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Index Geophysics

Automatizacija mjerenja atmosferskih parametara pri preciznom mjerenju duljina

Item

Title (Dublin Core)

hrv Automatizacija mjerenja atmosferskih parametara pri preciznom mjerenju duljina
eng Automation of the Measurement of Atmospheric Parameters in Precise Distance Measurement

Description (Dublin Core)

hrv U radu je prikazano automatizirano mjerenje atmosferskih parametara pomoću dva senzora Väisälä WXT510 i notebook računala, u svrhu preciznih mjerenja duljina na kalibracijskoj bazi Geodetskog fakulteta Sveučilišta u Zagrebu. Za vrijeme preciznih mjerenja duljina vrlo je važno što točnije izmjeriti atmosferske parametre: temperaturu, tlak i relativnu vlažnost zraka. Pogreška u mjerenju temperature od 1 °C uzrokuje pogrešku u mjerenoj duljini od 1 mm na 1000 m. Stoga je za precizno mjerenje duljina temperaturu potrebno mjeriti s točnošću od ±0,1 °C. U tu je svrhu, da bi se što točnije mogli izmjeriti atmosferski parametri, razvijena automatizacija zapisa atmosferskih parametara, izmjerenih s pomoću senzora Väisälä. Ispitivanjima u Laboratoriju za mjerenja i mjernu tehniku Geodetskog fakulteta utvrđeno je da nakon priključivanja električnog napona na senzor Väisälä treba pričekati približno 70 minuta da se on stabilizira. Na kalibracijskoj bazi Geodetskog fakulteta utvrđeno je da radi točnijeg mjerenja temperature senzore Väisälä treba postaviti na pet ravnomjerno raspoređenih mjesta kalibracijske baze, na duljini od 1000 m. Nakon automatskog prikupljanja atmosferskih parametara te njihove automatizirane obrade, dobivaju se rezultati za prosječnu temperaturu, tlak i relativnu vlažnost zraka, koji su potrebni pri daljnjoj automatiziranoj obradi i izjednačenju duljina izmjerenih preciznim elektrooptičkim daljinomjerom.
eng This paper presents the developed automated measurement of atmospheric parameters by means of two sensors Väisälä WXT510 and the notebook for the purpose of precise distance measurements at the calibration baseline of the Faculty of Geodesy, University of Zagreb. During the precise distance measurements, it is very important to measure the atmospheric parameters as precisely as possible: temperature, pressure and relative air humidity. The error in temperature measurement of 1 °C causes the error in the measured distance of 1 mm at 1000 m. For precise distance measurements it is therefore necessary to measure the temperature with the accuracy of ±0.1 °C. For this purpose, in order to measure the atmospheric parameters as accurately as possible, the automation of recording the atmospheric parameters measured by means of the sensors Väisälä has been developed. The testing in the Laboratory for Measurements and Measuring Techniques of the Faculty of Geodesy has shown that after the connection to the voltage one should wait approximately 70 minutes for it to be stabilized. At the calibration baseline of the Faculty of Geodesy it has been found out, that the sensors Väisälä need to be set on 5 equally arranged places at the calibration baseline at the distance of 1000 m for the purpose more accurate temperature measurement. After the automatic gathering of atmospheric parameters and their automated processing, we obtain the results for average temperature, pressure and relative air humidity needed in further automated processing and adjustment of distances measured with precise electro-optical distance meter.

Creator (Dublin Core)

Solarić, Nikola
Barković, Đuro
Zrinjski, Mladen

Subject (Dublin Core)

hrv automatizirano mjerenje atmosferskih parametara; Väisälä WXT510; WeatherTransmitter; precizno mjerenje duljina
eng automated measurement of atmospheric parameters; Väisälä WXT510; WeatherTransmitter; precise distance measurements

Publisher (Dublin Core)

Croatian geodetic society

Date (Dublin Core)

2012

Type (Dublin Core)

text
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

Format (Dublin Core)

application/pdf

Identifier (Dublin Core)

https://hrcak.srce.hr/95828
hrv https://hrcak.srce.hr/file/141120

Source (Dublin Core)

Geodetski list
ISSN 0016-710X (Print)
ISSN 1849-0611 (Online)
Volume 66 (89)
Issue 3

Language (Dublin Core)

hrv

Rights (Dublin Core)

info:eu-repo/semantics/openAccess
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