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

7-YEAR WARRANTY

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.

Acceleration
Acceleration
Vibrations
Vibrations
Angle
Angle
EtherCAT
EtherCAT
IP67
IP67
Shock rating 50g
Shock rating 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

Data Acquisition Software Included for Free

All Dewesoft data acquisition systems are bundled with award-winning DewesoftX data acquisition software. DewesoftX is the world's most advanced and easy-to-use data acquisition and signal processing software. Its flexibility and endless functionality for signal processing will help you solve all your test and measurement needs. Our DAQ software gives you many advantages over other DAQ systems. Functionalities like plug-and-play, hardware auto-detection, smart TEDS sensors, advanced storing, real-time displays, and a never-ending math library will elevate your measurement and analysis capabilities to a whole new level.

And the best part? DewesoftX DAQ software offers lifetime FREE software updates and technical support to all users. Software is evolving all the time. New major releases are released every 3 months constantly adding new features, optimization, and other improvements. No hidden upgrade costs.


Data Acquisition Software Included for Free

Plug and Play

Plug and Play

Connecting the DAQ system and sensors could not be faster or easier. DewesoftX software will automatically detect the connected DAQ systems and TEDS-equipped sensors and will configure the entire channel configuration for you. Features like:

  • hardware auto-detection,
  • smart sensors,
  • sensor database,
  • advanced TEDS sensor support,
  • automatic unit conversion,
  • real-time signal preview,
  • store setup files


will make you ready for measurement in seconds. Spend less time configuring your DAQ systems and be more productive. Time is money!

Measure and Store

Measure and Store

Powerful storing capabilities with more than 500 MB/s sustained stream rates mean you can always store data at full speed and never again worry about losing data that could compromise your tests. DewesoftX software features:

  • real-time data acquisition,
  • synchronized acquisition of analog, counter, video, GPS, CAN bus, and many other sources,
  • advanced triggering and alarms,
  • single or multi-file storage,
  • remote and distributed network storing,
  • automated test sequences.


Even if you store gigabytes of data, our innovative data file format​​​​​​​ will ensure you can load and analyze your data as fast as in a blink of an eye.

Analyse and Publish

Analyse and Publish

From NVH to Power Analysis and much more. Forget about using several and complex software solutions just to record, store, analyze, and visualize your data. DewesoftX offers all-in-one advanced data visualization, analysis, and reporting tools:

  • online and offline mathematics,
  • flexible real-time visual displays,
  • synchronized video support,
  • PDF reporting tools,
  • data export to many standard file formats,
  • unlimited FREE licenses to view and analyze stored data files.


DewesoftX is designed with the mindset of a test engineer and offers a complete testing solution in a single software package that is a joy to use.

FAQ

Do Dewesoft DAQ systems really come with 7-year warranty?

The Dewesoft 7-Year warranty applies to all our data acquisition systems. You buy it, own it, use it, and our warranty keeps you covered. We build our equipment to last. We guarantee you that your hardware will be free from defects and functional. Our warranty covers that the instruments function as promised for a period of 7 years from the day of the delivery.

 

Do Dewesoft DAQ systems really include free software?

Yes! All Dewesoft data acquisition systems include DewesoftX Professional software for free with no extra charge.
DewesoftX Professional includes advanced features for data storing, visualization, export, and also includes an extensive math library for signal processing.

 

Do Dewesoft DAQ systems really include lifetime free software updates?

Yes. All the updates to our software are free forever. We release a new major version every two months. All the performance updates, new features, and bug fixes are available for free to all existing Dewesoft users by simply download our installer from the website.

 

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