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发表于 2021-8-15 23:14:53
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杨世洋提出了更多虚假的主张。我使用我们的旧博世 NG 10 阀门来应对杨涛移动 5 微米的挑战。我们获得了分辨率为 0.1 微米的 Tempsonics MDT 棒。由于前馈项仅基于速度,因此模拟输出信号相对恒定,因此我们可以在低速下平稳移动。同一个阀门可以以超过 1000 毫米/秒的速度移动执行器。那就是200000/1的速度比。步进气缸无法做到这一点。
看到这个话题
https://www.iyeya.cn/thread-66971-1-1.html
步进气缸不能以每秒 5 微米的速度移动。步进圆柱体可以在一秒钟内移动 5 微米,但它以步进或跳跃的方式移动 5 微米。速度不是恒定的。然后步进气缸以缓慢的步进速率以生涩的步进移动。步进气缸将移动 5 微米,然后在剩下的时间里停止。然后它会再移动 5 微米,并在第二秒的剩余时间内停止。 RMC 的模拟输出将相对恒定,因为它基于速度前馈项。
RMC 具有 16 位数字到模拟输出。这提供了 32767 伸出和 32767 缩回的输出分辨率,但 RMC 可以通过非常快速地改变控制输出来有效地获得更高的分辨率。如果 RMC 需要输出 1.5 个计数,它可以在 0.5 毫秒内输出 1 个计数,在 0.5 毫秒内输出 2 个计数,阀门将随着时间的推移平均输出,因此我们可以获得比 +/- 32767 更高的分辨率。
使用这个技巧,我们甚至可以让只有 12 位输出的旧 RMC100 像它有 16 位输出一样工作。
我们在无锡的经销商
https://www.iyeya.cn/thread-74684-1-1.html
有一个视频,其中它们以微米平滑地移动。
我会让他们发布视频并解释。
Yang Shi Yang makes more false claims. I used our old Bosch NG 10 valve to meet Yang Tao’s challenge of moving 5 microns. We obtained a Tempsonics MDT rod that has a resolution of 0.1 microns. We can move smoothly at slow speeds as the analog output signal is relatively constant due to the feed forward terms which are based on speed alone. The same valve can move the actuator at speeds over 1000 mm/s. That is a speed ratio of 200000/1. Stepper cylinders cannot do this.
See this topic
https://www.iyeya.cn/thread-66971-1-1.html
Stepper cylinders cannot move at 5 microns per second. A stepper cylinder can move 5 microns in a second, but it moves the 5 microns in steps or jumps. The speed is not constant. Then stepper cylinder moves in jerky steps at slow step rates. The stepper cylinder would move 5 microns then stop for the rest of the second. Then it would move another 5 microns and stop for the rest of the second. The RMC’s analog output would be relatively constant because it would be based on the velocity feed forward term.
The RMC has 16-bit digital to analog outputs. That provides an output resolution of 32767 extending and 32767 retracting but the RMC can effectively get more resolution by changing the control output very rapidly. If the RMC needs an output 1.5 counts, it can output 1 count for 0.5 milliseconds and 2 counts for 0.5 milliseconds the valve will average the output over time so effectively we can get much more resolution than +/- 32767.
Using this trick, we could even get our old RMC100 with only 12-bit outputs to function like it had 16-bit outputs.
Our distributor in Wuxi
https://www.iyeya.cn/thread-74684-1-1.html
has a video where they move smoothly by microns.
I will let them post the video and explain.
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