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The History of Sequoia – Part X

July 5, 2022

…Wherein we’ll learn about the use of LISSTs during the Deepwater Horizon accident in 2010 (Part IX can be found here: https://www.sequoiasci.com/article/the-history-of-sequoia-part-ix/) Particle size distribution is important in many areas. When...

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The history of the O-ring

March 7, 2022

O-rings are so ubiquitous today – at least for all of us building underwater instrumentation for the underwater technology industry – that we generally think of them as something that has always been around. But that is not the case. The other night...

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Laser Diffraction Principles

April 2, 2017

This is a simple description. For detailed explanations see articles: Laser Diffraction-101 and -201. Particle Size Distribution  (PSD) is a multi-parameter description of how the total concentration of particles is distributed into many size fractions....

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Turbidity vs Laser Diffraction – why LD is better

April 29, 2016

Last updated: 11 May 2016  Turbidity as a surrogate for suspended sediment concentration (SSC) is commonly used and deeply established in practice. The shortcomings of turbidity as a surrogate for SSC are: The calibration changes with grain size; The...

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