光栅常数 meaning in English

grating constant
grating constent

A new method based on ccd to measure the constant of grating
一种基于ccd的实时测量光栅常数的方法
Ultrasonic grating constant
超声光栅常数
The compensative relations between the tilt angular errors and groove - width difference were obtained and the compensative methods were discussed
针对光栅拼接中的转角误差和光栅常数误差，得到了误差间的相互补偿关系式，并对补偿方式进行了讨论。
The results show that the relative rotation about the position normal to groove can compensate the error caused by the relative rotation about the position normal to the plan of gratings . the relative rotation about the position parallel to groove can compensate the error caused by groove - width difference and the relative rotation about the position normal to groove or about the position normal to the plan of gratings can compensate the error caused by groove - width difference
研究结果表明：绕光栅平面内垂直于刻线方向的转角在一定范围内可以补偿绕光栅厚度方向旋转造成的误差；绕光栅刻线方向的转角可以补偿光栅常数不同造成的误差；绕光栅平面内垂直于刻线方向或绕光栅厚度方向的转角在一定范围内也可以补偿由光栅常数不同造成的误差。