Sirvi Autor "Ansko, Ilmar" järgi

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Arvutijuhitavad mõõtesüsteemid spektroskoopia praktikumile
(2005) Ansko, Ilmar; Rammo, Ilmar, juhendaja
Uncertainty of the optical spectral transmittance
(Tartu Ülikool, 2023) Chehreghan, Zeinab; Ansko, Ilmar; Tartu Ülikool. Loodus- ja täppisteaduste valdkond
Determination of the optical filter spectral transmittance takes place at Tartu Observatory and is one of the accredited methods of the Tartu University Testing Centre. Comprehensive characterization of the measurement setup forms the experimental part of this master thesis. The measurement principles, instrumentation, and techniques are described in detail. In conclusion, the uncertainty contributions were quantified, and recommendations were given in order to improve the measurement setup. The thesis can be used as step-bystep instructions when reproducing the characterization of similar systems.
Validating the pyroelectric radiometer
(Tartu Ülikool, 2021) Duong, Thi Kim Ngan; Ansko, Ilmar; Tartu Ülikool. Loodus- ja täppisteaduste valdkond
This master’s thesis describes the in-lab validation of the electrically calibrated pyroelectric radiometer (ECPR). The ECPR was inter-compared with two reflection-type trap detectors, a FEL lamp, and an absolute electrical substitution pyrheliometer. All the instruments have valid calibration certificates. The measurement methods, uncertainty analysis, and results are presented. The �� numbers in all cases were satisfying.