Key Takeaways:
Marusaku hydrostatic rotary tables use a Heidenhain RCN2380 rotary encoder for closed-loop position feedback. Understand how encoder resolution and loop closure lock in ±0.001 mm accuracy.
Measurement Link
A 精度 table needs以know 其中 it为at all times. 丸作精工 静压 回转 tables use Heidenhain RCN2380 回转 encoder as position sensor在 closed-loop control system.

Closed-Loop Principle
controller commands target angle; encoder reports actual angle; difference为corrected continuously by 力矩电机. 该 loop runs thousands的times per second, locking table onto commanded position.
为何 RCN2380
RCN2380为 high-精度 angle encoder 制造用于demanding 回转 轴. Its fine resolution与thermal-stable design suit ±0.001 mm 精度 target的 静压 table.
结果
Even if 油膜 or load shifts slightly, closed loop re-centers table, so 精度为maintained over long production runs rather than decaying.