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Suspended load sampler, Delft bottle

This sampler is used to measure suspended sediment transport in rivers and other watercourses, from the surface down to 0.1 m above the river bottom. The sediment containing water flows through a bottle shaped sampler. The shape of the sampling body induces a low pressure at the rear face in such a way, that the […]

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This sampler is used to measure suspended sediment transport in rivers and other watercourses, from the surface down to 0.1 m above the river bottom. The sediment containing water flows through a bottle shaped sampler. The shape of the sampling body induces a low pressure at the rear face in such a way, that the water enters the nozzle of the sampler with almost the same velocity as the undisturbed flow. The sharp decrease of the velocity in the wide sampling chambers causes the sediment material to settle there.