Talk:National Engineering Laboratory

Politics of the United Kingdom Low‑importance

	This article is within the scope of WikiProject Politics of the United Kingdom, a collaborative effort to improve the coverage of Politics of the United Kingdom on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Politics of the United KingdomWikipedia:WikiProject Politics of the United KingdomTemplate:WikiProject Politics of the United KingdomPolitics of the United Kingdom articles
Low	This article has been rated as Low-importance on the project's importance scale.

Engineering Low‑importance

	Engineering portal This article is within the scope of WikiProject Engineering, a collaborative effort to improve the coverage of engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EngineeringWikipedia:WikiProject EngineeringTemplate:WikiProject EngineeringEngineering articles
Low	This article has been rated as Low-importance on the project's importance scale.

United Kingdom Low‑importance

	United Kingdom portal This article is within the scope of WikiProject United Kingdom, a collaborative effort to improve the coverage of the United Kingdom on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.United KingdomWikipedia:WikiProject United KingdomTemplate:WikiProject United KingdomUnited Kingdom articles
Low	This article has been rated as Low-importance on the project's importance scale.

Scotland Low‑importance

	Scotland portal This article is within the scope of WikiProject Scotland, a collaborative effort to improve the coverage of Scotland and Scotland-related topics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ScotlandWikipedia:WikiProject ScotlandTemplate:WikiProject ScotlandScotland articles
Low	This article has been rated as Low-importance on the project's importance scale.

I've written this short article from my own knowledge of NEL from the mid-1970s. If anyone can fill it out, go ahead. Also, NAFEMS could do with a separate article but I don't know enough of the history to write it. I'll put in a stub though.RDT2 10:50, 12 August 2006 (UTC)[reply]

Info on "Leslie and Russell code" of National Engineering Laboratory used in position encoders?[edit]

Researching codes used for position encoders (like linear or rotary encoders) for a Wikipedia article (like Gray code), in a 1972 book I stumbled upon a code apparently called "Leslie and Russel code", presumably used or originating at National Engineering Laboratory, UK:

Wightman, Eric Jeffrey (1972). "Chapter 6. Displacement measurement". Instrumentation in Process Control. Butterworth & Co. p. 123. ISBN 0-408-70293-1.

The book states:

"Other forms of code are also well known. Among these are the Royal Radar Establishment code; The Excess Three decimal code; Gillham code which is recommended by ICAO for automatic height transmission for air traffic control purposes; the Petherick code, and the Leslie and Russell code of the National Engineering Laboratory. Each has its particular merits and they are offered as options by various encoder manufacturers. A discussion of their respective merits is outside the scope of this book."

Unfortunately, I could not find any further info on this code, which, perhaps, was more commonly known under another name. Also, I was not able to identify the two persons named Leslie and Russell. If anyone has any further info on this code, or other hints helping to find better info, please reply/ping me. Thanks. --Matthiaspaul (talk) 21:10, 16 January 2018 (UTC)[reply]

Meanwhile I could find another source for this code:

Leslie, William "Bill" H. P.; Russell, A. (1964). A cyclic progressive decimal code for simple translation to decimal and analogue outputs (Report). East Kilbride, Glasgow, UK: National Engineering Laboratory. NEL Report 129. (17 pages)

Can someone provide additional background on this?

Does someone know the full names of the authors?

--Matthiaspaul (talk) 19:58, 16 May 2020 (UTC)[reply]

Some more publications, which appear to be related but need further investigation:

Leslie, William "Bill" H. P. (1974). "The work on NC at NEL". In Koenigsberger, Franz; Tobias, Stephen Albert (eds.). Proceedings of the Fourteenth International Machine Tool Design and Research Conference, 12–14 September 1973. The Macmillan Press Ltd. pp. 215–224 [215, 217]. ISBN 978-1-34901921-2. LCCN 73-16545. SBN 333-14913-0. ISBN 1-34901921-6. {{cite book}}: Check |editor-link1= value (help)
Russell, A. (1963). Binary-code conversion using nor logic units. East Kilbride, Glasgow, UK: National Engineering Laboratory. (9 pages)
Russell, A. (1966). An absolute digital measuring system using optical grating and shaft encoder. East Kilbride, Glasgow, UK: National Engineering Laboratory. (24 pages)
Russell, A. (1968). Technical aspects of the NEL absolute grating measuring system. East Kilbride, Glasgow, UK: National Engineering Laboratory. (46 pages)
Whitwell, Arthur L. (1967). "Decimal data-handling equipment". US3594561A.

Related keywords:

Whitwell Developments Ltd.: linear and angular measurement and control systems ("Teletrak")
Moore Reed (Industrial) Ltd.: rotary coded disc encoders in military (the "Auto-scale")
https://www.sciencedirect.com/science/article/pii/0010448587901527?via%3Dihub

--Matthiaspaul (talk) 09:31, 21 May 2020 (UTC)[reply]

External links modified (February 2018)[edit]

Hello fellow Wikipedians,

I have just modified one external link on National Engineering Laboratory. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive http://webarchive.nationalarchives.gov.uk/20090506145815/http://www.dius.gov.uk/ to http://www.dius.gov.uk/

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 17:17, 13 February 2018 (UTC)[reply]