je.st
news
Tag: tracking
Video: Integral Tracking for the Hot Air Temperature Controller
2015-09-21 22:05:00| Chemical Processing
For a PID controller to perform as expected, changes in the controller output must lead to changes in the opening of one or more final control elements, which must affect the measured variable for the PID controller. Driving a final control element to either limit disrupts this sequence. This requires integral tracking, not output tracking. If the final control element has been driven fully open, control actions to increase the opening cannot be implemented, but control actions to decrease the opening can be. The opposite is true if the final control element is driven fully closed. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Tags: video
hot
air
temperature
Video: Output Tracking for the Hot Air Dampers
2015-09-21 22:02:00| Chemical Processing
Previous videos examined output tracking for the scrubber duct inlet temperature controller and the hot air temperature controller. This video examines output tracking for the hot air pressure controller and the bag house inlet temperature controller. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Video: Output Tracking for the Hot Air Temperature Controller
2015-09-18 19:34:00| Chemical Processing
This video examines output tracking for the hot air temperature controller. The hot air temperature controller outputs to a summer whose output is the fresh air damper opening. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Video: Using Output Tracking for Bumpless Transfer from Manual to Automatic
2015-09-18 19:30:00| Chemical Processing
Tracking comes in two versions output tracking and integral tracking. Output tracking provides smooth transitions from manual operations to automatic operations. Integral tracking prevents reset windup. Output tracking is the subject of this video. To access the entire video series from Cecil Smith, visit our video page. Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including Digital Control of Industrial Processes and more than 100 articles. You can email him at cecilsmith@cox.net. He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here. http://www.chemicalprocessing.com/experts/instrumentation-control/
Tags: to
video
transfer
output
Seattle tracking cell phones to improve traffic flow
2015-09-18 07:25:42| Wireless - Topix.net
The City of Seattle is now using cell phones and tablets as tracking devices to improve traffic flow. But most people are unaware it's even happening, and some are worried they're trading their privacy for improved traffic.
Tags: improve
cell
flow
phones
Sites : [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] next »