Mining

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Armstrong, Keith

Interference and safety: design, training and solutions

Details

Services Provided:

Training, design and problem-solving services in EMC, EMI, RFI, Interference, Emissions, Immunity, Susceptibility, Electromagnetic Interference, Safety, and EMC for Functional Safety.

For every type of device, product, equipment, vehicle, appliance, apparatus, machine, system or installation.

For reducing financial risks, increasing profits, increasing uptime, improving safety, or achieving regulatory compliance (e.g. EU Directives such as EMC and LVD).

Smallwood, Jeremy

Static electricity, ESD, consultancy, research & development, training

Details

Services Provided:

Static electricity (electrostatics) research and development, consultancy and training services. Site static electricity surveys for industrial processes. Site ESD surveys for the electronics industry. In-house and public seminars and training courses. Specialist backup for your R&D team.

Taylor, David Adrian Walter

Independent Mechanical Engineer - machinery, vehicles - expert witness

Details

Services Provided:

Troubleshooting, analysis and design of all classes of industrial machinery, road vehicles, railway rolling stock, power plant and structures. Electronic measurement and recording for vibration, loads, stresses & working characteristics with strain gauges etc. Failure investigations, metallurgy and mis-use of equipment. Fatigue and fracture analysis. Experienced in reports for loss adjusters/claims administrators and for matters of litigation. Experienced expert witness. Trained and experienced as an SJE.

Yardley, Russell John

Power electronics consultant

Details

Services Provided:

The services of myself, Russell John Yardley, I supply via my company, Northstead Design Ltd.
My main area of expertise is Power electronics and its control and in particular
Switched mode power supply design. (SMPS).
Related to this I get involved in the design of transformers and inductors for bespoke power supply design.
Prior to branching off as a freelance electronics engineer I worked for the following company's as an electronic
design and development engineer:-
GEC Industrial Controls (Kidsgrove 1982-1986)
Powernetics (Loughboro 1986-1990)
Pektron (Derby 1990-1992)
Erskine Systems (Scarborough 1992-2000)

Typical services I offer are:-

• Electronic Circuit Design
• Consultancy/Advice:- As and when needed priced by the hour/day.
• Existing products and support issues

• Electronic/product design reviews
• Electronic equipment FMEA’s and single fault test plans
• Power electronics design/development and assistance in the same.
• Switched Mode Power Supply (SMPS) design and development assistance.
• Circuit simulation and feasibility studies.
• EMC compliance troubleshooting assistance
• Technical documentation. Product specifications, test specifications, product operating specifications, circuit design description.
• Test procedures.
• Design Review assistance (from a 3rd party point of view)
• General electronic development “bench” testing
• Design and verification testing
• Component reliability issues
• Design to cost exercises
• Product failure investigations
• PCB layout assistance
• Embedded micro and associated firmware
• Component obsolescence issues
• Product specifications
• Product compliance work
• Product reliability improvements
• Component reliability issues (Failures attributed to component manufacture, product design issues, manufacturing issues).
• Alternative component approval including verification testing and ruggedness evaluation
• Existing product support issues
• Temporary electronic design/development engineer hire at “busy times” or fill in if any of your own design engineers leave or are temporarily off sick/away.
• Pick up the pieces of a project if your electronics design engineer leaves you “without a paddle”
• Full design “fit for purpose” reports on your electronic products. Advance warning of potential weaknesses/design issues which could cause failure returns or dangerous issues in the field.
• SMPS topology choice decisions.
• Analogue, digital and Power electronics design/development/troubleshooting.
• Design of transformers, inductors (chokes) for power conversion or filtering. Ferrite, powder, iron cored etc. Design down to individual “copper” and core geometry/type.
• Power electronics/Power supply education and training.
• Customer support issues.
• OEM , power supply/equipment sourcing and choice issues
• Design/development engineer recruitment personnel assessment reports. Vetting the suitability and capability of prospective design engineers/technicians your HR department are looking to recruit.
• Project management
• Expert witness consultation, reports and related services
• Electronic equipment diagnostics and repair

Mining

Armstrong, Keith

Smallwood, Jeremy

Taylor, David Adrian Walter

Yardley, Russell John

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