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Blog - 15
Turbidity & suspended solids instrumentation, historically based in Port Townsend, WA Product line now supported through Campbell Scientific, Inc.
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D & A Instruments
Turbidity monitors & water-quality instrumentation

Blog

  1. Positioning Turbidity Sensors in Large Diameter PipelinesTurbidity sensors can provide rapid visibility into solids movement, process changes, and abnormal conditions inside a pipeline. In a large-diameter line,…
  2. Deploying Optical Sensors in Wastewater Effluent ChannelsEffluent channels are among the most demanding locations for continuous water-quality measurement. Flow is often shallow, turbulent, and variable, while the…
  3. Tracing Hidden Groundwater Pathways in LakesGroundwater entering a lake is often invisible at the surface. It may seep through a broad section of the bed, emerge from discrete springs, or rise through…
  4. Optical Backscatter Calibration for Glacial River MonitoringGlacial rivers carry rapidly changing loads of finely ground rock, clay, silt, and sand. During melt periods, suspended sediment can rise from clear-water…
  5. Integrating Turbidity And TSS For Regulatory ReportingRegulatory reporting for dredging, construction, stormwater, wastewater, and watershed projects increasingly depends on reliable evidence of suspended material…
  6. Reading Turbidity Spikes in Narrow Boat ChannelsBoat traffic can produce short-lived increases in turbidity that are easy to mistake for dredging impacts, storm runoff, bank erosion, or a failure in a…
  7. Designing Reliable Turbidity Monitoring for Lake RestorationLake restoration projects often involve dredging, sediment removal, shoreline stabilization, nutrient reduction, or the reintroduction of aquatic vegetation.…
  8. How flocculation changes suspended-solids sensor responseOptical suspended-solids sensors do not measure particle mass directly. They measure how particles interact with light, then use a calibration relationship to…
  9. Reliable Field Checks for Portable Turbidity SensorsField-portable turbidity sensors provide rapid measurements where water conditions can change within minutes. They are used during construction inspections,…
  10. Using Optical Backscatter To Estimate Sediment Flux In EstuariesEstuaries continuously exchange water, sediment, nutrients, and contaminants between rivers and coastal seas. Tidal currents can resuspend material from the…