Thomas Jefferson National Accelerator Facility Newport News, VA Abstract. The technologies of direct digital down converters, digital frequency synthesis, and digital signal processing are being used in many commercial applications. Because of this commercialization, the component costs are being reduced to the point where they are economically viable for large scale accelerator applications. T...

In this article, utilizing Delphi 7.0 as the development platform, we design the system to collect or record measurement data through electronic digital caliper and digital table, compute control parameters of quality control chart, draw the process control chart of controlled objectives and read, analyze and manage the measurement data.

We have developed a hardware-assisted interprocess communication (IPC) that enables the design of a digital control system using component-based software on embedded microcontrollers with limited resources. The realtime communication mechanism allows processes to exchange data in a predictable and timely manner, with minimum overhead. The hardware assist is a modified direct memory access (DMA)...

Tracking control of the direct-drive robot manipulators in high-speed is a challenging problem. The Coriolis and centrifugal torques become dominant in the high-speed motion control. The dynamical model of the robotic system including the robot manipulator and actuators is highly nonlinear, heavily coupled, uncertain and computationally extensive in non-companion form. In order to overcome thes...

A novel approach for visual control of electronic digital music instruments is proposed, which is suitable for being applied in mixed ensembles of human musicians and electronic instruments. Gesture tracking and baton tracking by established computer vision methods provide input of either direct musical parameters (volume, pitch, expression) for the sound creation (control of synthesizer instru...

High performance vibration isolators are required for ground based gravitational wave detectors. To attain very high performance at low frequencies we have developed multistage isolators for the proposed Australian International Gravitational Observatory detector in Australia. New concepts in vibration isolation including self-damping, Euler springs, LaCoste springs, Roberts linkages, and doubl...

the paper is devoted to solution of some problems in nuclear power station generating unit intellectual control systems using genetic algorithms on the basis of control system model development, optimizations methods of their direct quality indices and improved integral quadratic estimates. some mathematical vector models were obtained for control system multicriterion quality indices with due ...

This paper presents a simple model predictive control (MPC) approach to control the power injection system (PIS) for renewable energy applications. A DC voltage source and a single-phase inverter that is connected to the grid by an LCL filter form the PIS. Grid voltage is considered a disturbance for the system. For eliminating this disturbance, a modified model is proposed. It is usual to ...

This paper presents a simple model predictive control (MPC) approach to control the power injection system (PIS) for renewable energy applications. A DC voltage source and a single-phase inverter that is connected to the grid by an LCL filter form the PIS. Grid voltage is considered a disturbance for the system. For eliminating this disturbance, a modified model is proposed. It is usual to ...