Search results
Results from the WOW.Com Content Network
These tools had numerous reliability problems and harmed the brand's image. Porter-Cable nail gun in use. In 1981, Pentair, Inc. acquired Rockwell's power tool group — consisting of Porter-Cable and Delta Machinery — and restored the Porter-Cable name. The company ended production of consumer level tools, and repositioned itself as a ...
The drive shaft whose speed is being sensed is top right Porter governor on a Corliss steam engine. The devices shown are on steam engines. Power is supplied to the governor from the engine's output shaft by a belt or chain connected to the lower belt wheel.
Bang–bang controls frequently arise in minimum-time problems. For example, if it is desired for a car starting at rest to arrive at a certain position ahead of the car in the shortest possible time, the solution is to apply maximum acceleration until the unique switching point , and then apply maximum braking to come to rest exactly at the ...
A governor, or speed limiter or controller, is a device used to measure and regulate the speed of a machine, such as an engine.. A classic example is the centrifugal governor, also known as the Watt or fly-ball governor on a reciprocating steam engine, which uses the effect of inertial force on rotating weights driven by the machine output shaft to regulate its speed by altering the input flow ...
One of the main results in the theory is that the solution is provided by the linear–quadratic regulator (LQR), a feedback controller whose equations are given below. LQR controllers possess inherent robustness with guaranteed gain and phase margin , [ 1 ] and they also are part of the solution to the LQG (linear–quadratic–Gaussian) problem .
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Porter-Cable is within the scope of WikiProject Tennessee, an open collaborative effort to coordinate work for and sustain comprehensive coverage of Tennessee and related subjects in the Wikipedia. If you would like to participate, you can edit the article attached to this page, and even become a member .
Check if you can visit other sites with a different browser - If you can go to another site, the problem may be associated the browser you're using. If you don't have another browser, download a supported one for free. 2. Check the physical connection - A loose cable or cord can often be the cause of a connection problem. Make sure everything ...