A Study on the Control Characteristics of FHA by Using PLC

Abstract

The purpose of this study is to visualize the characteristics of ER fluids as preceding step of developing 3 port ER valves.As the strength of the electric field increases, more clusters in flow are made and these clusters are thought to be the reasons of the load flow rate being increased and the outlet flow rate being decreased. The ER Valves and load and outlet flow rate check method are considered to be applied to the fluid power control system. Using the manufactured pressure control valve, a one-link manipulator with FHA in robot system is driven. As a result, it is experimentally confirmed that the pressure control valve using ER fluids is applicable to use in driving actuator. If it applies characteristics of the ER fluids, it will be able to apply in the control system for the ER Valve which occurs from industrial controller(PLC).

Development of Programmable Logic Controller-Based Supervisory System for Group Production Machine

“…특히 컴퓨터로 이러한 신호를 받기 위해서는 Digital 신 호를 컴퓨터가 받을 수 있는 신호로 바꾸어 주는 프로토콜 변환 장치가 필요하다 [6] . [7] . 이 방법은 NC기계에 범용적으로 사용되는 I/O 접점의 정보 [9] .…”