en:monitoring_and_warning:lcostext
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en:monitoring_and_warning:lcostext [2023/01/16 15:57] – ↷ Page moved from en:technical_part:lcostext to en:monitoring_and_warning:lcostext m-gamperl | en:monitoring_and_warning:lcostext [2023/01/24 14:17] (current) – m-gamperl | ||
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===== Introduction ===== | ===== Introduction ===== | ||
- | This document | + | This page deals with the construction and installation of the Inform@Risk Extensometer. It is a low-cost variation of commertial wire extensometers for geotechnical measurements. To achieve this, it is based on 3D printed parts and a sensor by Waycon Positionsmesstechnik GmbH (though any other wire sensor also works). |
- | The concept can be applied to both vertical extensometers in boreholes as well as horizontal ones in trenches. No matter which of those is installed, a concrete shaft with minimum dimensions of 60x60x100 (LxWxD) is needed. This guide will not go into detail about the installation of extensometer cables, but only deal with the installation of the necessary infrastructure at both cable ends. In this manual, all material relations are marked | + | The concept can be applied to both vertical extensometers in boreholes as well as horizontal ones in trenches. No matter which of those is installed, a concrete shaft with minimum dimensions of 60x60x100 (LxWxD) is needed. This guide will not go into detail about the installation of extensometer cables, but only deal with the installation of the necessary infrastructure at both cable ends. In this manual, all material relations are marked |
- | {{technical_part: | + | {{shaft.jpg|Top view of extensometer shaft for a horizontal installation.}} |
- | {{technical_part: | + | {{ext_cross_section.png|Profile view of extensometer shaft for a horizontal installation.}} |
===== Materials ===== | ===== Materials ===== | ||
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| 32 | 2 | EXT Pipe-Mount-Stretchers | | 32 | 2 | EXT Pipe-Mount-Stretchers | ||
- | {{technical_part: | + | {{ext-materials.png|Materials needed for the extensometer installation. The numbers correspond to the numbers of the table above.}} |
==== Tools and Parts ==== | ==== Tools and Parts ==== | ||
+ | The necessary tools are only a standard array of screwdrivers, | ||
==== Preparation of Weights ==== | ==== Preparation of Weights ==== | ||
- | The weights should have in the center an 8 mm hole with a M8 thread to which the EXT Weight-Mount (\textcolor{red}{Nr. 30}) is attached using M8 screws with hexagon (\textcolor{red}{Nr. 10}), as well as a Pulley (\textcolor{red}{Nr. 5}). | + | The weights should have in the center an 8 mm hole with a M8 thread to which the EXT Weight-Mount (**Nr. 30**) is attached using M8 screws with hexagon (**Nr. 10**), as well as a Pulley (**Nr. 5**). |
==== 3D Printed Parts ==== | ==== 3D Printed Parts ==== | ||
+ | |||
+ | The necessary/ | ||
===== Installation ===== | ===== Installation ===== | ||
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- Drill two holes in the lid for the sensor which should be placed as indicated in the picture \todo{missing figure} | - Drill two holes in the lid for the sensor which should be placed as indicated in the picture \todo{missing figure} | ||
- Saw space for the cable in the lid and pipe (picture \todo{include figure}) | - Saw space for the cable in the lid and pipe (picture \todo{include figure}) | ||
- | - Schritt 5: Kabel einführen | + | - Insert cable |
- | - Ins obere Loch | + | - Into upper hole |
- | - Durchs Gewicht | + | - Through the weight |
- | - Durch den Deckel | + | - Through the lid |
- | - Schritt 6: | + | - Pipe preparation |
- | - Rohr in den Schacht reinbeben | + | - Lift pipe into shaft |
- | - An der Halterung befestigen | + | - Attach to the bracket |
- | - Gewicht anheben | + | - Lift weight |
- | {{technical_part: | + | {{ext_assembly.jpg|Assembly of extensometer in a shaft.}} |
+ | |||
+ | Explanation of figure: | ||
===== Attaching Measurement Node to Sensor ===== | ===== Attaching Measurement Node to Sensor ===== | ||
+ | |||
+ | For attaching the Waycon sensor to the measurement node, the wires from the sensor have to be attached to GND, power (12 V) and the analog port of the measurement node. The chosen analog port has then to be selected when programming the node for extensometer operation (see [[software|Software Installation for Measurement Nodes]]). | ||
en/monitoring_and_warning/lcostext.1673884642.txt.gz · Last modified: 2023/01/16 15:57 by m-gamperl