Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement)
The first velocity correction is used to correct the measured distance affected by the velocity variation of the electromagnetic wave propagation in a medium. This correction depends on the refractive index of the propagation medium and reference refractive index. The influence of the temperature in...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Diponegoro University
2021-05-01
|
| Series: | Geoplanning: Journal of Geomatics and Planning |
| Subjects: | |
| Online Access: | https://ejournal.undip.ac.id/index.php/geoplanning/article/view/29061 |
| _version_ | 1811303781723275264 |
|---|---|
| author | Felipe Andrés Carvajal Rodriguez Luis Augusto Koenig Veiga Wilson Alcântara Soares |
| author_facet | Felipe Andrés Carvajal Rodriguez Luis Augusto Koenig Veiga Wilson Alcântara Soares |
| author_sort | Felipe Andrés Carvajal Rodriguez |
| collection | DOAJ |
| description | The first velocity correction is used to correct the measured distance affected by the velocity variation of the electromagnetic wave propagation in a medium. This correction depends on the refractive index of the propagation medium and reference refractive index. The influence of the temperature in the medium refractive index is critical; some estimates establish that variation 1°C causes 1ppm of error in distances. In the measuring processes with total stations, the temperature is usually collected at only one point, for example, in the position where the measuring instrument is setup. However, the wave propagates in a medium of non-constant temperature, where the extremes of the line can present variations and thus this measurement in only one point could be non-representative. In this context, it was developed a low-cost real-time temperature acquisition system. This system provides the temperature values in different locations allowing their monitoring through the time. Experiments realized during the geodetic monitoring of a dam, show variations up to 8°C among geodetic points on the dam and around it. An analysis was development to evaluate the influence of temperature variations on monitoring distances and geodetic coordinate of a 2d network with different approaches (temperature modeling). The results shows different values for distances (1.0 mm) and coordinates (0.5 mm) depending of the approach choose. |
| first_indexed | 2024-04-13T07:54:10Z |
| format | Article |
| id | doaj.art-00da2bdc13454ea7a9d6729b1f477f51 |
| institution | Directory Open Access Journal |
| issn | 2355-6544 |
| language | English |
| last_indexed | 2024-04-13T07:54:10Z |
| publishDate | 2021-05-01 |
| publisher | Diponegoro University |
| record_format | Article |
| series | Geoplanning: Journal of Geomatics and Planning |
| spelling | doaj.art-00da2bdc13454ea7a9d6729b1f477f512022-12-22T02:55:26ZengDiponegoro UniversityGeoplanning: Journal of Geomatics and Planning2355-65442021-05-0181617410.14710/geoplanning.8.1.61-7417870Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement)Felipe Andrés Carvajal Rodriguez0https://orcid.org/0000-0003-2418-3924Luis Augusto Koenig Veiga1https://orcid.org/0000-0003-4026-5372Wilson Alcântara Soares2Federal University of Paraná, ChileFederal University of Paraná, ChileFederal University of Paraná, ChileThe first velocity correction is used to correct the measured distance affected by the velocity variation of the electromagnetic wave propagation in a medium. This correction depends on the refractive index of the propagation medium and reference refractive index. The influence of the temperature in the medium refractive index is critical; some estimates establish that variation 1°C causes 1ppm of error in distances. In the measuring processes with total stations, the temperature is usually collected at only one point, for example, in the position where the measuring instrument is setup. However, the wave propagates in a medium of non-constant temperature, where the extremes of the line can present variations and thus this measurement in only one point could be non-representative. In this context, it was developed a low-cost real-time temperature acquisition system. This system provides the temperature values in different locations allowing their monitoring through the time. Experiments realized during the geodetic monitoring of a dam, show variations up to 8°C among geodetic points on the dam and around it. An analysis was development to evaluate the influence of temperature variations on monitoring distances and geodetic coordinate of a 2d network with different approaches (temperature modeling). The results shows different values for distances (1.0 mm) and coordinates (0.5 mm) depending of the approach choose.https://ejournal.undip.ac.id/index.php/geoplanning/article/view/29061edmrefractionsensorsnetwokrs |
| spellingShingle | Felipe Andrés Carvajal Rodriguez Luis Augusto Koenig Veiga Wilson Alcântara Soares Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement) Geoplanning: Journal of Geomatics and Planning edm refraction sensors netwokrs |
| title | Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement) |
| title_full | Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement) |
| title_fullStr | Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement) |
| title_full_unstemmed | Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement) |
| title_short | Temperature Acquisition System for Real Time Application of First Velocity Correction by EDM (Electronic Distance Measurement) |
| title_sort | temperature acquisition system for real time application of first velocity correction by edm electronic distance measurement |
| topic | edm refraction sensors netwokrs |
| url | https://ejournal.undip.ac.id/index.php/geoplanning/article/view/29061 |
| work_keys_str_mv | AT felipeandrescarvajalrodriguez temperatureacquisitionsystemforrealtimeapplicationoffirstvelocitycorrectionbyedmelectronicdistancemeasurement AT luisaugustokoenigveiga temperatureacquisitionsystemforrealtimeapplicationoffirstvelocitycorrectionbyedmelectronicdistancemeasurement AT wilsonalcantarasoares temperatureacquisitionsystemforrealtimeapplicationoffirstvelocitycorrectionbyedmelectronicdistancemeasurement |