a c b Lars Baath Lars Baath Functional Functional Surfaces/MTEK Surfaces/MTEK Halmstad University Halmstad University Car engine vs. quasar car engine quasar diameter 10 -12 AU 300 AU mass 10 -27 M o 10 9 M o power 10 4 -10 5 W 10 42 W generated temperature 10 2 -10 3 K 10 4 K kinetic 10 12 K radiation life time 20-40 years 10 7 - 10 9 years distance 10 -17 pc 10 9 pc (1 pc = 4 light-minutes = 3x11 18 cm; 1 AU = 10 13 cm; 1 M o = 2x10 33 g)
Transcript
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c
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Lars BaathLars BaathFunctional Functional
Surfaces/MTEKSurfaces/MTEKHalmstad UniversityHalmstad University
Car engine vs. quasarcar engine quasar
diameter 10-12 AU 300 AUmass 10-27 Mo 109 Mopower 104 -105 W 1042 W generatedtemperature 102-103 K 104 K kinetic
1012 K radiationlife time 20-40 years 107 - 109 yearsdistance 10-17 pc 109 pc
(1 pc = 4 light-minutes = 3x1118 cm; 1 AU = 1013 cm; 1 Mo = 2x1033 g)
Trollhättan 2011 MTEKArea of interestArea of interest
RingLiner
Piston ring-cylinder liner interaction
Trollhättan 2011 MTEK
Characterization (Zlate Dimkovski, MTEK)
Trollhättan 2011 MTEK
Interference measurements for studying friction and wear (Zlate Dimkovski, MTEK)
Different wear regimes along the stroke of the cylinder liners in internal combustion engines.
Stitching in a commercial interferome
Trollhättan 2011 MTEK
Aims:
1.Measure liner designed surface structure;2.non-destructive (cylinder to be run again);3.in-situ; 4.in lab: full liner in cylinder (high accuracy);5.at factory for quality control (faster and robuster)
Trollhättan 2011 MTEK
Scale...Scale...
Cyg A 1025 m
Quasar 1018 m
Quasar core 1014 m
Galaxy super cluster 1028 m
Orion 1013 m
Earth-Sun 1011 m
Cosmologic scaleCosmologic scale
Galactic scaleGalactic scale
Trollhättan 2011 MTEK
Chicago from 10km
Ground from 1km
Lake Michigan from 1000 km altitudeEarth-Moon 4 109 m
Planetary scalePlanetary scale
Global scaleGlobal scale
Regional scaleRegional scale
Scale...Scale...
Trollhättan 2011 MTEK
Ground from 100m
From 10m
From 1m
At 10cm the skin pores show a new Universe
Local scaleLocal scale
Human scaleHuman scale
Scale...Scale...
Trollhättan 2011 MTEK
Extermely small details are visible at 100x increased resolution.
At 1000x resolution a single white blood cell is visible.
At 1000 000x resolution we can study the DNA-spiral structure.
At 1cm the eye can no longer interpret the image.
Microscopic scaleMicroscopic scale
Molecular scaleMolecular scale
Scale...Scale...
Trollhättan 2011 MTEK
We have just made a journey We have just made a journey from 10from 102828 m to 10m to 10--99 m orm or
10 10 3737 times in linear scale!times in linear scale!
Technology exists.BUT choice of:
Resolution:Dynamic range:FidelitySpeed
Trollhättan 2011 MTEK
Trollhättan 2011 MTEK
Trollhättan 2011 MTEK
The measurement technology is NOT the problem!
Problems are:
•Access•Instrument vehicle•Geometry•Speed
Trollhättan 2011 MTEK
Trollhättan 2011 MTEK
The measurement technology is NOT the problem!
Problems are:
•Access = size= size•Instrument vehicle = weight= weight•Geometry = interferometer/point= interferometer/point•Speed = area interferometer= area interferometer
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