Correspondence on ‘Establishment of the MGI EDM calibration baseline’ by B. Bozic, H. Fan and Z. Milosavljevic

Survey Review ◽  
2013 ◽  
Vol 45 (333) ◽  
pp. 474-476 ◽  
Author(s):  
Jean M. Rüeger
Keyword(s):  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Nurul Fatahah Asyqin Zainal ◽  
Jean Marc Saiter ◽  
Suhaila Idayu Abdul Halim ◽  
Romain Lucas ◽  
Chin Han Chan

AbstractWe present an overview for the basic fundamental of thermal analysis, which is applicable for educational purposes, especially for lecturers at the universities, who may refer to the articles as the references to “teach” or to “lecture” to final year project students or young researchers who are working on their postgraduate projects. Description of basic instrumentation [i.e. differential scanning calorimetry (DSC) and thermogravimetry (TGA)] covers from what we should know about the instrument, calibration, baseline and samples’ signal. We also provide the step-by-step guides for the estimation of the glass transition temperature after DSC as well as examples and exercises are included, which are applicable for teaching activities. Glass transition temperature is an important property for commercial application of a polymeric material, e.g. packaging, automotive, etc. TGA is also highlighted where the analysis gives important thermal degradation information of a material to avoid sample decomposition during the DSC measurement. The step-by-step guides of the estimation of the activation energy after TGA based on Hoffman’s Arrhenius-like relationship are also provided.


2015 ◽  
Vol 51 (3) ◽  
pp. 505-514
Author(s):  
Arūnas Būga ◽  
Rosita Birvydienė ◽  
Ričardas Kolosovskis ◽  
Boleslovas Krikštaponis ◽  
Romuald Obuchovski ◽  
...  
Keyword(s):  

2017 ◽  
Vol 11 (2) ◽  
Author(s):  
Luis García-Asenjo ◽  
Sergio Baselga ◽  
Pascual Garrigues

AbstractA 330 m calibration baseline was established at the


Author(s):  
Arūnas Būga ◽  
Raimundas Putrimas ◽  
Dominykas Slikas ◽  
Jorma Jokela
Keyword(s):  

Author(s):  
Gokhan Arslan ◽  
Mehmet Emin Ayhan ◽  
Bandar Saleh Abdulkareem Al-Muslmani ◽  
Meshal Ahmad Saad Al-Qulaity ◽  
Sultan Falah Alzulrah Al-Shahrani

2019 ◽  
Vol 145 (4) ◽  
pp. 05019005
Author(s):  
Mladen Zrinjski ◽  
Đuro Barković ◽  
Sergej Baričević

2013 ◽  
Vol 39 (3) ◽  
pp. 138-143 ◽  
Author(s):  
Urtė Antanavičiūtė ◽  
Romuald Obuchovski ◽  
Eimuntas Kazimieras Paršeliūnas ◽  
M. G. Darius Popovas ◽  
Dominykas Šlikas

Some issues regarding the calibration results pertaining to the ground-based laser scanner Leica Scanstation C10 are presented and analysed. The calibration was carried out at Kyviškės Calibration Baseline (Jokela et al. 2002) and the special cyclic error detection baseline at the Research Institute of Geodesy of Vilnius Gediminas Technical University. The instrument was calibrated at 20, 100, 180, 200 and 260 m distances at Kyviškės Calibration Baseline and the indoors baseline from 1 to 15 m with continuous 1 m interval. The special procedure of indirect measurements was suggested to estimate errors of scanner measurements. During this procedure, the positions of the scanstation varied from the calibration baseline pillars to the standard tripods creating triangles of different shapes. The distances obtained by scanning targets placed on the calibration baseline pillars were compared with baseline standard distances. Suggested improvements in the calibration technology could be used for verification and calibration of terrestrial laser scanstations at the calibration baselines.


Author(s):  
Arunas Buga ◽  
Raimundas Putrimas

The authors of the paper are sharing their 20 years of experience in using Kyviškės Calibration Baseline. The Kyviškės Calibration Baseline (1320 m) is the longest calibration baseline in Lithuania. The baseline is calibrated regularly with 5–7 years period. The first time these measurements were performed in 1997 and repeated in 2001, 2007, 2008 and 2014. The same Kern Mekometer ME5000 EDM (electronic distance measurement) instrument was used for all the measurements performed. By building additional pillar aside from the baseline pillars the Kyvišk2s Baseline was converted to a triangle-shaped test field in 2000. The results confirm good stability of the baseline, which is now used for calibration of the EDM instruments, total stations and GNSS (global navigation satellite system) receivers.


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