Charles Curry B'Eng Hons, FIET

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Where Science Meets Engineering Technology Teac
hers Engineering Science Education
Forum University of Bath 4th July 2007
Charles Curry B.Eng (Hons), FIET Founder
Managing Director Chronos Technology Ltd
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Chronos Divisions
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Customers
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Value Added Services - Turnkey Solutions

• Consultancy
• Site Surveys
• Installation
• Commissioning

• Security Clearance
• Climbing Certification
• Electrical Certification
• Health Safety Awareness

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Science meets Engineering

• c ???
• Speed of Light
• 3 x 108 km/sec
• 299,792,458 m/sec
• How far does light travel in 1 nsec?
• ms, µs, ns, ps, fs.
• Equations with c?
• cf? or c??
• Emc2

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Science Engineering working together

• Chemistry
• Physics
• Maths
• Biology

• Elements Materials
• Electromagnetism
• Time Time Interval
• Geolocation
• Careers

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Elements Materials
What Elements are in a mobile phone or network?

• Carbon
• Lithium
• Iron
• Gold
• Silver
• Copper
• Tin
• Caesium
• Rubidium
• Quartz
• Silicon
• Gallium
• Arsenic

• Plastic
• Rubber
• LCDs
• LEDs

• New RoHS Directive bans
• Cadmium
• Lead
• Mercury
• Chromium

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Electromagnetism

• fundamental enabling technology
• enables communication
• can be dangerous!
• a little knowledge is dangerous!
• biological impact of signals?
• famous names
• Faraday, Bell, Newton, Watt, Fleming
• Hertz, Ampere, Voltaire
• MHz not Mhz!
• important equation
• c f?
• speed of light frequency x wavelength

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The Electromagnetic Spectrum
c f?
Microwave Oven
Cosmic Rays
Infra Red
Ultra Violet
Radio Waves
Gamma Rays
Microwaves
X-Rays
Visible Light
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The Electromagnetic Spectrum
c f?
Microwave Oven
Cosmic Rays
Infra Red
Ultra Violet
Radio Waves
Gamma Rays
Microwaves
X-Rays
Visible Light
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Time Time Interval

• time
• electronic, electrical mechanical clocks
• atomic clocks, quartz resonators
• fundamental utility
• enables electromagnetic spectrum stability
• enables location positioning
• enables complex communications
• time interval
• rate of change of time
• enables definition of frequency stability
• can be measured very accurately psec
• important equation
• ?fTIE/t
• frequency error time interval error/time

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Atomic Clocks Cs Rb

• Cs more accurate than Rb
• Cs 9,192,631,770 GHz
• Rb 6,384,682,612.8 GHz
• Cs Accurate to parts in 10-12

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Accurate Clocks
Caesium Atomic Clock
Strontium Ion Clock
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Geolocation
?
?
?
?
?
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Recognising Future Engineers

• we build things
• we break things!
• we are resourceful
• we enjoy arithmetic
• we make things work
• we are practical
• we are pragmatic
• we take the lid off
• we dont read instructions!

• insecure
• need to know how things work
• short attention span
• play with new toys
• loners
• nerdy
• rush things
• poor spellers

• we dont enjoy biology
• we dont enjoy chemistry
• we cant spell ingineer
• we dont suffer fools gladly
• we dont like pointless activities
• we cant be told what to do!

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Careers for Future Engineers

• electronics
• computers
• communications
• software/firmware
• electrical
• civil
• structural
• mechanical

If the Romans had discovered electricity .?
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Travel last 12 Months

• Barcelona Sales Conf Symmetricom
• Prague ITSF Chaired conference
• Fort Worth, Texas ION - Delegate
• Boulder, Colorado WSTS - Papers
• Reeuwijk, The Netherlands - Collaboration
• San Jose, California Symmetricom Supplier
• Stockholm Won major contract Teracom
• Paris FP7 Grant Consortium Meeting
• Geneva TimeNav07 Papers
• Geneva ITU SG15/Q13 Meeting
• Brussels Bidding Contract

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our engineers are our future nurture
them! please email me for a copy of this
talk charles.curry_at_chronos.co.uk www.chronos.co.
uk www.gps-world.biz Thank You