zero-center instrument

In optical measurement, we could calibrate precision instrument and increase the measuring precision by using the laser interference ( diffraction) fringe orders; the fringe orders could be automatically determined by the zero order fringes' minimum chromatic polarization;

光测量主要通过激光发生干涉（衍射），利用干涉（衍射）条纹的级次进行定标、精确测量，利用零级条纹色偏最小原理，对条纹级次进行自动判断；

To adjust to zero value, of an instrument or device.

把工具或装置调整到零位置。

After the zero alignment had ended, the instrument exuded the buzzing sound, the instrument calibration finishes.

调零结束后, 仪器发出蜂鸣声, 仪器校准结束.

A novel comparator-type instrument transformer calibrator with electric zero adjustment is presented in this paper.

介绍了一种带有电子调零线路的新型比较仪式互感器校验仪.

With optocoupler for measuring the components to complete the simulation of instrument zero function pointer and uses ARM processor-based instrument to achieve the level of the simulation program.

以光耦为测量元件来完成仿真仪表指针归零功能并采用了基于ARM处理器的仿真水平仪的实现方案。