A PUMP FOR THE MILLENNIUM
A DISCUSSION OF SOME ASPECTS OF AN ELECTRONICALLY CONTROLLED PUMP FOR UNIVERSAL APPLICATION AND SERIAL BUS COMMUNICATION
You first saw it in Hydraulics and Pneumatics Magazine, but this is the unabridged version, in all of its original, unedited details. If you are designing, using or maintaining electronically controlled pumps, or if you are considering doing so, then this publication is a must for your book shelf.
Now, you can get all the design details that cover the gamut of energy savings, servo stroking, serial bus communication, transducers galore, interconnection methods and even software. This is your chance to get a good overview of a complex subject, but in clear, lucid, easy-to-read form by a renowned teacher and communicator.
$39.95 – 61 pages of the latest and most up-to-date engineering information on the electronic control of hydraulic pumps
TABLE OF CONTENTS
PUMP VERSUS VALVE CONTROL
ADVANTAGE OF PUMP CONTROL OVER VALVE CONTROL
THE UNIVERSAL PUMP PROTOTYPE
VARIATIONS ON THE PROTOTYPE
THERE ARE BUSES IN YOUR FUTURE
Why do we want buses and bus technology?
Planning Hardware for Bus Communication
THE MILLENNIUM PUMP STRUCTURE
THE PUMP KERNEL AND ITS MODIFICATIONS FOR BUS USE
Issues Surrounding the Servo/Proportional Amplifier
The Sensors and Issues Involving Them
Pressure Sensor Issues
Speed Sensor Issues
Other Issues Regarding Speed Sensing
Issues Involving the use of DC Tachometers
Issues Involving Brushless DC Tachometers
Other Issues Involving Speed Sensing
General Comments Regarding Temperature Measurement
Potentiometer as a Displacement Sensor
The LVDT Displacement Sensor
Issues Involving Mounting and Placement of Sensors
Some General Issues Involving Sensor Selection
HYDROMECHANICAL ASPECTS OF THE MILLENNIUM PUMP
UNIDIRECTIONAL PUMP OUTPUT APPLICATIONS
How will the computer know when to send the dump and undump signals to the dump/undump valve?
How does the system determine the actual direction of rotation and then set up the correctly corresponding direction of displacement change?
LOCAL CONTROL VERSUS CENTRALIZED CONTROL
PUMP PERFORMANCE PROFILES
Simple displacement variability
How does the command profile get into the local computer memory?
Pressure compensated operation
Load sense operation of the pump
BIDIRECTIONAL PUMP OUTPUT APPLICATIONS
Conventional Hydrostatic Transmission
Bipolar Speed Control with the
Bipolar Pressure Control with the
CONTROL COMPUTER AND BUS INTERFACING
SERIAL COMMUNICATION BUSES
Look over this detailed Table of Contents for the Millennium Pump, and see for yourself the breadth of subjects that are covered. This can be your easiest way to learn about electronic controls, because it starts with the pump, the very familiar hydraulic pump, and then proceeds to explain how all the electronic gadgets come together to give the control and communication that are necessary in today’s and tomorrow’s most useful applications.