本文基于一种常用的扭转试验机，采用了技术较为成熟的扭矩传感器，通过平衡力法测量扭矩，并采用光电编码器测量扭转角；
Torque is measured by equilibrant method in virtue of torque transducer and torsional angle is measured in virtue of photoelectric coder on conventional experimental machine.
本试验机用于对弹簧作扭转试验，测定弹簧的扭矩和转角。
This machine is applied to test torsion of springs, and measure torque and rotor Angle of springs.
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