نتایج جستجو برای: servo control
تعداد نتایج: 1331311 فیلتر نتایج به سال:
A new seismic isolation system, TAMA Seismic Attenuation System (TAMA-SAS), was installed to TAMA300 in order to improve the sensitivity at low frequencies. Inertial damping is one of the hierarchical control systems of the TAMA-SAS which are employed to give full play to its ability. We have established two servo loops to control the Inverted Pendulum (IP) which composes the SAS. One is the se...
This paper proposes a control approach that can provide significant energy savings for the control of pneumatic servo systems. The control methodology is formulated by decoupling the standard four-way spool valve used for pneumatic servo control into two threeway valves, then using the resulting two control degrees of freedom to simultaneously satisfy a performance constraint (which for this pa...
There is an increasing trend in using robots for medical purposes. One specific area is the rehabilitation. There are some commercial exercise machines used for rehabilitation purposes. However, these machines have limited use because of their insufficient motion freedom. In addition, these types of machines are not actively controlled and therefore can not accommodate complicated exercises req...
The application of a dual relay feedback approach towards the identification of frictional effects in servo-mechanisms will be presented in this paper. The friction model, thus identified, will consist of Coulomb (including possibly directional Coulomb or load bias) and viscous friction components, both of which can be automatically extracted from suitably designed relay experiments. At the sam...
Preface Two y ears ago at the 1994 IEEE International Conference on Robotics and Automation, we organized a workshop on visual servo c o n trol. The workshop was an overwhelming success, with over 60 participants interested in hearing about the current state of vision-based control. A short poll of participants indicated that most were viewing the workshop as a \tuto-rial" of sorts. Unfortunate...
An automatic micro manipulation system (AMMS), which aims at various kinds of operations in the field of bioengineering has been developed. Visual servo control is usually employed to improve the performance of the system. However, the visual information can not be obtained as fast as expected because there is a great amount of computation in image processing. This hinders the formation of clos...
Full software AC servo controllers have been developed with special real time software in the Windows NT operating system. The full software AC servo controllers are able to control multiple AC servomotors with the CPU of a personal computer. The controller handles 1 00s commutation and current feedback, 200s velocity feedback, and 1 ms position feedback. The full software AC servo controllers ...
To improve product quality in high-tech industrial fields and in precision product processes, high precision position control systems have been developed. However, high precision position control systems have been faced with a friction problem that exists between the contact surfaces of two materials and produces an obstacle to the precise motion, because the friction is very sensitive to nonli...
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