CE blog: Ask Charlie turns 100!

The Jan. 12, 2009, posting in the Control Engineering Ask Charlie blog is the 100th in the series, answering questions from readers. The automation tutorial blog covers discrete control, motors, drives, sensors, motion control, machine control, embedded systems, and other areas.

01/13/2009


Oak Brook, IL — No, it’s not 100 years old, but the Jan. 12, 2009, posting in the

Control Engineering Ask Charlie blog

is the 100th in the automation tutorial series. Starting with the first posting on March 3, 2007, Ask Charlie has consistently ranked highest in popularity among control engineering professionals. The Ask Charlie blog covers all aspects of automation, especially discrete control, motors, drives, sensors, motion control, machine control and embedded systems. Control Engineering 's print and online magazines, newsletters and other publications.

Image accompanying the first Ask Charlie blog posting explained data acquisition system architecture.

Image accompanying the first Ask Charlie blog posting explained data acquisition system architecture.

That first posting answered the question “

How can I use a PC to measure voltage and current?”

It said: “The technology for measuring virtually any physical quantity using a computer is called data acquisition (DAQ) and is very mature, despite the number of engineers who feel unfamiliar with it. In fact, every engineer uses it regularly for taking measurements because virtually every digital measuring instrument is based on DAQ principles. Oscilloscopes, digital multimeters, SCADA systems, PLCs and anything else that takes analog input and provides digital output uses DAQ architecture. For most of these applications, however, the DAQ architecture is hidden away inside a box to make it look like a specialized piece of equipment.” It went on to discuss DAQ history, architecture and how control engineers can use the technology.
The Jan. 12, 2009, posting answers the question:

“How do gearmotors compare to V-belt drives?"

It points out that through most of the 20th Century, V-belts were generally the best choice for industrial power-transmission applications, largely because of the high cost of machining gears. Advances in CNC milling, coupled with other factors, have driven the total-lifecycle-cost of gearmotors well below that of other mechanical-power sources — including V-belts. They should now be the first choice for industrial power applications.
C.G. Masi , senior editor
Control Engineering News Desk
Register here and scroll down to select your choice of eNewsletters free.





No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Leaders Under 40 program features outstanding young people who are making a difference in manufacturing. View the 2013 Leaders here.
The new control room: It's got all the bells and whistles - and alarms, too; Remote maintenance; Specifying VFDs
2014 forecast issue: To serve and to manufacture - Veterans will bring skill and discipline to the plant floor if we can find a way to get them there.
2013 Top Plant: Lincoln Electric Company, Cleveland, Ohio
Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.

Bring focus to PLC programming: 5 things to avoid in putting your system together; Managing the DCS upgrade; PLM upgrade: a step-by-step approach
Balancing the bagging triangle; PID tuning improves process efficiency; Standardizing control room HMIs
Commissioning electrical systems in mission critical facilities; Anticipating the Smart Grid; Mitigating arc flash hazards in medium-voltage switchgear; Comparing generator sizing software

Annual Salary Survey

Participate in the 2013 Salary Survey

In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.

Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.

2012 Salary Survey Analysis

2012 Salary Survey Results

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.