Manufacturers of Dual Frequency Identification Sonar (DIDSON), a lens-based sonar that makes almost-photographic images with sound in turbid water where optical systems are ineffective.
Sound Metrics Corp.
DIDSON High Definition Imaging Sonar and High Resolution Imaging Sonar
2024-06-24
Sound Metrics of Lake Forest Park, WA, U.S.A. manufactures the DIDSON (Dual-Frequency Identification Sonar). DIDSON gives near video quality images for inspection and identification of objects underwater in turbid water where optical systems fail. DIDSON operates at two pairs of frequencies (1.8 MHz and 1.1 MHz) or (1.2 MHz and 0.7 MHz) and uses acoustic lenses which allow for sharp images.