Vibration sensors for harsh environments

Tiny vibration recorders and usb accelerometers

End-to-end connected monitoring devices

Whole Body and Hand Arm Vibration Meters

Feeling the vibes together

Micromega Dynamics proposes innovative solutions in the field of online structure monitoring, structural vibration reduction and high-precision mechanisms.

These solutions have been deployed in demanding environments such as on-shore and off-shore wind turbines, railways, quarries, construction works, rotating machinery, outdoor structures and large telescopes where performance and reliability are essential.

In addition to off-the-shelf products, Micromega proposes engineering services in order to help you to design, manufacture and implement dedicated industrial solutions in the field of on-line monitoring, vibration reduction and high-precision mechanisms.

With hundreds of customers all over the world, we have a background of 20 years in the design and production of mechatronic devices for monitoring and reducing structural vibrations.

NEWS

Micromega Dynamics participated in the design of the image correction device of the DKIST solar telescope.

The primary mirror of the DKIST telescope that took these pictures of the sun is shaped by dozens of actuators designed and manufactured by Micromega Dynamics for the AMOS company. Credit: NSO/NSF/AURA

Industrial Accelerometers

The RECOVIB® industrial accelerometers bridge the gap between the performance of laboratory accelerometers (which are often expensive, fragile and offer low protection) and the robustness of industrial accelerometers (which are sometimes cheaper but often noisy and inaccurate).

Our accelerometers can be deployed in industrial environments for monitoring machinery or structures.

The RECOVIB® accelerometers are of proven design and the majority of the models available are widely used in a variety of fields, such as the machine tools, precision machining and on-shore and off-shore wind energy sectors in monitoring or active vibration control applications.

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Structural Health Sensors

The Structural Health Sensors combine a 2-axis accelerometer with a temperature sensor. Their enhanced internal surge protection and electromagnetic interference immunity make them particularly suitable for the permanent monitoring of outdoor tall structures. The Structural Health Sensors can perform measurements in extreme conditions ranging from -40°C to +85°C. They are of course dust and watertight to IP66. We have a proven track record of several thousands of such sensors operating reliably around the world.

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Inclinometers

Those dual axis inclinometers are designed to measure very small changes from the vertical level, either on the ground or in structures.

They exhibit high resolution and low thermal drift. Their mechanical design and enhanced internal surge protection make them particularly useful for the permanent outdoor monitoring of structures being subjected to various influences such as loading and foundation settlement.

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TINY Vibration Recorder

The Recovib.Tiny is a 3-axis shock & vibration data logger. It is extremely practical for a vibration diagnosis, offering up to 6 hours of measurement. Its wireless technology and intuitive operation provides substantial time savings in the performance of your measurements. It is the only type of vibration and shock recorder that allows several sensors to be used simultaneously in a synchronized manner enabling the performance of modal analyses and operational deflection shape analyses on large structures such as bridges or Walkways.

We offer different measuring ranges: ± 2/6G, ± 15G, ± 200G.

It is able to record 1024 acceleration values (shocks and vibrations) per channel per second.

The RECOVIB Tiny is the smallest, lightest and the most robust recorder on the market that is able
to perform recordings in extreme conditions ranging from -10°C to +50°C. It is also dust and watertight to IP65.

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FEEL USB Accelerometer

RECOVIB Feel has been designed for performing an immediate vibratory analysis. It is connected to an Android device or tablet PC via a USB connection. The supplied application enables the streaming of real-time vibration data on a chart in the time domain and in the frequency domain. While streaming, it is possible to record vibration data in order to replay it in a data viewer, on your smartphone or your PC. The viewer allows for a detailed analysis of the vibrations recorded in the time domain and in the frequency domain.

Various signal processing options are available: high-pass, low-pass and band-pass filters, integrator filters (velocity mode) and dual-integrator filters (displacement mode). In the frequency domain, several FFT-based computations are offered: Amplitude Spectrum, Peak and RMS, Power Spectrum, Power Spectral Density and Amplitude Spectral Density.

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MONITOR Acquisition Systems

The Recovib.Monitor devices are industrial grade multi-purpose acquisition and monitoring systems. They provide a full embedded solution for connecting up to eight sensors (current loop, IEPE, single-ended/differential voltage) to a hardware platform that can acquire process, store and display data in several ways.

They can either stream sensor’s raw data to a local machine or send secured messages to the Recovib.io platform. In that mode, they can be remotely configured and customized to fit customer’s needs.

Based on our extensive background in wind turbine structural parts monitoring, the MONITOR devices provide flexibility, precision measurement and dependability – even in harsh, remote environments.

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SHIVER Environmental Vibrations

The RECOVIB.SHIVER are outdoor stations dedicated to the monitoring of site emission levels and able to report vibration, particle density and air pressure.

The SHIVER devices are linked to the recovib.io platform (Micromega Dynamics Cloud Software) in order to offer a near real-time reporting solution with norm comparison.

The use of SHIVER devices ensures environmental and workplace compliance and helps to maintain good relationships with neighboring people and businesses.

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Recovib.io Cloud Platform

Remote processing, visualization, alert, report and storage management of measurements from Recovib.monitor and Recovib.Shiver devices.

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RECOVIB Suite software

The free RECOVIB.SUITE software allows the user to set up the various RECOVIB® devices (Tiny, Feel & Monitor), to visualize recorded data and to convert them to various data formats (txt, wav, MATLAB, LabVIEW, HDF5 etc.).

The free Recovib.Suite is composed of 5 application modules:

The Recovib.Tiny Module allows the user to set up the Recovib.Tiny vibration recorder (i.e. to define the recording period) and to download the recorded data to the host PC.
The Recovib.Feel Module allows the user to visualize and record signals acquired with the Recovib.Feel USB vibration sensor connected to the host PC.
The Recovib.Monitor Module allows the user to visualize and record signals acquired with Recovib.Monitor acquisition systems connected to the host PC.
The Recovib.Converter Module allows the user to export the data recorded by the Recovib devices in various data formats (txt, wav, MATLAB, LabVIEW, HDF5 etc.).
The Recovib.Viewer Module allows the user to replay the data recorded by the Recovib devices.

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Whole-body vibration meters

Our innovative measurement system allows for vibration measurements to be taken of whole-body vibration exposure according to ISO 2631. Its autonomous sensors that do not need to be wired during measurements and automated artefact detection provide for a user-friendly implementation and use (can be used by non-experts).
Stored data is downloaded from the sensor(s) at the end of the working period to a smartphone or a PC using a Bluetooth connection.

The software allows for the automatic computation and display of workers’ exposure to whole-body vibrations and indicates how such exposure compares with the limit and action values defined in the vibration Directive.

The set of whole-body vibration meters ([email protected] Seat, [email protected] Floor & [email protected] Detect) can measure the vibration exposure of either seated or standing operators. In addition, when used in conjunction, seat efficiency can also be measured (i.e. S.E.A.T. factors).

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Hand-arm vibration meters

Our innovative measurement system allows for vibration measurements to be taken on handheld tools thanks to autonomous sensors that do not need to be wired during measurements.

Stored data is downloaded from the sensor(s) at the end of the working period using a docking station connected to a PC.

The software allows for the automatic computation and display of workers’ exposure to hand-arm vibration and indicates how such exposure compares with the limit and action values defined in the vibration Directive.

In order to cover the full range of existing handheld tools, two sensors have been developed: one for usual vibrating tools while another is dedicated to highly percussive tools that generate high levels of shock (Up to 50 000 m/s²).

Our measuring device that can be attached to any type of tool, is currently the only device capable of taking accurate vibration measurements without disturbing workers’ tasks with annoying and fragile cabling. A special version of the sensor is specifically designed for measurements on highly percussive tools.

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Passive Damping Devices

Experiencing excessive vibrations in sensitive mechanical structures or rotating machinery? Tuned Mass Dampers (TMD) and Tuned Mass Absorbers (TMA) provide a simple and effective solution to reduce them.
TMA and TMD are mechanical resonant devices used to suppress or absorb vibrations. When installed properly on a machine or structure, they draw away vibrational energy from the structure or machine and dissipate it internally, hence reducing their motion.

They do not require a redesign of the target structure/machine and do not interfere with the main structure/machine function. This makes them an ideal solution for existing machine retrofitting/troubleshooting.

TMA and TMD have been successfully implemented on rotating machines such as large water pumps, rotary no-break systems, chemical reactors, wind turbine gearboxes and scroll compressors etc.

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Active Damping Devices

Do you have highly precise and very sensitive equipment, such as a microscope, an inspection device, an imaging system or a polishing machine and is the use of an active or passive isolation platform , insufficient?
It may be that local/global resonances are degrading the performance of the isolation system, because it is not stiff enough or because perturbation sources are located on the isolated part.

In such a case, our Active Damping Devices provide a solution by introducing structural damping into most of the unwanted mechanical resonances. Up to 15% structural damping can be achieved, without any major redesign effort. Compared to passive dampers, the ADD are lighter and not sensitive to changes in the supporting structure dynamics.

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