IOLITEdi 3xMEMS-ACC - Low-Noise Triaxial MEMS Accelerometer and Inclinometer

Tailor-made data acquisition device for structural health monitoring solutions. Ideal price-performance for permanent condition monitoring on structures such as bridges, buildings, antennas, and stadiums.

Accélération
Accélération
Vibrations
Vibrations
Angle
Angle
EtherCAT
EtherCAT
IP67
IP67
Chocs > 50g
Chocs > 50g
-20°C to +60°C
-20°C to +60°C

Main Features

  • ALL-IN-ONE: IOLITEdi 3xMEMS-ACC is a data acquisition device with an embedded triaxial MEMS accelerometer, analog-to-digital conversion, and EtherCAT interface based on the IOLITEd DAQ device platform.
  • LOW NOISE DENSITY: The device has a very low noise performance of 25 μg√Hz noise density.
  • DISTRIBUTABLE: Easily distribute and synchronize multiple devices over large structures using one cable that can span up to 50m node-to-node.
  • GREAT PRICE VS. PERFORMANCE: The device offers a good price vs. performance ratio and is thus perfect for system integrators, and large continuous monitoring installations.
  • VERSATILE MEASUREMENT: The device can measure acceleration in the X, Y, and Z axes. Software calculations in Dewesoft X allow you to calculate velocity and displacements as well as static pitch and roll angles from the DC acceleration values.
  • WATERPROOF ENCLOSURE: Waterproof enclosure is optionally available
  • SOFTWARE INCLUDED WITH FREE LIFETIME UPGRADES: The easy-to-use but rich in functionality, award-winning DewesoftX data acquisition software is included. All software upgrades are free forever with no hidden licensing or maintenance costs.


IOLITEdi 3xMEMS-ACC Overview

IOLITEdi 3xMEMS-ACC is an integrated sensing device. Acceleration is measured by a triaxial MEMS accelerometer inside the device that is tightly attached to the mechanical chassis.

Analog to digital conversion is done inside the device, eliminating any noise picked up in analog cabling.

A microprocessor inside the device transmits the acceleration samples over into DewesoftX software running on a Windows PC, or alternatively to any controller running EtherCAT master on any platform. Scaling is automatic, therefore the data in g or m/s2 is readily available to the user.

An internal temperature sensor mounted inside the device measures the temperature of the MEMS accelerometer. The readings from the temperature sensor are displayed inside DewesoftX data acquisition software as a System Monitor channel. The values are updated once per second.

IOLITEdi 3xMEMS-ACC devices are designed for a tailor-made structural health monitoring solution and thus ideal for permanent condition monitoring on big structures such as bridges, buildings, antennas, and stadiums.

Download IOLITEd 3x-MEMS-ACC datasheet.

IOLITEdi 3xMEMS-ACC Overview

Distributed EtherCAT Architecture

EtherCAT protocol allows the IOLITEd devices to be easily distributed across large structures. Devices can span 50m node-to-node with only one cable running between them for signal, power, and synchronization.

 

Distributed EtherCAT Architecture

Inclinometer - Measure Roll and Pitch Angle

IOLITEdi 3xMEMS-ACC can also be used as a two-axial inclinometer. It can be used to measure the roll and pitch angles (about its X and Y axes) with the Z-axis positioned vertically.

The angles must be calculated in software. You can easily consult our technical support for providing the software setups.

The requirement needs to be specified at the time of order since an additional calibration procedure is required to guarantee the calibrated accuracy of the device. Ask your local representative​​​​​​​ for the -INC version of the device.

Inclinometer - Measure Roll and Pitch Angle

Seismic Noise Performance

With only 25 µg/√Hz spectral noise density and 100 µg residual noise at 50 Hz bandwidth the IOLITEd data acquisition devices are a cost-effective solution for seismic measurements.

The FFT recorder on the right shows the residual noise of the three axes at the sample rate of 100 S/s resulting in a 96 dB dynamic range.

Seismic Noise Performance

Ready to Measure Displacement

Even though the IOLITEdi 3xMEMS-ACC measures acceleration, it can also be used to precisely measure displacement by integrating the acceleration twice and applying appropriate filtering. The task is straightforward thanks to the DewesoftX data acquisition software.

In the experiment shown below the linear displacement of the IOLITEdi is measured directly with a laser distance sensor and also calculated from measured acceleration. Results show great accuracy even at a low frequency of 1.5 Hz.

Ready to Measure Displacement

Product Testing and Validation

Hardware repairs or replacements are expensive on structures such as bridges. Therefore IOLITEdi-3xMEMS-ACC was put through in-depth product validation tests that ensure reliable operation within its specifications.

Standard testing procedures include vibration and temperature cycle tests to check the durability and specify drifts in measured acceleration.

Product Testing and Validation

Permanent Outdoor Mounting

IOLITEd 3xMEMS-ACC devices can be supplied in a waterproof aluminum casing with cable glands. The enclosure is designed to be mounted outdoor and is fully waterproof. Ask your local representative for the -w version of the device

Cables are inserted through the cable glands at the installation location and crimped to the male RJ45 connectors. The female RJ45 connectors of the IOLITEd 3xMEMS-ACC are located inside the waterproof enclosure. The top lid can be fixed to the enclosure using an O-ring seal and four bolts after the connectors are mated.

The outdoor enclosure automatically vents the air to equalize pressure inside the enclosure to the outside air pressure while it does not allow water to pass into the enclosure. This prolongs the life span of the seal and increases the durability of the enclosure.

DIN

Installation Accessories

Devices are daisy-chained with a standard Ethernet network cable. It is recommended that the cable is shielded (SFTP, CAT5e) and has a minimum of 24 AWG wire thickness. The cable must have 4 wire pairs. The maximum distance node-to-node is 50 m.

A passive PoE (power over ethernet) power injector is necessary for merging the EtherCAT signal and power into a single cable. MonoDAQ-E-PWIN is an industrial power injector with embedded burst and surge protection electronics.

Download the IOLITEd accessories manual.

Installation Accessories

Industrial Application & System Integrations

Systems based on IOLITEd DAQ hardware and DewesoftX DAQ software are installed all over the globe to perform important monitoring functions. One of our bigger system integrators, ESSEBI, is integrating triaxial MEMS accelerometers in permanent structural monitoring systems. Giorgio Sforza, ESSEBI Srl, said:

We are delighted with the noise performance of the device. It allows us to perform operational modal analysis. The ease of use of the total solution together with software is very important to us as it is completely plug-and-play.

Learn more


If you are interested in becoming a system integrator please contact us.

Industrial Application & System Integrations

Logiciel d'acquisition de données

Les systèmes d’acquisition de données Dewesoft sont fournis avec le logiciel primé Dewesoft X Professional, le plus évolué et le plus convivial au monde pour l'acquisition et l'analyse des données. Avec la puissance de DEWESoft X, vous pouvez exploiter pleinement les systèmes d’acquisition de données. Il vous offre de nombreuses fonctionnalités telles que le plug-and-play, la détection automatique du matériel, la compatibilité avec des capteurs intelligents (puce TEDs). Les fonctions avancées de stockage et d'analyse des données éleveront vos tests et essais à un tout autre niveau.

Logiciel d'acquisition de données

Plug and Play

Plug and Play

La connexion du système et des capteurs ne pourrait pas être plus rapide ni plus conviviale. DEWESoft X détecte automatiquement les systèmes connectés, les capteurs équipés de TEDS et régle le setup de la voie pour vous. Des caractéristiques comme :

  • compatibilité avec capteurs intelligents,
  • base de données capteurs,
  • lecture et programmation des TEDs,
  • conversion automatique des unités,
  • aperçu en temps réel,
  • enregistrement du setup dans le fichier de données.

vous prépareront pour la mesure en quelques secondes. Consacrez moins de temps à la configuration de vos systèmes et soyez plus productif. 

Mesurer et Stocker

Mesurer et Stocker

Des puissantes capacités de stockage à des débits supérieurs à 500 Mo/s,  vous permettent d'enregistrer toujours à la plus haute vitesse, ne vous souciez plus des pertes de données susceptibles de compromettre vos essais. Les fonctionnalités DEWESoft X :

  • acquisition des données en temps-réel,
  • acquisition synchronisée des données vidéo, analogiques, compteurs, GPS, CAN bus et de nombreuses autres sources,
  • alarmes et déclenchements avancés,
  • stockage simple ou multi-fichiers,
  • stockage à distance et distribué,
  • séquence d'automatisation des tests.


Même si vous stockez des gigaoctets de données, notre format de fichier innovant vous permettra de charger et d’analyser vos données très rapidement.

Analyser et Publier

Analyser et Publier

Du comportement dynamique des véhicules à l'étude des bruits & vibrations, en passant par l'analyse de puissance électrique et plus encore. Oubliez l'utilisation de plusieurs logiciels complexes pour visualiser et analyser vos données. Dewesoft X propose des outils avancés pour vos besoins :

  • calculs mathématiques en temps réel et en post-traitement,
  • afficheurs temps réel variés et intuitifs,
  • acquisition vidéo synchronisée,
  • édition de rapport en PDF,
  • export de données multi-formats,
  • licence gratuite illimitée pour la relecture et l'analyse des fichiers de données .


DEWESoft X est conçu avec l'esprit des utilisateurs et offre une solution complète dans un logiciel unique plaisant à utiliser...

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