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Underwater microphone enclosure

A watertight enclosure concept and a separate sound source for testing an underwater microphone.

5 photographs · Original photo numbers retained

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Enclosure

Photos 177–179

Photo 177 — A test setup for an underwater microphone — Photo 177 · No date found
A test setup for an underwater microphone
A bin used for experiments with an underwater microphone enclosure. At one end, a speaker was sealed into an acrylic housing with silicone and driven by an audio amplifier. The large clear acrylic cylinder was intended to hold the microphone. The many bolts made access tedious and introduced numerous possible leak paths; for a redesign, I would explore clamping collars around the ends.

Photo 178 — 2016-2017: Enclosure for Underwater Camera and Microphone, image 2 — Photo 178 · No date found

Photo 179 — The cylindrical microphone enclosure — Photo 179 · No date found
The cylindrical microphone enclosure
Another view of the clear acrylic enclosure intended for the underwater microphone. Working with this bolted assembly made me interested in a simpler end-clamping arrangement that would be easier to open and reseal.

Audio test source

Photos 428–429

Photo 428 — A sound source for testing underwater microphones — Photo 428 · Sep 28, 2026
A sound source for testing underwater microphones
An underwater transducer and its supporting test equipment. I used it as a sound source when testing underwater microphones.

Photo 429 — Another view of the underwater audio test setup — Photo 429 · Sep 28, 2026
Another view of the underwater audio test setup
Another view of the transducer setup used to test underwater microphones.