Temperature and humidity are quite important parameters in scientific and technological processes as well as everyday activities. Measurement and control of humidity is frequently the most important component for the achievement of high quality products, and maintenance of a healthy, secure environment.
Today temperature measurements can be performed with a surprisingly high accuracy and reliability. Measurements with uncertainty less than 1 mK (one-thousandth of a centigrade) are regular tasks for national laboratories. The insufficient control of environmental conditions, vibrations, electrical noise, and concessions made in the design of the system are the common sources of measurement errors and uncertainty in temperature measurements.
OBJECTIVES and TASKS
UME Temperature Standards Laboratory meets the needs of Turkish industry and scientific community for temperature calibrations and measurements in the range -200 °C - 2200 °C by establishing the national temperature standards traceable to International Temperature Scale, ITS-90. ITS-90 is defined by careful consideration of the availability of accurate and reproducible determination of temperature and in agreement with thermodynamic temperature as close as possible.
UME Temperature Standards Laboratory can perform dew-point measurements in -60 °C FP - 65 °C DP range, and relative humidity (RH) measurements of 11 %RH - 95 % RH in -8 °C - 68 °C range.
Primary goal of the laboratory is the establishment of the national temperature scale, transfer of the scale to secondary laboratories. The Laboratory participates in international comparisons to prove the equivalence of the national scale.
Temperature standards laboratory conducts research on measurement standards and techniques, performs improvements, and transfers generated know-how to the industry with periodical training courses.
All the laboratory activities are performed in the guidance of International Standard ISO/IEC 17025: General Requirement for the competence of testing and calibration laboratories.
CALIBRATION and MEASUREMENT SYSTEMS
UME Temperature Standards laboratory consists of 3 divisions, namely; Contact Thermometry Laboratory, Radiation Thermometry Laboratory, and Humidity Laboratory. Contact Thermometry Laboratory supplies calibration services for resistance thermometers, thermistors, thermocouples, and other kinds of contact sensors in the range -200 °C - 960 °C. Radiation Thermometry Laboratory supplies measurement and calibration services for radiation thermometers, blackbodies, and high stability tungsten lamps in the range from -40 °C to 2200 °C. In humidity laboratory dew-point measurements, relative humidity measurements, and special type temperature and humidity/moisture tests are performed.
International Temperature Scale 1990, ITS-90
Contact Thermometry Laboratory :
Temperature traceability in the range -200 °C - 960 °C is obtained by calibration of standard platinum resistance thermometers (SPRTs) at ITS-90 fixed-points. Temperature range is also extended up to 1200 °C using reference S-type, R-type or Pt/Pd thermocouples calibrated at high temperature fixed-points (up to the Cu point).
Fixed point
Temperature /°C
Manufacturer
Argon
-189.3442
TERMIS
Mercury
-38.8344
NPL
TPW
0.01
UME
Gallium
29.7646
ISOTECH
Indium
156.5985
NPL
Tin
231.928
UME
Zinc
419.527
UME
Aluminum
660.323
NPL
Silver
961.78
NPL
UME Contact Thermometry Laboratory Fixed-Points
Various liquid temperature baths are utilized for traceable calibration of industrial platinum resistance thermometers (IPRTs), thermometers with digital displays, thermistors, liquid-in-glass thermometers, and thermocouples.
Bath
Temperature range
Temperature uniformity / °C
Alcohol
-60 °C - 4 °C
±(0.002 - 0.005)
Water
4 °C - 90 °C
±(0.002 - 0.01)
Oil
80 °C - 250 °C
±(0.005 - 0.010)
Salt
200 °C - 550 °C
±(0.01 - 0.05)
UME Temperature Laboratory Liquid Baths
The industrial thermocouples are calibrated between the range -60 °C / 1100 °C by comparison with reference thermometers or thermocouples traceable to ITS-90 at liquid baths and three-zone furnaces.
SPRT kalibrasyonlarında kullanılan direnç köprüsü ve sabit nokta yapım düzeneği
Kontak Sıcaklık Laboratuvarı İzlenebilirlik (Traceability) Zinciri
UME Sıcaklık Laboratuvarı İzlenebilirlik Zinciri
Contact Thermometry Laboratory Research Areas:
UME Temperature Laboratory has been manufacturing water triple-point cells for nearly 10 years. Up to now various TPW cells has been supplied to many institutes. A few of these are;
· PTB - Germany (Quantity: 4)
· GUM - Poland (Quantity: 2)
· BIPM - France (Quantity: 2)
· BNM-INM - France (Quantity: 3)
· CMS - Taiwan (Quantity: 5)
UME also delivered TPW cells to local industrial calibration labs, such as TSE, S&Q Mart, Elimko, Metav , Aselsan (special size).
Construction of other ITS-90 fixed-point cells is also in progress. So far, Tin fixed-point has been manufactured and compared to existing cell. Also the construction process of zinc, aluminum and silver cells has been initiated. These cells are different from the existing ones: They are open cells. By comparing these cells with existing closed cells, the uncertainty components originating from impurities inside the cell, and pressure effects are assessed. Therefore, the uncertainty in UME ITS-90 scale is improved.
Miniature fixed points for thermocouple calibrations, and their respective furnaces are also being constructed in the laboratory. UME constructed R- and S-type reference thermocouples with less than 0.3 °C uncertainties. Investigation on the various construction parameters of constructed Pt/Pd thermocouples such as annealing temperature, mechanical strain, and extra relief wire is being carried out.
A comparison bath with ±5 mK temperature stability is being constructed. Also, a high-precision liquid bath is being constructed for UME reference resistances.
The measurement system for the surface temperature sensors is constructed.
In near future we plan to work on the establishment of the ITS-90 scale at cryogenic temperatures (below -200°C), acoustic thermometry and thermal conductivity measurements.
Radiation Thermometry Laboratory :
For temperatures above 960 °C, International Temperature Scale ITS-90 is defined making use of the Planck Radiation Law. Since this technique allows remote (no contact with the target) and relatively quick temperature measurements, it is widely used in iron-steel, textile, plastics, glass, paper, cement, food industries where the target cannot or should not be touched, and also in military and civilian surveillance applications as thermal imaging and night vision systems.
UME Radiation Thermometry Laboratory has established ITS-90 Radiation Temperature Scale above 960 °C. From temperatures -50 °C to 960 °C, the scale is obtained radiometrically.
UME fixed-point blackbody radiator and UME transfer standard pyrometer -TSP2
Radiation Thermometry Laboratory Research Areas:
There is ongoing research on improvement of ITS-90 Radiation Temperature Scale. For the maintenance of the scale, reference instruments are calibrated with fixed-point blackbody sources periodically. Besides, a measurement system is constructed in order to make linearity, spectral response, size-of-source effect measurements.
For the spectra-radiometric calibration of industrial variable temperature black bodies and emissivity measurements, a spectral radiance measurement system has been established. A Low-Temperature blackbody has been also constructed to operate in -50 °C - 80 °C range.
Our laboratory has also a high temperature blackbody radiator for radiance temperature measurements in the range 2400 °C - 3500 °C. Other than the extension of current temperature scale to 3500 °C, the system will be quite useful for UV radiometry measurements. By placing high-temperature metal-eutectic fixed-points inside the furnace, the uncertainty in the radiance temperature scale at high temperatures will be improved.
Measurement systems for the performance tests and characterization of thermal cameras and night-vision systems traceable to ITS-90 are are constructed.
In Radiation temperature scale, instead of one detector, a detector array having a wavelength range elliminates most of the practical comlications will be taken into consideration.
Humidity Laboratory :
Humidity is the content of the water vapor in air. Moisture is the water in liquid form, which present in solid materials or liquids. Measurement of humidity is difficult because of the extremely broad dynamic range, and different measurement conditions.
Humidity measurements are becoming sophisticated with the regulations of the FAA, FDA, EPA and with the increasing technology in the field of manufacturing sensors.
Humidity and moisture measurements are becoming more and more important in different fields in Turkey. Pharmaceutical, paper, food, cotton, and wood industry, research and measurement/calibration laboratories benefit from the services of the UME Humidity Laboratory. Using the UME two-pressure humidity generator, it is possible to calibrate hygrometers, dew-pint meters, thermographs, wet-dry-bulb aspirated psychrometers and moisture meters.
Laboratory can perform special tests using the Temperature and Climatic Test System. The test chamber has a volume of 1 m3 and maximum load of 150 kg. Temperature range of the chamber is -70°C to 180°C. Humidity control can be supplied only in +10°C to +95°C temperature range within the range 10% to 98% RH (relative humidity).
· Traceability in UME Humidity Laboratory
Traceability of the UME Humidity generator is obtained by calibrating its pressure, temperature and flow sensors against UME standards. UME Reference dew-point meter is also used to characterize the humidity generator.
UME Humidity Laboratory Traceability Chain
Humidity Laboratory Intercomparison Results
Hygrometer calibration at two-pressure humidity generator
Chart-recorder calibration in climatic test chamber
Humidity Laboratory Research Areas:
The construction of temperature and humidity chambers is in progress.
Temperature Standards Laboratory Intercomparison Results
In order to reveal the scale for consideration
Year
Intercomparison No and Name
Participants
Intercomparison Tools
Temperature/Relative Humidity Range
Description
1995
TPW
NIST
UME2, UME4
0,01 °C
Intercomparison of UME and NIST WTP cells resulted in an uncertainty of 0.06 mK.(Metrologia, 1996, 33)
1995
Sn
NIST
Sn88A
231.928 °C
Intercomparison of UME and NIST Sn cells resulted in an uncertainty of 0.35 mK. (Metrologia, 1996, 33 )
1997
TPW
EUROMET
UME4, UME6, UME13
0.01 °C
Intercomparison results published in the Metrologia 37 Vol 6
1997
TPW
NMi VSL
UME13
0.01 °C
Intercomparison of UME and NMi VSL WTP cells resulted in an uncertainty of 0.14 mK. (Document: UME/Nmi VSL Intercomparison 7.10.1997)
2000
TPW
BIPM
UME52
0.01 °C
UME WTP cell measured at BIPM. (CCT/2000-14)
2000
In
EUROMET
In 7/95
156.5985 °C
EUROMET In and UME In fixed-point cells was measured by using UME thermometers. Uncertainty of Thermometers was 0.40 mK. (8th Symposium on Temperature: Its Measurement and Control in Science and Industry, Oct 2002)
2000
EUROMET T-K5: Comparison of Local realizations of the ITS-90 btw the Silver point and 1700 ° C using vacuum tungsten-strip lamps as transfer standards
Circulating EUROMET lamps have been measured at predetermined current values temperature values assigned to the measured radiance according to UME Radiation Thermometry Scale. Values with necessary corrections and uncertainties associated with these values have been reported.
2000
EUROMET T-S511
Local Comparison of Humidity Generators
NPL, CMA, METAS, UME, GUM, MIKES,VNIIM, DELTA
-30 ° C - 60 ° C (Dew-Point)
Reference dew-point meter.
Predetermined dew-point values are generated by UME humidity generator. Values obtained from reference dew-point meter are reported. Results was published in Metrologia.
2001
Bilateral: Fixed-points btw. Argon and Zinc
PTB
Ar, Hg, H 2O, In, Ga, Sn, Zn
-189.3442 °C .. 419.527 °C
PTB thermometer was calibrated at UME fixed-point cells. Thermometer resistance ratio values at fixed-points was reported.. (8th Symposium on Temperature: Its Measurement and Control in Science and Industry, Ekim 2002) Draft report was published in 2004.
2001
EUROMET Project No 549
Comparison of Realizations of the Triple-Point of Water
Intercomparison results was published in Tempmeko 2004.
EUROMET
T-S13
Comparison of Local temperature scales with transfer infrared thermometers in the medium-temperature range. TRIRAT: Traceability in Infrared Radiation Thermometry.
Two infrared radiation thermometers and a zinc fixed-point blackbody
-150 ° C -8 00 ° C
Circulating thermometers have been calibrated against UME variable temperature blackbodies, and also against In, Sn, Zn, Al, Ag fixed-point blackbodies. Results with the corrections and uncertainties have been reported. Comparison result is to be presented in Temperature, Its Measurement and Control in Science and Industry - 2002.
Measurements has been taken in 2005. Comparison measurements of other institutes is going on.
PUBLICATION LIST
SCI Publications:
1996: “Comparisons of Some NIST Fixed-point Cells with Similar Cells of other Standards Laboratories" Magnum B.W., Pfeiffer E.R., Strouse G.F., Valencia-Rodriquez J., Lin J.H., Yeh T.I., Marcarino P., Dematteis R., Liu Y., Zhao Q., İnce A.T., Çakıroğlu F., Nubbemeyer H.G., Jung H.J.
Metrologia,33,(1996), pp 215
2000: “International Comparison Interlaboratory comparison of realizations of the triple point of water EUROMET 278", E. Renaot, M. Elgourdou and G. Bonnier, National Metrology Institute (UME) Turkey A. T. Ince, A. Kartal
Metrologia, 2000, 37, 693-699
2002: “Radiation temperature scales between the indium and silver points realized at IMGC, NPL and UME using a fixed-point calibration technique" T Ricolfi, M Battuello, FGirard, G Machin, H McEvoy, S Ugur and A Diril
Meas. Sci. Technol. 13 (2002) 2090-2093
International Conferences
1996: “Construction of Home-Made Water Triple Point Cells and Their Intercomparison With Other National Laboratories" İnce A., Kartal Aliye, Başyiğit U.
TEMPMEKO 96 Symposium, September 10-12, Torino - Italy
1996: “Investigation of Using Spectrocolorimeter As a Transfer Standard Pyrometer Above 1000 C." Uğur S., Oğuz S.
TEMPMEKO 96 Symposium, September 10-12, Torino - Italy, pp. 291
1996: “Investigation of Noise Sources Which May Adversly Affect Temperature Measurements At Fixed Points Defined by Internatioanal Temperature Scale 1990 (ITS 90)", İnce A., Kuyrukluyıldız A.,
TEMPMEKO 96 Symposium, September 10-12, Torino - Italy
1997: “Realization of Home Made Water Triple Point Measurements Using Immersion Cooler & Dry Ice Methods & Their Respective Differences" İnce A., Kartal A.
XIV. IMEKO World Congress, 1-6 June 1997, Tampere, Finland
1998: “Interference Effects on the Spectroscopic Measurement of Radiation Temperature" Uğur S., Oğuz S.
CPEM?98, July 5-10 1998, Washington DC, USA
1998: “High Resolution & High Precision Current Control System for the High Stability Tungsten Ribbon Lamps" Uğur S., Oğuz S.
IMEKO, TC-4 10th ISDDMI?98, September 17-18, Naples-Italy
1999: “Establishing the ITS-90 radiation temperature scale at UME." Uğur S., Oğuz S., Aytekin H. S.
IMEKO XV. World Congress, June 13-18, Osaka, Japan
1999: “Investigation of commercial OMA system for temperature measurements" Uğur S., Oğuz S., Aytekin S.
Proceedings of TEMPKO?99, The 7th International Syposium on Temperature and Thermal Measurements in Industry and Science. Edited by J.F. Dubbeldam Vol.2, pp.643
1999: “UME measurement system for high stability tungsten ribbon lamps" Uğur S., Oğuz S., Aytekin S.
Proceedings of TEMPKO?99, The 7th International Syposium on Temperature and Thermal Measurements in Industry and Science. Edited by J.F. Dubbeldam Vol.2, pp.732
1999: “Realization of Tin and Zinc Fixed points at National Metrology Institute (UME) in Turkey" Uğur S.,Doğan A.,Bahçe A.
Proceedings of TEMPKO?99, The 7th International Syposium on Temperature and Thermal Measurements in Industry and Science. Edited by J.F. Dubbeldam Vol.2, pp.615
1999: “Dual band radiation thermometer for realization of the ITS-90 between 600 and 2500 C" Mekhonsev S. N., Uğur S., Samoilov M. L., Aytekin S.
TEMPMEKO 99
2000: “Spectral system for the On-Site characterization of a variable temperature blackbody" Uğur S., Oğuz S.
XVI. IMEKO World Congress, September 24-29, Austria
2001: “Construction of Tin fixed point cell" Doğan A. K., Uğur S.
TEMPMEKO 2001, 18-22 June, Berlin
2001: “UME Argon triple point system" Kalemci M., Uğur S.
TEMPMEKO 2001, 18-22 June, Berlin
2001: “Measurements of spectral responsivity at IMGC (Italy) and UME. A bi-lateral comparison." Battuello M., Girard F., Uğur S., Aytekin S. H.
TEMPMEKO 2001, 18-22 June, Berlin
2001: “Calculating the uncertainty in the reference signal at the silver fixed point for radiance temperature measurements" Uğur S., Diril A.
TEMPMEKO 2001, 18-22 June, Berlin
2002: “UME Radiation Thermometer Calibration Facilities Below The Freezing Point Of Silver (961.78 °C)" Diril A., Nasibov H., Uğur S.
Proceedings of the The 8 th Symposium on TEMPERATURE: Its measurement and Control in Science and Industry, 21-24 Oct. 2002
2002: “Uncertainty Budgets for Realization of ITS-90 by Radiation Thermometry" Joachim Fischer, Mauro Battuello, Mohamed Sadli, Mark Ballico, Seung Nam Park, Peter Saunders, Yuan Zundong, B. Carol Johnson, Eric van der Ham,Fumihiro Sakuma, Graham Machin, Nigel Fox, Wang Li, S. Ugur, Mikhail Matveyev
Proceedings of the The 8th Symposium on TEMPERATURE: Its measurement and Control in Science and Industry, 21-24 Oct. 2002.
2002: “The European Project TRIRAT: Arrangements for and Results of the Comparison of
Local Temperature Scales With Transfer Infrared Thermometers Between 150 °C and 962 °C" M. Battuello1, F. Girard1, T. Ricolfi1, M. Sadli, P. Ridoux, O. Enouf3, J. Pérez, V. Chimenti,T. Wekström, O. Struss, E. Filipe, N. Machado, E. van der Ham, G. Machin, H. Mc Evoy, B. Gutschwager, J. Fischer, V. Schmidt, S. Clausen, J. Ivarsson, S. Ugur, A. Diril
Proceedings of the The 8 th Symposium on TEMPERATURE: Its measurement and Control in Science and Industry, 21-24 Oct. 2002.
2002: “Characterization of the UME Two-Pressure Humidity Generator" Ugur S., Uytun A.
Proceedings of the 4th International Symposium on Humidity and Moisture, pp. 10-17
2002: “A Bilateral Comparison Between UME and PTB" Kalemci M., Kartal Doğan A., U. Sevilay, , Noatsch U., Tegeler E., ThieleKrivoj B.
Proceedings of the The 8 th Symposium on TEMPERATURE: Its measurement and Control in Science and Industry, 21-24 Oct. 2002.
2003: “Characterization of the Pyrometers to the Subject of Preamplifier Gain Non-Linearity" Humbat Nasibov, Sevilay Ugur
XVII IMEKO World Congress June 22 -27, 2003, Dubrovnik, Croatia
2003: “Calibrating Commercial Radiation Thermometers against Fixed Point Blackbodies"
Sevilay Ugur, Humbat Nasibov
XVII IMEKO World Congress June 22-27, 2003, Dubrovnik, Croatia
2003: “Construction And Characterisation Of The Ume Made Water Triple Point Cells" Ali Uytun, Aliye Kartal Dogan and Sevilay Ugur
XVII IMEKO World Congress June 22-27, 2003, Dubrovnik, Croatia
2003: “The Construction and Characterization of Platinum-Based Thermocouples at UME", Kalemci, M, Ugur S.,
XVII IMEKO World Congress, 2003, Dubrovnik, Croatia
2003: “Realization of Argon, Mercury and Water Triple Points at UME", Kalemci M.,Ugur S.,
PLTS Conference, Wroclaw, Poland
2004: “Interlaboratory Comparison of Reference Surface Temperature Apparatus at NMIs"
Emese András, Magda Kemper, Ronan Morice, Mathias Wagner, Carmen García, Vicente Chimenti, Thua Weckström, Martin de Groot, Jan Ivarsson, Roland Falk, Jovan Bojkovski, Alev Derelioglu, Murat Kalemci, Hans Liedberg
Tempmeko 2004, Dubrovnik, Croatia
2004: “Comparison of Realizations of the Triple-Point of Water (Euromet Project No 549)"
E. Renaot, M. H. Valin, G. Bonnier, M.White, A.Van Der Linden, G. Bairy, T. Kovacs, S. Németh, J. Bojkovski, R. Kuna, T. Weckström, J. Ivarsson, C. Rauta, F. Helgesen, A. Uytun, S. Ugur, J.Kryl, F. Adunka, J. Ranostaj, S. Duris, M. Anagnostou, E. Kokkini, A. Pauza, V. Augevicius
Tempmeko 2004, Dubrovnik, Croatia.
2004: “Measurements of Humidity Standards at UME (Turkey) and at IMGC-CNR (Italy). A Bilateral Comparison." Sevilay Uğur, Ali Uytun, Vito C. Fernicola, Mauro Banfo
Tempmeko 2004, Dubrovnik, Croatia.
2004: “Uncertainty Budgets for SPRT Calibrations at the Defining Fixed Points" G. Bonnier, A. Diril, M. Arai, M. Ballico, V. Chimenti, S. Duris, E. Filipe, A. Ivanova, A. Kartal Dogan, E. Mendez-Lango, C. Meyer, F. Pavese, A. Peruzzi, E. Renaot, J. Seidel, M. Stock, S. Ugur, D.R. White
Tempmeko 2004, Dubrovnik, Croatia.
2004: “Intercomparison of Argon Triple-Point Cells in the Frame of Euromet Project No. 502" Y. Hermier, G. Bonnier, V. Chimenti, D del Campo, E. Grudniewicz , P. Marcarino, P. Steur, E. Filipe, I. Lobo, N. Machado, C. Rauta, F. Helgesen, A. Bergerud, A. Steiner, T. Weckström, J. Bojkovski, D.I. Head, S Bruce, R. Rusby, B. Fellmuth, B. Thiele-Krivoj, J. Ivarsson, M. Kalemci, S. Ugur.
Tempmeko 2004, Dubrovnik, Croatia.
National Conferences
1995: “Ulusal Metroloji Enstitüsü'nde (UME) Yapılan Suyun Üçlü Noktası Hücrelerinin İngiltere (NPL), ve Amerika'daki (NIST) Ulusal Metroloji Kuruluşlarıyla Karşılaştırılması ve Yeni Ulusal Sabit Noktaların Yapımı" İnce A. T.
1. Ölçümbilim Kongresi, Eskişehir, Eylül 1995
1995: “Termodinamik Sıcaklık Birimi Kelvin (K) ve 1990 Uluslararası Sıcaklık Ölçeği (ITS-90)" Uğur S., İnce A. T.
1. Ölçümbilim Kongresi, Eskişehir, Eylül 1995
1995: “234.3156K ile 692.677K Sıcaklık Aralığında Standart Platin Direnç Termometrelerin Uluslararası Sıcaklık Ölçeğine (ITS-90) Göre Kalibrasyonlarının Gerçekleştirilmesi" Aşık A., Uğur S., İnce A. T.
1. Ölçümbilim Kongresi, Eskişehir, Eylül 1995
1995: “Suyun Üçlü Nokta Hücresinin UME'de Yapılışı" Çakıroğlu F., Aşık A., Uğur S., İnce A. T.
1. Ölçümbilim Kongresi, Eskişehir, Eylül 1995
1997: “ITS-90 Işınım (Radyasyon) Sıcaklığı Ölçeği ve UME’de İzlenebilirlik" Uğur S., Oğuz S., Dumlu M.Ö.
2. Ulusal Ölçüm Bilim Kongresi, Eskişehir, 23-24 Ekim 1997
1997: “Işınım (Radyasyon) Termometri" Uğur S., Oğuz S.
2. Ulusal Ölçüm Bilim Kongresi, Eskişehir, 23-24 Ekim 1997
1997: “Isılçiftlerin Karşılaştırmalı Metoda Göre Kalibrasyonları" Kuyrukluyıldız A., Kartal A., İnce A. T.
2. Ulusal Ölçüm Bilim Kongresi, Eskişehir, 23-24 Ekim 1997
1997: “Uluslararası Sıcaklık Ölçeği 1990 (ITS-90)’a Göre Karşılaştırmalı Kalibrasyonlarının Yapılması" Kuyrukluyıldız A., İnce A. T.
2. Ulusal Ölçüm Bilim Kongresi, Eskişehir, 23-24 Ekim 1997
1997: Uluslararası Sıcaklık Ölçeği 1990 (ITS-90)’nın Ulusal Metroloji Enstitüsü’nde (UME) Gerçekleştirilmesi ve Muhafazası" İnce A. T., Kartal A.
2. Ulusal Ölçüm Bilim Kongresi, Eskişehir, 23-24 Ekim 1997
1999: “UME Radyasyon Sıcaklığı Laboratuvarı tarafından şişecam araştırma merkezinde gerçekleştirilen yerinde kalibrasyon ve sonuçları"Oğuz S., Uğur S., Aytekin S.
III. Ulusal Ölçüm Bilim Kongresi, 7-8 Ekim 1999 Eskişehir
1999: Ulusal Metroloji Laboratuvarlarının karşılıklı tanınma anlaşması, “Mutual Recognition Agreement" (MRA)" Uğur S.
III. Ulusal Ölçüm Bilim Kongresi, 7-8 Ekim 1999 Eskişehir
1999: “UME ile PTB arasinda yapilan kalay ve çinko sabit noktalarının karşılaştırmaları" Doğan A. K., Uğur S., Bahçe A. ve Heyer D.
III. Ulusal Ölçüm Bilim Kongresi, 7-8 Ekim 1999 Eskişehir
1999: “Sıvı-cam termometreler" Doğan A. K., Uytun A., Abacıoğlu U.
III. Ulusal Ölçüm Bilim Kongresi, 7-8 Ekim 1999 Eskişehir
2000: “UME’de siyah cisim kalibrasyonları" Diril A., Uğur S.
2. Ulusal Elektro-optik toplantısı, Koç Üniversitesi.
2001: “UME'nin katıldığı uluslararası karşılaştırmalar" Uğur S.
Eskişehir IV. Ulusal Ölçüm Bilim Kongresi, 25-26 Ekim 2001
2003: “InGaAs Detektör Temelli Işınım Termometresi", Humbat Nasibov, Sevilay Uğur
5. Ulusal Elektro-optik toplantısı, Orta Doğu Teknik Üniversitesi.
2003: “Optik Işınım Termometresi için İnterpolasyon Eşitliği" Humbat Nasibov, Özlem Pehlivan, Sevilay Uğur
5. Ulusal Elektro-optik toplantısı, Orta Doğu Teknik Üniversitesi.
