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How The LISST-ABS Works

May 1, 2015

Updated: 4 March 2016. INTRODUCTION: Sequoia’s Acoustic Backscatter Sensor, LISST-ABS is designed to measure suspended sediment concentration at a point. Unlike ADCP’s which may record similar backscatter strength at multiple points (‘ranges’)...

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LISST-SL velocity thresholds

October 11, 2013

Is there a low velocity threshold for the LISST-SL? Does it need a minimum flow speed in order to sample? What is that? Absolutely! The internal pump in the SL will adjust the intake velocity to match the ambient flow speed in order to make the sample...

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On-line monitoring of silt in hydro-power plants

September 20, 2013

Sequoia makes laser diffraction and acoustic backscatter sensors for this application. On-line monitoring of silt in hydro-power plants is a reality using Sequoia’s LISST-Infinite or LISST-Hydro instruments, designed specifically for this purpose....

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