field diagnosis meaning in Chinese
现场诊断
Examples
- The system of far field diagnosis is the system that we usually use in detecting the far field of laser beam . when it is used in detecting the far field of laser beam , the method is simple , and the result is easily seen . so , it was used widely in many application
远场测量系统是最常用的探测激光光束远场光斑的系统，这一系统在评价探测得到的远场光斑质量时，其方法简便易行、结果直观，因此，这种系统在很多需要对激光光束质量进行评价的场合得到广泛应用。 - In fact , hartmann - shack wavefront sensor is affected by the noise of ccd and the constructed error too . in our compare , a bridge is setup , which is the original wavefront composed by zernike polynomial , we transform the original wavefront into far field . then we can compare the accuracy of hartmann - shack wavefront sensor with the accuracy of the system of far field diagnosis in detecting the farfield , using diffraction limit and encircle energy
我们在进行两者相互比较的过程中，搭建了一个比较的桥梁，即由zernike多项式组成的各种原始像差波前，将它也变换到远场作为原始理想远场光斑，然后，以它的衍射极限和环围能量曲线作为评价标准，比较hartmann - shack波前传感器和远场测量系统在光束质量诊断中的探测精度。 - Because the element of the far field diagnosis system which is used to detecte facula is ccd , when it works , much types of noise will affect it , and threshold value will affect the efficient signal . in this paper , hartmann - shack wavefront sensor which can detect the phase of beam is studied , what is detected by hartmann - shack wavefront sensor can be transform into far field , and we compare this result with that detected by the far field diagnosis system , and we can know which system is more accurate
事实上， hartmann - shack波前传感器的ccd在探测光斑阵列时，也同样受ccd噪声因素的影响，并且还有波前本身的复原误差，但是hartamnn - shack波前传感器的ccd噪声影响的是波前复原精度，虽然这也将导致事后处理远场光斑的误差，但这种误差与远场测量系统的误差相比孰大孰小是本文研究的主要内容。