DELTA有一个新的TEMPOSONICS MDT棒，分辨率为0.0001mm！

PEN

我们的一名初级工程师正在安装新的MDT杆。
这将允许更平滑和更慢的运动。
0.005mm的移动很容易。
我需要一个更小的阀门。 我们的博世NG10太大了。

DELTA has a new TEMPOSONICS MDT rod with 0.0001mm resolution!!!
One of our junior engineers were installing the new MDT rod.
This will permit smoother and slower motion.
0.005mm moves will be easy.
I will need a smaller valve.  Our Bosch NG10 is too big.

PEN

控制力或压力时，固有频率和阻尼系数不会改变。
但是，开环增益确实会发生变化。
对于位置控制或速度控制，开环增益具有（mm / s）/％控制单位。
对于压力，单位是（Pa / s）/％对照或（MPa / s）/％对照。

对于力控制，有两个开环增益。 一个活塞的每一侧。
集成的压力变化率来计算压力。 然后使用压力计算活塞侧面的力。
力模型更复杂。

The natural frequency and damping factor do not change when controlling force or pressure.
However, the open loop gain does change.
For position control or velocity control the open loop gain has units of (mm/s)/%control.
For pressure the units are (Pa/s)/%control or (MPa/s)/%control.

For force control there are two open loop gains.  One for each side of the piston.
The rate of pressure of change integrated to calculate the pressure. The pressure is then used to calculate the force on that side of the piston.
The force model is more complicated.

蜻蜓

PEN 发表于 2019-6-29 21:20
控制力或压力时，固有频率和阻尼系数不会改变。
但是，开环增益确实会发生变化。
对于位置控制或速度控制 ...

The natural frequency and damping factor do not change when controlling force or pressure.
However, the open loop gain does change.

The natural frequency and damping ratio of the force control system remain unchanged because the hydraulic cylinder rod is basically static. If we want to detect the force driving the load movement and control a load movement with force control, because the oil in the cylinder and the speed change, then the natural frequency and damping ratio are changed, right?
In position and speed control systems, natural frequencies and damping ratios vary, right?

力控系统固有频率和阻尼比不变，是因为液压缸杆基本不动，如果要检测驱动负载运动的力，用“力控制”控制一个负载运动，因为缸内油液变化，以及速度变化，那么固有频率和阻尼比是改变的，对吧？
在位置和速度控制系统中，固有频率和阻尼比是变化的，对吧？

Vancouver

这个TEMPOSONICS MDT棒需要多少钱？

PEN

我犯了一个错误！ 我发布了错误的主题。

back2049

Vancouver 发表于 2019-6-30 02:08
这个TEMPOSONICS MDT棒需要多少钱？

0.1um,1um,10um价格应该是一样的，一样的硬件，只是需要软件修改分辨率

PEN

要获得更高的分辨率，计数器必须更快计数或必须有更多的计数器。
硬件可能相同，但如果计数器是在FPGA中实现的，则需要修改FPGA程序。 FPGA可能需要更大才能容纳更多计数器。

FPGA =现场可编程门阵列

To get more resolution the counters must count faster or there must be more counters.
The hardware may be the same but if the counters are implemented in a FPGA , the FPGA program needs to be modified.  The FPGA may need to be bigger to hold more counters.

FPGA = field programmable gate array