ATLAS-plus

ATLAS-plus is a digital recorder designed for structural and seismic monitoring applications, whenever a robust and reliable “stand-alone” instrument is needed to continuously record data over a long period of time.

ATLAS-plus_logo

The system is available with 3, 6 or 9 differential input channels for external sensors.

EXCELLENT PERFORMANCE

The instrument is equipped with high-resolution delta-sigma 32 bit ADCs, all the channels are synchronized and the sample rate is adjustable up to 5000 sps per channel. The internal memory (up to 1 TByte) has two independent recording zones: the ring-buffer zone which is dedicated to continuous sampling, and the triggering zone which is used for event sampling.

The data is stored in MiniSEED format.

The built-in GNSS receiver synchronizes the system clock with the absolute time so that a network of several units can be created where all the channels are synchronized. Using the trigger criteria that is available in the firmware, it is possible to distinguish environmental vibrations from seismic events.

EASY TO USE

You can control ATLAS locally via network connection (LAN or WiFi), and remotely using the integrated LTE modem ( optional). The instrument can be used as a “stand-alone” unit to record seismic events in the field or it can be used in a MASTER-SLAVE based monitoring network where multiple instruments are connected to each other; the MASTER device manages the interconnection with the other SLAVE units, collecting data from them and managing the connection with the remote server. Furthermore, MASTER and SLAVE units can perform periodic analysis of ambient noise and post-seismic vibrations in order to evaluate the structural damage caused by an earthquake, in real-time.

Thanks to the SeedLink protocol, ATLAS is compatible with most popular seismic analysis software (Seiscomp3, Antelope, Earthworm).

INTEGRATED UPS

ATLAS is equipped with an internal battery (LiPo) which can guarantee an autonomy of more than 20 hours in case of a blackout; both the LTE modem and external sensors’ power supply is backed up by the internal battery. ATLAS’ power supply ranges from 9 to 36 VDC, it can be connected to the electric power network with the power supply adapter included.

ROBUST

The anodized aluminum (INOX AI6061 option) enclosure is CNC milled, shockproof, vibration-resistant, weather-resistant and designed with a built-in mounting brackets for easy installation.

APPLICATIONS

Long-term or short-term monitoring

ATLAS can be used with an accelerometric or a velocimetric sensor.
ATLAS can be configured in-situ using WIFI or LAN cable.
If ATLAS is used for long-term monitoring, it can be reached remotely using the built-in 4G modem or using LAN connection in order to link it, for example, to an ADSL modem.

Large structures monitoring

ATLAS is well suited to the monitoring of large structures where information from multiple sensors is required.
In the aforementioned use case sensors are wired up to ATLAS and each device can be used to acquire up to 9 synchronous channels.
If more channels are needed, you can connect to another ATLAS device and synchronize it with the MASTER .
ATLAS can be reached locally via WiFi or remotely using the built-in 4G modem or LAN.

Structural monitoring

ATLAS is often used in the field of structural monitoring to calculate the resonant frequency of the buildings.
Lunitek has developed ad-hoc firmware based on FFT for real time evaluation of the building’s state of health.

Monitoring station

In a typical geophysical monitoring station, ATLAS is used with a low-noise force-balance-triaxial accelerometer and with a triaxial velocimeter, both mounted on a concrete slab.
Both sensors are digitized with high dynamics, high accuracy ADC.
ATLAS can be equipped with auxiliary analog inputs in order to monitor environmental data (temperature or humidity) or with digital input to monitor external events (vault open/closed) or even with output driving capability to communicate when thresholds are exceeded (alarms).

MODELS

ATLAS 3T
3 24bit channels on a single MIL connector (size 14, 19 pins) sample rate up to 1Khz​

ATLAS 6T
6 24bit channels on two MIL connectors (size 14, 19 pins) sample rate up to 500Hz​

ATLAS 9T
9 24bit channels on three MIL connectors (size 14, 19 pins) sample rate up to 250Hz​

ATLAS 3S
3 24bit channels on three MIL connectors (size 10, 7 pins) sample rate up to 1Khz​

ATLAS 6S
6 24bit channels on six MIL connectors (size 10, 7 pins) sample rate up to 500Hz

DOWNLOAD DATA SHEET

KEY FEATURES

ADC resolution 32 bit
Sampling rates 1, 20, 25, 50, 100, 200, 250, 500 , 1000, 5000 sps synchronous
Dynamic range > 145 dB@100 sps
LAN, WiFi and LTE modem
Built-in GNSS receiver
Integrated Ups, > 20 hrs system autonomy
Miniseed Data Format
Compatibility with Earthworm, Seiscomp, Geopsy, Seisgram2k