Set Back Control
 |
| No items matching your keywords were found. |
 |
Cuisinart GR-4N 5-in-1 Griddler
List Price:  |
DescriptionThe Cuisinart(tm) Griddler makes "multifunctional" an understatement! Make perfect panini... plus! With four separate cooking options, it can handle everything from pancakes to sausages to grilled cheese to steaks, hamburgers and panini... |
 |
Cuisinart DCC-1200 Brew Central 12-Cup Programmable Coffeemaker
List Price: |
DescriptionA striking blend of retro style and modern technology. Programmable for brewing up to 24 hours in advance. Setting for 1 to 4 cups ensures full-bodied flavor and aroma. BrewPause™ feature lets you enjoy a cup before brewing is finished... |
 |
Cuisinart DCC-1100 12-Cup Programmable Coffeemakers
|
DescriptionThis classically designed coffeemaker is accented with stainless steel for a look that is sure to enhance your countertop. The 12 cup carafe features an ergonomic handle, dripless spout and knuckle guard for comfortable, drip-free pouring... |
 |
Number Ones
List Price: |
DescriptionAll products are BRAND NEW and factory sealed. Fast shipping and 100% Satisfaction Guaranteed. |
 |
Ummagumma
Sale Price: $26.82 |
DescriptionNo Description Available.Genre: Popular MusicMedia Format: Compact DiskRating: Release Date: 23-AUG-1988 |
 |
C-Nile the Golden Child
List Price: |
DescriptionAll products are BRAND NEW and factory sealed. Fast shipping and 100% Satisfaction Guaranteed. |
 |
Honeywell Econoswitch RPLS740B 7-Day Solar Time Table Programmable Switch for Lights and Motors
List Price: |
DescriptionThe Honeywell RPLS740B 7-Day Solar Time Table Programmable Switch for Lights and Motors helps you save money by ensuring that your lights come on only when you need them. This unit works with incandescent, halogen, and fluorescent lighting, making it ideal for indoor or outdoor use... |
 |
GE 51107 Smart Home Wireless Alarm System Kit
List Price: |
DescriptionThe GE 51107 Personal Security Alarm Kit includes everything you need to help secure your home, including a deluxe door alarm with a four-digit keypad and three independent window alarms. Best of all, there's no wiring or drilling required for installation... |
 |
Honeywell RTH7600D Touchscreen 7-Day Programmable Thermostat
List Price: |
DescriptionKeep your home comfortable and cash in on energy savings with the RTH7600D seven-day programmable touchscreen thermostat from Honeywell (formerly packaged as model number RTH7600B). Designed for easy use and quick installation and packed with convenient features, this thermostat gives you programmable, customizable control over your home's temperature without having to make constant manual adjustments... |
 |
Despicable Me (Three-Disc Blu-ray/DVD Combo)
List Price: |
Description"**** This Year's COOLEST Animated Comedy!" - Jeff Craig, Sixty Second Preview Get ready for a minion laughs in the funniest blockbuster hit of the year! Vying for the title of "World's Greatest Villain", Gru (voiced by Steve Carell) - along with his hilarious crew of mischievous minions - plots to pull off the craziest crime of the century: steal the moon! But when Gru enlists the help of three little girls, they see something in him nobody else has ever seen: the perfect dad... |
Proportional-Integral-Derivative (PID) Controller
A proportional-integral-derivative controller, known as a PID controller for short, is a type of device often used in control systems. These systems control other devices or systems and the PID controller helps regulate important variables within the control system. It may affect only one device or many at the same time. Typically, is it used in the industrial and manufacturing fields.
To understand what the PID controller does and why it is such an advantage, an example from everyday life can be used. When a homeowner is cold, she sets the thermostat for the heating unit in her home to the desired temperature. The temperature the house is currently at is known as the process variable. A variable is simply a factor, like the temperature of the house, that can change over time.
The ideal temperature that the homeowner has set her thermostat to is known as the set point. The process variable and the set point can be the same at a given time. If the current temperature of the home is at the desired temperature, they would be the same. Unlike the set point, however, the process variable can change. This happens when the house gets too hot or too cold.
These two terms, the process variable and the set point, are the same terms used to express how a PID controller works. The controller is set to control a variable, whether it's temperature or a different aspect of the system it has control over. The controller tries to find the best solution for keeping this variable at the desired set point.
Differences occur between the PID controller and normal controllers in the way they work. The PID controller uses an advanced formula to try and prevent any errors from occurring. This ensures the devices or systems being controlled perform as flawlessly as possible.
This formula type is known as an algorithm. An algorithm directs actions based on what is happening. The algorithm would have specific directions on how to react to certain changes. It is similar to a magazine quiz that asks questions and then uses arrows to direct the reader to the next question based on her answer to the previous question. In this way, an algorithm is a series of different procedures that can be followed or altered based on what the device receiving the orders is doing.
Finally, the PID controller participates in a feedback loop. Information is sent out by the controller, received by the devices, and information from the devices is sent back to the controller. The controller then makes a decision on how to proceed based on the information it receives and sends it out, creating a continuous loop.
One main advantage stands out above the rest when using a PID controller. It can control various systems or devices with little human interaction. Not only does this allow the workers to concentrate on other tasks, but it also allows many processes to run at once.
About the Author
The author is associated with IPFonline.
http://www.ipfonline.com is India's No. 1 Industrial Product Finder. The portal is a veritable storehouse of information on industrial products/services.