Electronic Distance Measurement

Rüeger, J. M.

doi:10.1007/978-3-642-80233-1

Cited by 115 publications

(100 citation statements)

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“…Fig. 1 displays the baseline geometry, which is basically intended for calibration of EDMs and, therefore, is of the so-called Heerbrugg-type design [27].…”

Section: Application and Resultsmentioning

confidence: 99%

Deformation monitoring and the maximum number of stable points method

2015

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Abstract. The question of determination of displacements in control networks with two or more measuring epochs is a well-known problem with broad applications to different fields of science and engineering. The standard procedure, which is computed by means of the pseudoinverse matrix, however, makes an implicit assumption that may be not convenient for the network at hand: it distributes the noticed displacement among the majority of the network points. The present paper develops what it has been named as the maximum number of stable points hypothesis and builds from the corresponding theoretical framework an applicable computation procedure. Application to a particular example will confirm its clear advantages versus the standard procedure for deformation determination in the cases where a single large deformation may be suspected.

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“…Fig. 1 displays the baseline geometry, which is basically intended for calibration of EDMs and, therefore, is of the so-called Heerbrugg-type design [27].…”

Section: Application and Resultsmentioning

confidence: 99%

Deformation monitoring and the maximum number of stable points method

2015

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“…The travel speed of the emitted light of the EDM unit of the RTS depends on the refractive index of the air which is mainly influenced by the mean air temperature T and the mean pressure p along the measurement path. Relative humidity h also has a noticeable impact [3]. To compensate for these impacts, atmospheric correction factors have to be applied.…”

Section: Impact Of the Measurement Pathmentioning

confidence: 99%

Geotechnical monitoring using total stations and laser scanners: critical aspects and solutions

Lienhart

2017

J Civil Struct Health Monit

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Modern geotechnical monitoring is based on a variety of surface-based and integrated sensors. This article discusses the potential but also the limitations of total stations and laser scanners in monitoring of civil infrastructure and natural phenomena. We report about our experiences gained in long-term monitoring projects and discuss the impact of the setup location, the signal travel path, and the target. Although modern instruments are capable of measurements with accuracies of a few millimetres or better, neglecting error sources like temperature dependence of the tilt sensor, orientation of the used prism, obstructions and reflections of the measurement beam, and atmospheric refraction can easily cause errors of several millimetres or even centimetres.

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“…In electronic distances measurements the main source of errors comes from the atmospheric environment, which has three important atmospheric parameters: temperature, air pressure and relative humidity [4].…”

Section: Discussionmentioning

confidence: 99%

“…With the Leica TC (R) -705 distance can be measured using visible spectrum light (RL) system or infrared light (IR) system [3]. The choice of mode depends on selected the measurement mode and type of prism changes [3,4]. By calling the configuration of measuring distances we can insert the reflector prism constant value.…”

Section: Methodsmentioning

confidence: 99%