MICROMEGA DYNAMICS S.A. - Feeling the vibes together

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. INTERNAL SIGNAL CONDITIONING The signals from the vibration sensor are amplified and conditioned by the accelerometer unit itself before being passed to the data acquisition system through a disturbed industrial medium. Our accelerometers are equipped either with a voltage output or a 4-20 mA current output.

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.TYPICAL USE Permanent outdoor monitoring of tall structures FEATURES Acceleration measurements along 2 axes Temperature measurement of the surface the sensor is attached to Signals transmission through 4-20mA current loops Embedded Lightning Protection Operation down to -40°C MODELS Standard High Resolution

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.TYPICAL USE Off-shore wind turbine foundations Bridges and piers Historical buildings Structural load testing Vessel and pontoon roll and pitch measurement Crane roll and pitch measurement Structural Health Monitoring FEATURES Biaxial High accuracy and resolution Excellent thermal stability 4-20 mA current loops for signal immunity and potentially long cable runs Enhanced surge protection Internal temperature sensor for residual thermal drift compensation Two models for horizontal or vertical mounting Easy to install

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. 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.

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.“Quick & dirty” vibration monitoring Real-time vibration analysis Real-time frequency and time analysis

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.TYPICAL USE Local or remote vibration measurement; particularly structural monitoring FEATURES Local use with the Recovib.Suite software Synchronized input channels Time management (connection to an NTP server) Very High dynamics (>120 dB)

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. Monitoring of buildings close to quarries following blasting activities generating vibration and/or air overpressure Monitoring of buildings, sensitive equipment and the comfort of residents following surrounding construction work Monitoring of buildings, sensitive equipment and the comfort of residents exposed to road and railway traffic noise Vibration velocity, particle density and air overpressure measurements

TYPICAL USE Install your monitoring devices anywhere Manage your monitoring device anywhere Access your data from anywhere Alert, report visualization tools FEATURES MONITOR Devices can be located anywhere and connected to the RECOVIB.io platform through a wired Ethernet link or through the mobile wireless network (global coverage). Each MONITOR is factory-configured with a connection key that allows for secured device identification on the recovib.io platform and communication encryption. The MONITOR embedded software automatically takes care of re-transmissions and device re-connections in the event of a poor quality communication link or connection loss to the RECOVIB.IO platform – allowing for a high quality of service even from remote and unattended locations. Monitoring Devices status, connectivity and configuration can be managed remotely making deployment and installation a seamless operation.

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.

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 (Vib@Work Seat, Vib@Work Floor & Vib@Work 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).