The WTT-Dx, which is waterproof according to an IP67 protection rating, acquires the torque in the axial direction (My) by means of integrated strain gauge sensors. The fully differential design of the strain gauge amplifier, including the bridge feed, ensures maximum interference suppression.
Thanks to the clever design of the sensor housing, the WTT-Dx also delivers high-precision measurement data even during dynamic maneuvering which causes high temperatures. The mechanical stability of the sensor housing is designed to last for multiple vehicle lifetimes of heavy SUVs.
To enable measurements in snow, ice and condensation, the sensor housing, power supply and electronics were integrated into a water-tight (IP67) housing. The special rechargeable batteries installed in the sensor allow measurements at a temperature range of -30 °C to + 60 °C.
Each WTT wheel torque transducer is equipped with a Dx-telemetry digital transmitter unit. Measurement data from up to four WTTs are transmitted wirelessly from the wheel to receiving antennas on the outside mirrors - thanks to digital technology, interference-free and high-resolution. The Dx-transmitter units integrated in the wheels are centrally controlled and clocked by the receiver unit in the vehicle. This highly simultaneous sampling of all four wheels makes it possible to detect and validate fast control processes between the wheels with high temporal precision. Measurement data are output at the receiver unit via CAN or analog and can therefore be easily integrated into existing measurement systems.
The installation of a WTT-Dx is almost as easy as a wheel change - four WTTs can be mounted in one hour. Thanks to an uncomplicated system set-up and convenient software functions, such as the zero calibration, the system can be test-ready within a very short time.
|量程||±6000 Nm，可选 ±3000 Nm|
|线性度||< 0,5 %|
|迟滞||< 0,5 %|
|串扰||< 0,5 %|
|传感器重量||ca. 4,75 kg (含无线遥测单元)|
ca. 6,3 kg (含电脑)
|载荷分析标准||AK-LH-08 4.34 标准应力分析|
|工作温度||-10 °C 至 +60 °C (标准电池)|
-30 °C 至 +60 °C (宽温电池)