The recorded data provided by the impact logger, based on an OEM version of a Tinytag count logger, provides information about sediment transport, erosion and deposition in rivers and streams.
Research Equipment Developer Ian Benson has
used Gemini data logging technology to create custom-made
impact data loggers for scientists studying sediment
movement in rivers. Based on a
Tinytag Plus count input data logger, built into a
stainless steel enclosure, the technology is used to study
waterborne sediment transport, providing information on
the basic physics of how turbulence influences sediments, including
geomorphology, studies of erosion and deposition.
The data loggers are used by colleges and other organisations in
the UK, Chile, Switzerland and other countries for counting
the impacts of sediment particles in rivers, with the
projects in Chile and Switzerland studying upland streams fed by
glacial meltwater. The loggers allow the recording of high
frequencies of impacts over long sampling periods.
Recorded data is used in research and reports, which may include
management advice to authorities such as National
Parks or the Environment Agency.
Ian has found the Tinytags to be rugged and
reliable. He comments, "The shape and
specification of the units and the ongoing continuity of the design
is crucial for doing science where there is limited space in the
enclosure and the physical behaviour (mass, stiffness etc.) of the
overall assembly must be consistent in ongoing studies that run
over a number of years. I have also found Gemini Data Loggers'
technical support to be excellent."
The image shows the
Tinytag count data logger built into the stainless