u/IndividualServe1927

▲ 2 r/rov

Measuring RPM underwater - Non intrusive

I am looking to measure the RPM of a propeller underwater non-intrusively. I've looked at waterproofing a laser tacho, but I'm worried about scattering. I've seen that a hydrophone could theoretically work, but I want a relatively simple solution. I'd like to initially stray away from indirectly measuring the RPM with the eRPM. Any thoughts?

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u/IndividualServe1927 — 14 days ago