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Issued patent

Extreme Low Frequency Hydrophone

An issued NASA patent from the Technology Transfer catalog.

View at technology.nasa.gov
Media from NASA Technology Transfer

About this technology

Overview

The Extreme low frequency infrasonic hydrophone, with the associated software, is capable of sensing down to .0001 Hz, a 4.999 Hz improvement from current similar systems. This ultra-low power consuming hydrophone also isolates and removes significant amounts of background noise, inherent to the electret type microphone not previously introduced into hydrophone applications. The uniquely robust unit design also permits for sub-freezing operations deep below the surface. The results promise to drastically alter lives and multiple industries, enabling totally new data for weather monitoring and earthquake/tsunami prediction among numerous other academic applications. It could also improve current hydrophone accuracy or reliability in finding oil resources, and will enable monitoring human generated infrasound in water.