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Using Scilab in the
Radiation Thermometry Laboratory
of Inmetro (Lapir)
Mario A. P. Neto (maneto@inmetro.gov.br)
Ricardo S...
http://www.nist.gov/pml/wmd/metric/si-units.cfm
International System of Units (SI)
International System of Units (SI)
1967: The name kelvin, symbol K, was adopted instead of
“degree Kelvin”, symbol °K, and...
Examples of equations for primary thermometry
equation of state for
an ideal gas
Stefan-Boltzmann
equation
Fixed points of the ITS-90
Calibration at Lapir
Reference: contact thermometer
cavity radiation source
DMM
TC,
PRT
Scilab
Rad.
Therm.
cavity radiation source
DMMScilab
Transfer
Stand.
Rad.
Therm.
TC,
PRT
Calibration at Lapir
Reference: radiation thermometer
Realization of the ITS-90
fixed point cell
Scilab
Transfer
Stand.
cavity radiation source
DMM
TC,
PRT
New fixed point cells
Eutectic cell
Scilab
Transfer
Stand.
Scilab - GUIs
With This window we can:
- convert thermocouple emf to
Temperature and vice-versa;
- plot thermocouple curves
Scilab - GUIs
Standardized thermocouples:
functions and coefficients
into a new Scilab library,
thermo
Calibrated TC of La...
Scilab - GUIs
'
Scilab - GUIs
Scilab - GUIs
Scilab - GUIs
Scilab - GUIs
With this window we can evaluate
the temperature from:
- a photocurrent signal of the
thermometer detector;
...
Scilab - GUIs
answer
Scilab - GUIs
Data Acquisition
Rad. Therm.
Thermocouple
Rad. Therm.
DMM
GPIB ↔ USB
converter
Analog
output
Dig.
output
RS-232
USB
●
Hard...
Data Acquisition
Data Acquisition
Data Acquisition
In mind ...
●
Create a unified GUI
●
Add a Help menu
●
Update code from 5.3.3 to 5.5.2 or newer
●
A new atoms module
●
Add...
A little code
Credit of images
http://www.maniacworld.com/water-at-triple-point.html
http://images.all-free-download.com/images/graphicl...
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
ScilabTEC 2015 - Inmetro
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ScilabTEC 2015 - Inmetro

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"Using Scilab in the Radiation Thermometry Laboratory of Inmetro"
By Ricardo Sohn, Instituto Nacional de Metrologia, Qualidade e Tecnologia - Inmetro for ScilabTEC 2015

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ScilabTEC 2015 - Inmetro

  1. 1. Using Scilab in the Radiation Thermometry Laboratory of Inmetro (Lapir) Mario A. P. Neto (maneto@inmetro.gov.br) Ricardo S. T. M. Sohn (rsmoretz@inmetro.gov.br)
  2. 2. http://www.nist.gov/pml/wmd/metric/si-units.cfm International System of Units (SI)
  3. 3. International System of Units (SI) 1967: The name kelvin, symbol K, was adopted instead of “degree Kelvin”, symbol °K, and defined as “the fraction 1/273,16 of the thermodynamic temperature of the triple point of water”. 1954: The thermodynamic temperature scale was defined choosing the triple point of water as the fundamental fixed point, and assigning to it the temperature 273,16 degrees Kelvin, exactly. 1960: The name Système International d’Unités, with the abbreviation SI, was given to the system of units.
  4. 4. Examples of equations for primary thermometry equation of state for an ideal gas Stefan-Boltzmann equation
  5. 5. Fixed points of the ITS-90
  6. 6. Calibration at Lapir Reference: contact thermometer cavity radiation source DMM TC, PRT Scilab Rad. Therm.
  7. 7. cavity radiation source DMMScilab Transfer Stand. Rad. Therm. TC, PRT Calibration at Lapir Reference: radiation thermometer
  8. 8. Realization of the ITS-90 fixed point cell Scilab Transfer Stand. cavity radiation source DMM TC, PRT
  9. 9. New fixed point cells Eutectic cell Scilab Transfer Stand.
  10. 10. Scilab - GUIs With This window we can: - convert thermocouple emf to Temperature and vice-versa; - plot thermocouple curves
  11. 11. Scilab - GUIs Standardized thermocouples: functions and coefficients into a new Scilab library, thermo Calibrated TC of Lab: functions from thermo and coefficients into a worksheet
  12. 12. Scilab - GUIs '
  13. 13. Scilab - GUIs
  14. 14. Scilab - GUIs
  15. 15. Scilab - GUIs
  16. 16. Scilab - GUIs With this window we can evaluate the temperature from: - a photocurrent signal of the thermometer detector; - responsivity spectral data - reference signal and reference temperature etc.
  17. 17. Scilab - GUIs answer
  18. 18. Scilab - GUIs
  19. 19. Data Acquisition Rad. Therm. Thermocouple Rad. Therm. DMM GPIB ↔ USB converter Analog output Dig. output RS-232 USB ● Hardware from NI ● GPIB toolbox by Tibault Reveyrand ● Serial Comm. toolbox ● Modbus toobox
  20. 20. Data Acquisition
  21. 21. Data Acquisition
  22. 22. Data Acquisition
  23. 23. In mind ... ● Create a unified GUI ● Add a Help menu ● Update code from 5.3.3 to 5.5.2 or newer ● A new atoms module ● Add more languages
  24. 24. A little code
  25. 25. Credit of images http://www.maniacworld.com/water-at-triple-point.html http://images.all-free-download.com/images/graphiclarge/party_ helium_balloons_clip_art_25507.jpg http://www.bipm.org/utils/common/pdf/ITS-90/Guide- ITS-90-FixedPoints-RadiationThermometry-2015.pdf (adapted) Note: all images were accessed on May 20th, 2015

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