Bimorph-Type Optical Actuator Using PLZT Elements. 1st Report. Position Control of Optical Actuator by On-Off Control.

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Characterization of PLZT Ceramics for Optical Sensor and Actuator Devices

Application of the airflow control by electro-hydrodynamic actuator

The technique used to control the airflow is based on the electro-hydrodynamic actuator which is also called plasma actuator. This actuator ensures the airflow control thanks to the electric wind created by the electrical corona discharge. This ionic wind is developed at the profile surface tangential to the initial free airflow so that it has a significant effect on the boundary layer flow. Th...

Accurate position control of a pneumatic actuator using on/off solenoid valves

paper deals with accurate positioning of pneumatic actuator using solenoid controller to development a fast, accurate, and inexpensive position-controlled that may be applied to a variety of practical positioning applications are described. A Pulse Width Modulation PWM valve pulsing algorithm to allow the on/off solenoid valves to use in the place of costly servo valve. The open-loop characteri...

Experimental Hysteresis Identification and Micro-position Control of a Shape-Memory-Alloy Rod Actuator

In order to exhaustively exploit the high-level capabilities of shape memory alloys (SMAs), they must be applied in control systems applications. However, because of their hysteretic inherent, dilatory response, and nonlinear behavior, scientists are thwarted in their attempt to design controllers for actuators of such kind.  The current study aims at developing a micro-position control system ...