
Key features
- Measurement range: 16 kN
- Tension
- Non-linearity 3.0 % RL
- Output signal 1.5 mV/V
- Supply voltage 10 VDC
About the ALF305 Seat Belt Tension Force Sensor
The ALF305 is a high performance load cell for measuring seat belt tension forces. Its geometry was created by computer program to generate an optimal design with minimal mass, material usage, stress and deflection. The outer bars can easily be removed allowing fitting to a seat belt while it is anchored at both ends.
The performance figures are typical values and are dependent on belt type. We can carry out a 5 point calibration using a 2 m sample of customer supplied belt to reduce application errors. The calibration data can be used to reduce non- linearity errors in test results.
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Talk to an expertTechnical Specifications
| Specification | Value |
|---|---|
| Bridge resistance | 350 Ω |
| Creep - 20 minutes | ±0.05% AL |
| Excitation voltage - maximum | 10V |
| Excitation voltage - recommended | 10V |
| Hysteresis | ±1% RL |
| Insulation resistance - minimum at 50vdc | 500 MΩ |
| Load direction | Tension |
| Measurement range | 16kN |
| Non-linearity - terminal | ±3% RL |
| Overload - safe | 30% RL |
| Overload - ultimate | 100% RL |
| Rated output - nominal | 1.5mV/V |
| Repeatability | ±0.2% RL |
| Structural stiffness (normal to belt axis) | 1.9 x 10^7 N/m |
| Temperature effect on rated output per °c | ±0.005% AL |
| Temperature effect on zero load output per °c | ±0.007% RL |
| Temperature range - compensated | -10 to +50°C |
| Temperature range - safe | -10 to +80°C |
| Weight - nominal (excluding cable) | 50g |
| Zero load output | ±4% RL |
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