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Author: Dave Yake

Photo of Maxbotix MB7389 sensors on a boom extending over a stream. Photo of Maxbotix MB7389 sensors on a boom extending over a stream.

Evaluating Maxbotix Ultrasonic Sensors for Monitoring Stream Base Flow

Dave Yake 6 Comments

We evaluated the positives and negatives of using Maxbotix MB7389 ultrasonic sensors for monitoring baseflow stream levels.

Hemispherical Shield to Reduce Fouling of Campbell Turbidity Sensor Hemispherical Shield to Reduce Fouling of Campbell Turbidity Sensor

Hemispherical Shield to Reduce Fouling of Campbell Turbidity Sensor

Dave Yake No Comments

Sensor fouling greatly reduced our confidence in the turbidity data. We decided to test a hemispherical shield for ease of construction and installation.

Low-Cost Stream “Tower Sampler” Low-Cost Stream “Tower Sampler”

Low-Cost Stream “Tower Sampler”

Dave Yake 3 Comments

We have developed a low-cost and very simple “Tower Sampler” that utilizes plastic bottles mounted vertically in the stream to collect discrete samples as various stream levels.