Acta Montanistica Slovaca Ro?ník 14 (2009), mimoriadne ?íslo 1, 69-74 69 Testing of the accuracy of Leica TCRP 1201 total stations, Topcon GPT-7001 and Topcon GPT-8203M Jana Mazalová 1 , Kate?ina Valentová 2 a Lenka Vl?ková 3 Ově?ování totálních stanic Leica TPC 1200, Topcon GPT-7001 a Topcon GPT-8203M The Institute of Geodesy and Mine Surveying VŠB-TU Ostrava bought new total stations – TCRP 1201 made by Leica, GPT- 7001 by Topcon and GPT-8303M by Topcon. TCRP 1201 is a motorized total station extended by GPS – SmartStation. GPT 7001 is a total station with a pulse rangefinder. The GPT-8203M motorized total station also has a pulse rangefinder and it is possible to use it as a 3D scanner. Among others, each of these total stations enables non-prism measuring. It is common to test whether a new geodetic apparatus meets characteristics declared by the manufacturer before it is introduced into everyday usage. The testing of geodetics apparatus procedures on IGMD are proceeded in such a way they correspond with the CSN ISO 17123 standards. Besides these standard procedures the tests were extended by non-prismatic measuring properties testing. Key words: Total station, testing of accuracy, Leica TCRP 1201, Topcon GPT-7001, Topcon GPT-8203M. Introduction The calibration of the geodetic apparatus is nowadays viewed as common. It is recommended to test it as soon as the new apparatus has been purchased, as it is necessary to find out whether the apparatus meets the parameters declared by the manufacturer. It is also necessary to test it at regular intervals (during the period of two or three years), after it has been repaired, or if any deviation has been found during the process of measuring. This paper deals with the calibration of three new total stations, that is TCRP 1201 by Leica, GPT 7001, and GPT 8203 by Topcon, which were recently bought by the institute of Geodesy and Mine Surveying, VSB-TU Ostrava. The research of total stations’ accuracy without the use of reflecting prism on the surface of various colours is specifically presented in this paper. The accuracy of the apparatus The GPT 7001 total station has the manufacturer’s declared accuracy of 0,3mgon. It is equipped with a laser pulse rangefinder, which enables distance measurement in prism as well as non-prism mode. The apparatus has a built-in graphic touch screen. The total stations of the GPT-8203M series are monitorized, with the angle accuracy of 1mgon. For distance measuring it is equipped with prism, non-prism and a long non-prism mode, which enables non-prism distance measuring up to the distance of 1200 metres. It is also equipped with a scanning system. The TCRP 1201 monitored total station has the accuracy of angle measurement of 0,3 mgon, it is equipped with a rangefinder which works in infrared as well as the visible spectrum. It is also equipped with GPS – SmartStation. The range of the non-prism angle measurement is declared to be 400 metres. It is also equipped with a touch screen. The testing of the apparatus was done straight after the purchase and before its introduction into everyday use. Testing the accuracy All three apparatus were tested in order to verify the manufacturer’s declared angle measurements and distance accuracy. The verifying angle measurement accuracy tests were done in a calibration laboratory of the Institute of Geodesy and Mine Surveying (further as IGDM). The testing of distance measurement accuracy in a prism as well as in non-prism mode was done on the IGDM rangefinder base in Ostrava – Krasne Pole. The base with the length of 250,620 metres is divided into 6 sections with unequal length. It is fixed by concrete pillars with the depth of 130 cm, and the diameter of 70 cm at the pillar’s foundation. 1 doc. RNDr., Jana Mazalová, CSc., VŠB-TU Ostrava, Hornicko-geologická fakulta, Institut geodézie a d?lního mě?ictví, 17.listopadu 15, 708 33 Ostrava- Poruba, jana.mazalova@vsb.cz 2 , Ing. Kate?ina Valentová, VŠB-TU Ostrava, Hornicko-geologická fakulta, Institut geodézie a d?lního mě?ictví, 17.listopadu 15, 708 33 Ostrava- Poruba, katerina.valentova.st@vsb.cz 3 Ing. Lenka Vl?ková, VŠB-TU Ostrava, Hornicko-geologická fakulta, Institut geodézie a d?lního mě?ictví, 17.listopadu 15, 708 33 Ostrava- Poruba, lenka.vlckova.st2@vsb.cz (Reviewed and revised version 3. 11. 2009)
