测角中误差是表示三角(导线)控制网角度精度的一种数值指标。一般依三角形闭合差或平差改正数求得。
运用三联脚架法减弱仪器对中误差和目标偏心误差，从而提高导线测角和测距精度。
Using trigeminy tripod method weakens instrument center deviation and target partiality error, thereby improve wire goniometry and ranging accuracy.
由于感应同步器测角系统的误差的存在，相当于在系统的输入端加入了一个干扰，从而在电机控制系统中引起电机速率的波动。
The error of inductosyn Angle measurement system will cause ripple of speed in DC motor control system. This error is equal to adding a disturbance to the input.
在利用单摆测重力加速度实验中，有复摆、空气浮力、空气阻力、摆角等多种误差因素。
In the experiment of measuring gravity acceleration with a pendulum, a few error factors are existed, such as complex pendulum, air buoyancy, air resistance and initial displacement.
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