ELEC 255 Lecture Notes - Lecture 8: Pneumatic Cylinder, Linear Actuator, Solenoid
Document Summary
Q1: 2 position single solenoid spring return cylinder. Not energizing both coils has no effect: 3 position closed centre double solenoid. Great for controlling cylinders and pneumatic actuators. The three-position function allows the user to inch the actuator or cylinder. Name the cylinder and describe how it can be controlled. A single acting pneumatic cylinder is a linear actuator and realizes a working stroke by filling the cylinder with compressed air. The return stroke is usually accomplished by a spring. The cylinder has one connection port that is used either to fill or vent the cylinder. To control the cylinder, a 3/2 way valve is used. 3/2-way means three ports and two positions: one port connects to the source of compressed air; one port is required as exhaust and the third port connects to the cylinder. Air filter to remove contaminants from the air before it reaches pneumatic components.
