hrcak mascot   Srce   HID

Izvorni znanstveni članak

Automation of Testing the Precision of Levels and Calibration of Invar Levelling Staves

Mladen Zrinjski   ORCID icon orcid.org/0000-0003-0834-6009 ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Đuro Barković   ORCID icon orcid.org/0000-0003-3382-253X ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Ivan Razumović   ORCID icon orcid.org/0000-0001-9126-8712 ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia

Puni tekst: hrvatski, pdf (4 MB) str. 279-296 preuzimanja: 1.381* citiraj
APA 6th Edition
Zrinjski, M., Barković, Đ. i Razumović, I. (2010). Automatizacija ispitivanja preciznosti nivelira i umjeravanja invarnih nivelmanskih letvi. Geodetski list, 64 (87) (4), 279-296. Preuzeto s https://hrcak.srce.hr/64685
MLA 8th Edition
Zrinjski, Mladen, et al. "Automatizacija ispitivanja preciznosti nivelira i umjeravanja invarnih nivelmanskih letvi." Geodetski list, vol. 64 (87), br. 4, 2010, str. 279-296. https://hrcak.srce.hr/64685. Citirano 22.01.2021.
Chicago 17th Edition
Zrinjski, Mladen, Đuro Barković i Ivan Razumović. "Automatizacija ispitivanja preciznosti nivelira i umjeravanja invarnih nivelmanskih letvi." Geodetski list 64 (87), br. 4 (2010): 279-296. https://hrcak.srce.hr/64685
Harvard
Zrinjski, M., Barković, Đ., i Razumović, I. (2010). 'Automatizacija ispitivanja preciznosti nivelira i umjeravanja invarnih nivelmanskih letvi', Geodetski list, 64 (87)(4), str. 279-296. Preuzeto s: https://hrcak.srce.hr/64685 (Datum pristupa: 22.01.2021.)
Vancouver
Zrinjski M, Barković Đ, Razumović I. Automatizacija ispitivanja preciznosti nivelira i umjeravanja invarnih nivelmanskih letvi. Geodetski list [Internet]. 2010 [pristupljeno 22.01.2021.];64 (87)(4):279-296. Dostupno na: https://hrcak.srce.hr/64685
IEEE
M. Zrinjski, Đ. Barković i I. Razumović, "Automatizacija ispitivanja preciznosti nivelira i umjeravanja invarnih nivelmanskih letvi", Geodetski list, vol.64 (87), br. 4, str. 279-296, 2010. [Online]. Dostupno na: https://hrcak.srce.hr/64685. [Citirano: 22.01.2021.]

Sažetak
The determination of heights by means of the method of geometric levelling belongs to the most precise geodetic measurements. In the paper there are all errors described influencing the measurements in geometric levelling. The procedure of testing the precision of levels according to the complete test of the standard HRN ISO 17123-2:2004 (HRN ISO 2004b) is described in details. For the purpose of testing the precision of levels according to this standard there has been the programme Nivelir_ISO developed. The errors that cannot be eliminated in field conditions are staff scale error, the error of irregularly defined staff scale and the error of determining the invar temperature coefficient. These errors can be determined only by testing and calibrating on the comparator in the Laboratory for Measurements and Measuring Techniques at the Faculty of Geodesy, University of Zagreb. The procedure of calibrating the invar levelling staves is carried out according to the standard HRN ISO 12858-1:2004 (HRN ISO 2004a). For the purpose of automating the calibration on the comparator the programme KOMPA has been developed. As the output result of calibrating the invar levelling staff we obtain the Comparison Report. The performed measurements in precise levelling of high accuracy have to be corrected for the values obtained by calibrating a pair of invar levelling staves on the comparator.

Ključne riječi
automation; precise level; comparator; incremental measuring system; calibration; invar levelling staff; measuring uncertainty

Hrčak ID: 64685

URI
https://hrcak.srce.hr/64685

[hrvatski]

Posjeta: 2.109 *