Description
QWFK-8M Miniature Reaction Torque Sensor
Key features
- Capacity: 0 – 177 mNm to 0 – 34 Nm
- 0.1 % non-linearity and hysteresis
- Compact size
- High frequency
- Stainless steel construction
- Integral cable (standard)
About the QWFK-8M Miniature Reaction Torque Sensor
Models QWFK-8M miniature reaction torque transducers is engineered for minimum size and to achieve 0.1% maximum nonlinearity. Four bonded strain gages are positioned on a special machined portion of the transducer to effectively measure even slight torque motion. These models operate and are calibrated in both directions. A modular, stainless steel construction and no moving parts provide excellent durability under harsh industrial conditions. Potential miniature reaction torque transducer applications include motor dynamometer, tire braking, twist measurement, and friction-skid test measurements.
Technical Specifications
| Specification | Value |
|---|---|
| Bridge resistance | 350 ohm |
| Case material | Stainless steel |
| Deflection torsional, 100 in-lb to 300 in-lb | 0.00255 radians |
| Deflection torsional, 25 in-oz to 50 in-lb | 0.0027 radians |
| Electrical termination | Teflon cable (1.5 m [5 ft]) |
| Excitation | 10 Vdc (5 Vdc if torque range <100 in-oz) |
| Hysteresis | ±0.1 % full scale |
| Linearity | ±0.1 % full scale |
| Non-repeatability | ±0.03 % full scale |
| Output | 2 mV/V nominal |
| Range | 25, 100, 250 in-oz; 50, 100, 300 in-lb (approx. 177 mNm to 34 Nm) |
| Resolution | Infinite |
| Static overload capacity | 50 % over capacity |
| Strain gage type | Bonded foil |
| System accuracy | ±0.1 % full scale |
| Temperature effect, span | 0.005 % reading/°F |
| Temperature effect, zero | 0.005 % full scale/°F |
| Temperature, compensated | 6 °C to 71 °C [60 °F to 160 °F] |
| Temperature, operating | -54 °C to 107 °C [-65 °F to 225 °F] |
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