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Keith Armstrong

After working as an electronic designer, then project manager and design department manager, Keith started Cherry Clough Consultants in 1990 to help companies reduce financial risks and project timescales through the use of proven good EMC engineering practices. Over the last 20 years, Keith has presented many papers, demonstrations, and training courses on good EMC engineering techniques and on EMC for Functional Safety, worldwide, and also written very many articles on these topics. He chairs the IET’s Working Group on EMC for Functional Safety, and is the UK Government’s appointed expert to the IEC committees working on 61000-1-2 (EMC & Functional Safety), 60601-1-2 (EMC for Medical Devices), and 61000-6-7 (Generic standard on EMC & Functional Safety).

From This Author

Banana Skins – May 2021 (#330-332)

Chris van Rossman of Corvallis Oregon turned on his do-everything combo TV and got a big surprise—the police, the Civil Air Patrol, and the County Search and Rescue Officers knocked on his door.

Banana Skins – March 2021 (#322-329)

We are all aware of TVs and radios being affected by vacuum cleaners, food mixers, mobile phones, and the like...

Banana Skins – February 2021 (#316-321)

A number of people who had been enjoying weightless activities in the non-spinning central hub of Virgin Space Ltd’s newest hotel “Arthur C Clarke III” found themselves trapped on the ‘ceiling’ for 15 minutes...

Banana Skins – January 2021 (#307-315)

Typically, regular voltage quality spot checks are made throughout a local distribution system with additional measurements taken when a customer asks; is there a voltage problem?

EMC and Safety for Installations: Part 2

In Part 2 of this two-part article, we’ll discuss the development and use of isolated bonding networks (IBNs).
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Banana Skins – November 2020 (#295-301)

We are proud to carry on the tradition of sharing Banana Skins for the purpose of promoting education for EMI/EMC engineers.

EMC and Safety for Installations: Part 1

In Part 1 of this two-part article, we’ll discuss the development of “grounding networks” and the shift to meshed structures to reduce damage from overvoltages. Part 2 will appear in our November 2020 issue.

Banana Skins – October 2020 (#291-294)

Numbers 291 - 294 are taken from the Appendix to MIL-STD-464A dated 18 March...

Banana Skins – August 2020 (#286-290)

The regular “Banana Skins” column was published in the EMC Journal, starting in January 1998.

Banana Skins – June 2020 (#278-285)

The Banana Skin columns were compiled by Keith Armstrong, of Cherry Clough Consultants Ltd, from items he found in various publications, and anecdotes and links sent in by the many fans of the column.
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