digitalHyd - Model SR-1 - 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.
-162.2 to -126.1 dB re 1 V/uPa(en)
Input Sound Pressure Level Range
46.3 dB re 1 Pa 至172.5 dB re 1 (en)
Usable Acoustic Band
1 Hz to 25.8 kHz / 1 Hz to 51.6 kHz(en)
52.734 kHz / 105.469 kHz (可选)(en)
The digitalHyd SR-1 records signals in the frequency band from 1Hz to 24.9kHz or 1Hz to 49.8kHz, depending on selected sampling frequency. These signals are stored on a removable memory card with up-to 128GB of capacity, using 16-bit or 24-bit of 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 10 hours of continous acquisition, or various days in stand-by. Battery and memory card are field replaceable, to allow for quick redeployments of the Hydrophone. Optional battery extension packs are available on demand, ex: the 4PACK option expanding the SR-1 to up-to 5x the autonomy.
- Applications and Operating examples
- Underwater Noise Monitoring
- Underwater Acoustic Research
- Acoustic Field Calibration