Virtual haptical system is a circulate feedback closed loop, including bidirectional information transfer between virtual and really environment.

虚拟触觉系统是一个触觉信反馈的闭系统,其中包含着虚拟境与现实境两者之间双向的信传递。

This paper presents an all-digital close-loop operation based on DSP circuits, which uses the two-frequency serrodyne modulation to modulate and demodulate the optic route.

字信号处理电路的谐振式光纤陀螺全字闭是采用双频率字锯齿波相位调对光路进行了相应的调和解调。

Main loop uses silicon-controlled hexaphase half-wave closed loop control technology, not influenced by electrical network voltage undulation and welding cable length, the performance is more stable.

主回路采用可控硅六相半波闭控，不受电网电压波动和焊接电缆长度的影响，性能更加稳定。