Sonar sensors

Hawk Measurement Systems has launched a new line of “fourth generation” sonar transducers designed for improved sensing of interface levels in clarifiers and thickeners. The new transducer designs include three to seven sonar crystals mounted in a single head. Each sonar array produces a concentrated sonar beam, providing more emitted power and collecting more returned signals.

The transducers and integrated self-cleaning systems also offer an accurate “real-time” output representing the behavior of a density interface. This output can be used as a control input, not just for monitoring. For example, while Hawk’s Orca Sonar Interface products (shown here) use sonar sensors to locate and track layers of differing density within a process tank, they can also allow users to control flocculent dosing, settling time, and density of a bed. (www.hawkmeasure.com)

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