Worldsensing’s Vibration Meter is a wireless sensor for automated, long-term vibration monitoring, using a triaxial accelerometer and edge algorithm to detect when vibration thresholds are exceeded.

Internal or external antenna

Choose an external antenna for structural monitoring, seismic intensity mapping, and building comfort vibration assessment, or an internal antenna for general building and structural assessments.

Four operational modes

Multiple operational modes to address a diverse range of vibration monitoring applications. Each mode is designed to extract key parameters for specific scenarios, enabling accurate assessment of structural behavior, ground response, and human comfort.

Alert mode

Use the secondary threshold to have highly critical events reported automatically in a shorter reporting period

Raw data storage

Specific mode raw data (i.e. waveforms for PPV) are stored in the device’s internal memory for the relevant events. Downloadable via local connection or Bluetooth, via Worldsensing App.

Vibration Meter main technical specifications

Sensor type
3-axis MEMS accelerometer
Secondary sensor
Temperature sensor
Relative humidity sensor
Device variants
- Vibration-XHP with external antenna for high precision applications
- Vibration-IHP/Vibration-IR with internal antena for general building and structural assessment
Operational modes
MTVV, PPV, PGA, PSA
Power source
1 x 3.6 V D-size replaceable battery
Operating temperature
-40º C to 80º C
Weather protection
IP68
Device configuration
- Worldsensing App
- CMT Edge
- CMT Cloud

Accelerometer

Original sampling rate
4k Hz
Original frequency band
DC - 1000 Hz
Noise floor
- 22.5 μg/√Hz for Vibration-IHP/Vibration-XHP
- 75 μg/√Hz for Vibration-IR
Accuracy
Within the 5% between 4 and 100 Hz

Battery life estimations in years

Operational mode
Reporting period
Radio config: SF8@20dBm, SF9@14dBm
Acquisition parameters
PPV
30 min
1.8
Analysis time 60s, One alert activation per day
MTVV
30 min
1.9
One alert activation per day
PGA
30 min
2.1
sps=250Hz, One alert activation per day
PSA
30 min
2.5
sps=250Hz, Always on without trigger
PSA
30 min
8.3
sps=250Hz, Always with trigger (5 windows per RP)
Show full table +

Vibration Meter operational modes

The Vibration Meter offers multiple operational modes to address a diverse range of vibration monitoring applications. Each mode is designed to extract key parameters for spefic scenarios, enabling accurate assessment of structural behavior, ground response, and human comfort.

PPV, Particle Peak Velocity

Processes vibration in terms of velocity, providing PPV and predominant frequency, key indicators in geotechnical monitoring. Use the Vibration-IR for extended frequency range.

MTVV, Maximum Transient Vibration Value

Evaluates human comfort inside buildings affected by vibration from construction, mining activities, or infrastructure operation. Based on ISO 2631-2.

PGA, Peak Ground Acceleration

Analyzes vibration acceleration to determine PGA, a core metric in assessing seismic intensity. Used in earthquake engineering for structural analysis. Frequency band and resolution can be adjusted via sampling rate to suit each scenario.

PSA, Power Spectrum Average

Identifies predominant structural frequencies by averaging multiple vibration observations. Ideal for assessing the health of elements such as cables, pillars, or other structural components of a bridge. Triggered acquisition and delayed start help capture resonance while excluding transient noise.

Vibration Meter mounting options

Surface mounting

Using the LS-ACC-IN15-HP plate recommended for both horizontal and vertical mounting. It can be fixed to the surface with anchor rods or glue. Includes a threaded hole available for installing a monitoring prism or a button head screw for precise levelling.

Horizontal surface mounting

Using the compact LS-ACC-IN-HPTM horizontal surface mounting plate. Designed to be glue to the surface for fast and robust fixing.

Horizontal surface mounting with double plate

Using a versatile double plate LS-ACC-IN15DP for horizontal surface mounting to avoid opening the casing for device installation. It can be fixed to the surface with glue. Includes a threaded hole available for installing a monitoring prism or a button head screw for precise levelling.

For a full list of available accessories, check out the

Vibration Meter product datasheet 

Applications

Explore the diverse applications of our wireless sensor, delivering precise vibration monitoring for reliable insights.

Vibrations

Vibration Meter

Monitor the impact of vibrations created by industrial activities on people’s comfort with Worldsensing’s Vibration Meter, designed to operate in compliance with industry standards (ISO 2631-2).

Vibrations for building integrity

Vibration Meter

Monitor the impact of industrial activities on surrounding infrastructure with Worldsensing’s Vibration Meter, designed to operate in compliance with industry standards for building integrity (DIN4150-3 and BS7385-2).

Frequently Asked Questions about the Vibration Meter

What is the Vibration Meter?

The Vibration Meter is a wireless sensor designed to measure vibration levels and detect vibration-based events. It features a tri-axial accelerometer and can detect threshold breaches for vibration-based parameters such as LAW/PPV and frequency.

How does the Vibration Meter work?

The Vibration Meter data sensor uses a 3-axis accelerometer to measure vibration changes. It transmits data via Worldsensing LoRa networks to a CMT Edge for local-access, single-network deployments. For multi-project, multi-network deployments, data can be transmitted via the internet from the gateway to CMT Cloud. Data can be sent to third party software from CMT using standard file transfer protocols: MQTT, REST API, FTP.

What is the maximum interval at which vibration data can be collected?

Devices can be configured at different reporting periods. The highest possible acquisition rate when using Worldsensing is one sample every 30 seconds, and the lowest is one sample every 24 hours.

What is the communication range for the sensor?

The radio range of any of Loadsensing devices varies depending on the environment. In open sight, the range can reach up to 15 km (9.3 mi), while in a city street it is up to 4 km (2.5 mi). When placed in a manhole in a city street, the range is up to 2 km (1.2 mi), and in a tunnel, it extends up to 4 km (2.5 mi).

Is the Vibration Meter in compliance to DIN 4150-3?

Yes, but not exclusively. We process the PPV and frequency parameters required by this specific standard, but these parameters and processing methods are applicable across a wide range of vibration standards that rely on similar indicators. Ultimately, the choice of a particular standard depends on the specific threshold levels used for comparison against the reported data.

Is it required to level the device during installation?

The device can be installed in any orientation, as MEMS sensors don't require specific corrections for different components. It automatically filters gravity effects, so leveling isn't needed, and performance remains unaffected by orientation.

However, data is always reported in the X, Y, and Z axes, with one axis ideally aligned vertically. Small misalignments will introduce minor crosstalk between channels, so while performance is still reliable, it’s recommended to level the sensor for optimal accuracy.

Is an MQTT license required to receive alert messages?

No, an MQTT license is not mandatory for receiving alert messages. Vibration Meter (VM) formats alert messages the same way as regular periodic data messages. The only difference is that alerts are triggered immediately when a vibration exceeds the configured threshold and are appended to previous events.

While MQTT is recommended for its benefits, integration through other methods will also provide access to the data in real time. This differs from other Worldsensing's Tiltmeter Event Detection, where response latency is much more critical.

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What they say about us

Discover how Worldsensing has made a positive impact, providing reliable solutions and exceptional support.

The adoption of Worldsensing IoT technology eliminates the need for cabling, reduces manual monitoring and allows significant savings up to 30% on the acquisition of materials and infrastructure and up to 40% on installation. Read success story

Leonardo Santana
Geotechnology Technical Leader, Tetra Tech

Worldsensing is very easy to use. I think the most important benefit is the wireless connection. This cable-free product is great for locations like tunneling sites. Read success story

Erdmann Jacobeit
Terra Vermessungen

Our customer needed to cover a landfill area of nearly two miles, and although they required solar-powered gateways, they needed data nodes that did not require constant maintenance. We selected the Worldsensing wireless data acquisition system due to its long-range radio, low power consumption, easy implementation and ability to read multiple types of sensors. Read success story

Edmund Kirby
General Manager and Co-Owner, Specto Technology

Worldsensing's IoT technology enables wireless, automated collection of sensor data in the mines for a safer and more work-efficient workplace. Read success story

Sudaryono Widodo
Founder and Director, Solusi Monitoring Indonesia

Using Worldsensing loggers and gateways has enabled us to increase the size and quality of our continuous ground monitoring network throughout the mine, while still remaining efficient about time and resources required.

Darren Neely
Senior Rock Mechanics Engineer, Vascoy Potash, Nutrien

The integration and reporting have been seamless and highly reliable since the start of our project. Trust in the structural health monitoring system lets the mine owner focus on the next steps of the mine construction. Read success story

Vincent Le Borgne
Mining R&D Manager, GEO-Instruments Canada (formerly GKM Consultants)

A great advantage of the Worldsensing system is the ability to change the reading frequency from a click of a finger without the need to go on site. So no need to access every logger to change it, it can all be done online.


Geomotion Australia

In spite of being installed in boreholes with steel covers, or behind the body of the dam with no line of sight to the gateway, the Worldsensing nodes are able to transmit data without the need for repeaters. Read success story

Ludek Novosad
Senior Instrumentation Engineer, Geomonitoring