This circuit design method requires specialists in a given technology to ensure success. For example, the ladder diagram method used by electricians employing relays is far different from the aquot;cascadeaquot; method used ... Double pilot pneumatic spool valves do not require feedback; they maintain the shifted position by friction.
|Title||:||Fluid logic controls and industrial automation|
|Publisher||:||John Wiley & Sons - 1973-11-09|