digitalHyd SR-1

A Self-Recording Digital Hydrophone

The digitalHyd SR-1 is an autonomous recording device designed for user-friendly operation in underwater acoustic signal acquisition activities. Its compact construction and functionalities allows for the implementation of efficient measurement strategies, thus, avoiding the requirement of large operational human and material resources for deployment and recovery.

Datasheet (updated Dec. 2011) Recorded Sounds  Publication Internoise2010

Listen to underwater sound recorded using the digitalHyd SR-1:
Recorded Sounds

The digitalHyd SR-1 records signals in the frequency band from 122Hz to 24.9kHz. These signals are stored on a removable memory card, using 16-bit resolution, and can be opened by conventional media players and signal processing applications. All acquisition information including date, time and gain are available in the header of the files for later analysis. The acquisition can start as soon as the device is powered up or at predefined scheduled dates and times. Programmable parameters include file duration, PGA gain and start-up times, among others. The configuration of all parameters is performed through a USB interface with access compatibility from various types of operating systems.

The digitalHyd SR-1 is powered by a rechargeable lithium-ion battery and is able to remain on for up to 3 days. Battery and memory card are field replaceable, to allow for quick redeployments of the Hydrophone.

Applications and Operating examples

Underwater Noise Monitoring Bio-acoustics Underwater Acoustic Research Acoustic Field Calibration