Acoustic Recorder and Signal Analyzer – Sono.Vault
Our Sono.Vault acoustic recorder and signal analyzer is designed for long-term recording and monitoring of marine acoustic emissions.
The stated driving parameters for the systems production during the period of development were: energy-efficiency, a premium recording quality and ruggedness.
The system is capable to record acoustic signals continuously (from 24bits to 20/48ksps1) and 16bit to 196/220ksps1) ). Frequencies on flash storage with up to 1.1TB capacity can be sampled.
In order to support long-term monitoring frequencies up to 92 kHz, various triggering and sampling schemes are available. They are auxiliary to reduce size generated data to manageable amounts.
Depending on the sampling rates, the Sono.Vault system is able to record acoustic data continuously for more than 2 years2).
Our highly demanded standard version is optimized for low-energy consumption and it is suitable for general acoustic monitoring tasks.
The varied XT version features higher overall sampling rates, a lower noise analogue frontend. It additionally offers a very flat frequency response and an integrated calibration signal generator. The system is optimized for quantitative monitoring of acoustic emissions. Those can be underwater noise generated by construction works or performance evaluation of marine acoustic systems.
(1) XT-Version
(2) E.g. 5ksps @ 24bit
| Sampling Rates: | |
| - 16 bit up to 220ksps (1) (effective resolution 14.4 bits @220ksps (1)) | |
| - 24 bit up to 20/48 ksps (1) (effective resolution 19.1 bit @48ksps (1)) | |
| Hydrophone: | |
| Spherical, differential Hydrophone, survival depth 3500m | |
| Bandwidth: | |
| - 3Hz to 100kHz – depending on sampling parameters | |
| - programmable input preamplifier 0 to 50dB / -20 to 40db (1) | |
| Housing: | |
| - Corrosion proof, double length MCH housing, depth rated to 6000m (Standard hydrophone: 3500m) | |
| - High mass, vibration attenuating hydrophone mount | |
| Dimensions: | |
| Outer diameter: | 153mm / 180mm |
| Outer length: | |
| - without mooring frame | 1550mm |
| - with mooring frame | 1940mm |
| Weight: | |
| In air: | ca. 33,9 kg |
| Storage: | |
| 7x SDHC / storage module , SDXC compatibility via firmware update, up to 5 storage modules (1100 GB total) | |
| Recording Capacity: | |
| 220GB per storage module, up to 5 modules | |
| Internal Battery Capacity: | |
| Up to 4500Wh – Recording time up to more than 2 years (depending on configuration) | |
| Signal Processing / Analysis Functions (3) : | |
| - Recording trigger based on energy threshold and frequency patterns | |
| - Periodic spectral recording | |
| - etc. | |
| Precision Time Base: | |
| - 0.5 ppm drift standard | |
| - Calibratable to 0.035 ppm | |
| Interfaces: | |
| - 1x RS232 for configuration and interfacing to telemetry systems (HAM.NODE, HAM.BASE R.COM) | |
| - System bus | |
| Options: | |
| Mini.Logger module with additional sensors, interfaces / IO capabilities | |
(1) XT-Version
(2) E.g. 5ksps @ 24bit
(3) Requires optional DSP Module
November- December, 2010
develogic delivered nine Sono Vaults to the AWI ( Alfred-Wegener-Institute) for recording the whale sounds in the ocean. One of the Sono Vaults has been deployed next to the coast of Namibia (position 22°S 5°W) during the Polarstern cruise expedition ANTXVII. The deployment of the other eight Sono Vaults took place during another cruise in the area of the Antarctica.
All of the nine Sono Vaults were deployed in its mooring frame included in a mooring chain (depth of around 1000 m).
