A3.2 - High Precision Torque Measurement Systems in Engine Test Benches

Sven Kuhn & Rainer Schicker
The demand for drive concepts to develop economical vehicles that meet environmental guidelines always involves increasing requirements on test equipment. Highly dynamic, high-resolution torque measurements in the shaft train are essential for designing and optimizing engine, transmission and chassis. Reproducibility is very good with modern, strain gage-based torque transducers. The overall accuracy of the torque measuring system is basically determined by mechanical disturbance variables and by thermal and humidity effects that have not been compensated...