Introduction to Proportional (Servo) Valves (Full Lecture) скачать в хорошем качестве

Introduction to Proportional (Servo) Valves (Full Lecture)

In this lesson we'll take a brief introductory look at proportional (servo) valves. We'll discuss how proportional valves serve to control both flow rate and direction as well as examine proportional valve construction. We'll learn that proportional valves are electrically actuated continuously variable combinations of flow control valves and directional control valves integrated in the same package that lend themselves to advanced functionality. We'll examine proportional valve performance data, specifically, flow rate as a function of applied voltage and discuss dead band, hysteresis, overlapped, and line to line spools, and observed non-linearities. Additionally, we'll examine hysteresis compensation via closed loop control of spool position using the internally generated feedback provided by a spool position transducer know as an LVDT. Additionally, we'll briefly introduce acceleration and deceleration control made possible by ramp generators. Finally, we'll briefly discuss filtration and fluid requirements and maintenance and service procedures unique to proportional valves. (Full Lecture) ___________________ If you wish to support this project please visit the Patreon page at:   / bigbadtech   ___________________ Copyright information: Use this lecture. Use it at home, at work, or at school. Put it in a playlist, embed it in a website, share it with your coworkers, family, friends, and enemies. I made this lecture and posted it on YouTube so users everywhere have free access to this information. This being said, this YouTube channel is meant to be the sole point of distribution for this lecture. Users are not authorized to download it, change it, or charge for access. Don’t even think of downloading it and uploading to your own channel and pretending it’s your own work. Not cool. Use this lecture and let your friends know this free resource exists. Use it. Don't steal it. Be cool. __________________ For more FREE online technical training check out the following playlists available at the bigbadtech channel: DC Circuit Analysis    • DC Circuit Analysis   Single Phase AC Circuit Analysis    • Single Phase AC Circuit Analysis   3 Phase AC Circuit Analysis    • 3 Phase AC Circuit Analysis   Hydraulics    • Hydraulics and Electrical Control of Hydra...   Pneumatics    • Pneumatics   Motor Control    • Motor Control   Motors and Generators    • Motors and Generators   Motor Drives/Variable Frequency Drives (VFD)    • Motor Drives   Programmable Logic Controllers (PLCs)    • Programmable Logic Controllers (PLCs) (IN ...