中文字幕高清在线免费播放,尤物视频免费观看,国产精品免费?Ⅴ片在线观看,高清无码中文字幕全国,亚洲中文字幕久在线,中文字幕不卡一区二区三区四区,最新中文字幕aⅴ专区,久久精品在线国产

Sales Hotline

+86-13812297748

Laser interferometer
Technical Parameters:
System accuracy: ± 0.5ppm (0 ~ 40 ℃ the entire working environment)
Laser frequency stabilization accuracy: ± 0.05ppm
Resolution: 0.001um
Measurement speed: 4.0m / sec
Sampling frequency: 50KHz
Measuring range: 0-80metres
Warm-up time: ~ 6 minutes