Proveden

1
Experimental methods E181101
EXM1
2012 Summer semester
General information about course, Projects
Remark foils with black background could be
skipped, they are aimed to the more advanced
courses
Rudolf Žitný, Ústav procesní a zpracovatelské
techniky CVUT FS 2010
2
Experimental methods E181101 22
(LecturesTutorials), Exam, 4 credits, Thusdays
900, room 425
EXM1

• Lectures Prof.Ing.Rudolf Žitný, CSc.
• Tutorials Žitný
• Evaluation 30(test)40(projects)30(oral
  discussion) points

A B C D E F
90 80 70 60 50 ..49
Summary How to measure temperature
(thermocouples, thermistors, optical fibres,
radiation thermometers), pressure transducers
(and strain gauges), displacement and deformation
(inductive probes, optical, cross correlation
using multiple camera systems), flowrate
(nozzles, turbines, electromagnetic, ultrasound,
Coriolis forces). Material properties
measurement rheometry (rotational and capillary
viscometers) and elastic biomaterials
(constitutive equations of e.g. vascular tissues
and plastic materials). Real instruments are
demonstrated during lectures and of course at
laboratory experiments. How to transfer and
record data in PC. Interfaces and software
(Labview). Data processing and basic
statistics. Evaluation of standard deviation of
predicted quantities knowing errors of individual
measurements (e.g. evaluate error of viscosity
knowing error of measured rotational speed and
torque of rotational rheometer). Analysis of
measuring chains. Regression analysis of
recorded data (identification of mathematical
models). Linear regression (orthogonal
polynomials, estimate of errors and reliability
intervals of identified parameters). How to
linearize some engineering correlations.
Calibration of multiple thermocouples and
pressure transducers. Nonlinear methods
(deterministic Marquardt Levenberg, simplex
methods, and stochastic methods of artificial
intelligence SOMA-self organizing mitigation
algorithm). Time courses processing. Integral
characteristics of time responses. Moments of
responses (mean response time and variance).
Relationship between stimulus and response
functions (convolution, transfer function).
Laplace and Fourier transform of convolution and
correlation, power spectral density. Discrete
transforms (Nyquist frequency). How to smooth out
a noise (local regression, median smoothing,
Fourier filtering).
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Experimental methods E181101
EXM1
Students according to database KOS
For more information about the EXM course look at
my web pages http//www.fsid.cvut.cz/zitnyrud/
or to the moodle system of prezentations
http//moodle.fs.cvut.cz
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LITERATURE
EXM1

• Books
• Press W. et al Numerical Recipes J.WileySons,
  N.Y., 1994
• Database of scientific articles
• You (students of CTU) have direct access to full
  texts of thousands of papers, available at
• knihovny.cvut.cz

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DATABASE selection
EXM1
You can find out qualification of your teacher
(the things he is really doing and what he
knows)
The most important journals for technology (full
texts if pdf format)
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SCIENCE DIRECT example
EXM1
Specify topic by keywords (in a similar way like
in google project syringe)
Title of paper is usually sufficient guide for
selection.
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SCIENCE DIRECT example
EXM1
Specify topic by keywords (project inflation test)
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PROJECTS
EXM1
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PROJECT
EXM1
Viscometer syringe
Advisor Zitny
Tested liquid (water, milk)
Piston with pressure transducer time course of
pressure drop during displacement of tested
liquid is measured
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PROJECTS
EXM1
Hydraulics resistances and RTD are not prepared
yet (but you could select them for example as a
diploma project)
Advisor Chlup, Zitny