Articles
The short explanation
Briefly, the difference between turbidity and Super-Turbidity (Patent Pending) can be summarized as follows:
Turbidity (NTU) = Optical Backscatter; Needs Calibration for SSC; less accurate
Super-Turbidity (mg/l) = Optical & Acoustic Backscatter; No Calibration for SSC; more...
LISST-AOBS has Nearly Uniform Sensitivity Across Wide Grain Sizes!
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Why the Acousto-Optic Super-Turbidity Sensor LISST-AOBS?
The sensitivity (Volts/[mg/L] ) of Optical turbidity sensors varies inversely with grain size. Turbidity sensors are highly sensitive to fine particles, and insensitive to large...
Welcome to the first installment of Sequoia’s Fun Fact Series!
Irregularly, we’ll post interesting facts about sediments in this Fun Fact Series. To kick it off, we’ll go all the way back to the beginning – the very first known measurement of sediment anywhere in the world.
Incredibly,...
LISST-SL2 Is Demonstrated in Yangtze River, Wuhan, China
[This article shows an example of river data from a boat; for bridge-lowered data, click here.]
The Yangtze River hydrological facility is located in Wuhan on the western bank. A map of the location can be found here (30°37’41.59″...
Real Time Displays, and Immediate Averaged Results
The new LISST-SL2 river sediment monitoring instrument is a greatly simplified and powerful device. The instrument transmits data immediately upon being lowered into water. Data can be viewed in real time, or after processing for averages. Click here...
This article is corrected and simplified,17 Sept. 2018
What is the measurable concentration range of LISST instruments?
In Brief: The range of concentrations that LISST instruments can measure depends on particle size. For laser-diffraction LISST instruments, the recommended upper limit of concentrations...
First Particles in the Americas (PiA) to take place in Vitoria, Brazil.
Dates: 24 September – 27 September 2018
For details, please go to the webpage for the conference; Click here.
PiA is convened jointly by Sequoia Scientific, Universidad del Norte of Colombia, and Federal University...
DOWNLOAD Proceedings of PiE-2018 (5.6MB)
6th Particles in Europe Conference
14-17 October, 2018
Abstract Deadline 31 August, 2018
Final Program (Updated 11 October 2018)
To go to the Final Conference Program, click here.
[What are PiE Conferences? Click here.]
Following successful...
Particle Size Analysis in Drilling and Hydropower
Selected list of Customers Worldwide
Oil and Gas Drilling
Baker Hughes
ECO-Champion
Exxon Mobil
Focus Energy Limited
Halliburton
M-I SWACO
Petrochem
Qmax
Schlumberger
Tatweer Petroleum
Weatherford
Hydropower
Chukha Hydro, Bhutan
Chuzachen Hydro, and Dikchu...
Particle size distribution (PSD) is a fundamental oceanographic measurement, with diverse biogeochemical applications including carbon cycle science, ecosystem and fisheries modeling, and harmful algal bloom (HAB) detection/prediction. There is optimism that estimates of PSD will be available from ocean...