Lindorm, Inc.
Lindorm, Inc.
SediMeter
"Sedimeter sensors designed and
built by Lindorm are a fantastic
tool for measuring water column
turbidity and siltation." (Gravity)
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SediMeter Software

Free software with powerful analysis capabilities

The software allows the setup, download, inspection, analysis, and export of measurement data and illustrations for reports.

The data analysis window has many options for displaying data, zooming, contrast-stretching and so on.

Custom versions of the software can be made for specific meansurement or monitoring projects, for instance including kriging interpolation between instruments to create real-time siltation maps.

You may want to check out the videos to see how the software is used.

SediMeter Control window
The setup tab of the SediMeter control window, ver. 2.0 (ver 3 is similar).

The examples below show version 2 of the software, and data from SediMeter SM2. Version 3 no longer supports the optional pressure sensor used to measure the water level and waves, but on the other hand it incorporates better level measurements, burst sampling of level and turbidity, alarms, and an optional kriging function for map generation.

The SediMeter data plot window is used for both real-time monitoring and post-processing of data from the logger or from memory cards. The top graph is a backscatter intensity plot, while the middle graph plots the turbidity isoline along with turbidity in the water, and data from other sensors such astemperature, pressure, and light.

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This example shows how formazin settles out from a 2000 FTU suspension. The Data Plot graph shows the 1000 FBU isoline. As the level sinks slower to the end, the concentration keeps increasing. This is analogous to the compaction of cohesive sediments.

Burst sampling data from (optional) analog sensors such as pressure and light are displayed in the bottom two graphs in the time and frequency domain. The average value is also shown in the Data Plot window, along with standard deviation and period of one of the sensors (e.g., the pressure).

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The graphs are extensively customizable. This screen dump shows the zoom tools.

From data to report

When your graph looks the way you want it, with the right colours, scales, etc., it can be copied and pasted into a report or a graphic editing software. The graph below is the Data Plot window, scaled to show light and pressure data. The parameters were measured at 1.5 Hz with 84 samples per burst. The standard deviation of the pressure can be used to estimate the wave height.

Copied and pasted graph from the software

Comment: Hurricane Paloma passed Cuba in the latter half of the monitoring interval, thus explaining the larger waves. Furthermore, when the water level was lowest the waves were also lowest, indicating that they were breaking offshore of the SediMeter. The instrument was placed at the outer end of a tidal inlet. The SediMeter stood firm in spite of near breaking waves, and strong tidal currents. Average depth ca 2 m (the pressure sensor was ca 60 cm above the sea floor). You can display depth in meters instead of pressure in pascal by changing the conversion coefficients.

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The SediMeter™ software is ©Lindorm Inc., 2006-2016. All rights reserved. LabVIEW is a trademark of National Instruments, etc.