Torque measurement system TM-1/10 is used for dynamic testing and characteristic analysis of small AC/DC motors and torque loads or brakes. Measurement is based on rotating torsional axis and optical detection of flexible deformation. System monitors the behavior of the tested motor at different loads and sends data to the computer to plot a load-performance curve. Instrument-displays show rotation speed, torque-load and braking current for built-in magnetic, hysteretic brake. Braking torque can be adjusted manually or automatically while determining the load curve.