History of Sonar

By JoJo_24

  • Daniel Colloden

    Daniel Colloden
    Daniel Colloden used a under water bell to calculate the speed of sound underwater.

  • Lewis Nixon

    Lewis Nixon invented the very first Sonar type listening device in 1906 as a way of detecting icebergs. Interest in Sonar increased during World War I when there was a need to be able to detect submarines.

  • Reginald Fessenden

    Reginald Fessenden
    He made the first experimental unit, which was able to detect ice-bergs from a 2-mile range but couldn't determine a direction.

  • Paul Langévin

    In 1915, Paul Langévin invented the first sonar type device for detecting submarines called an "echo location to detect submarines" by using the piezoelectric properties of the quartz.