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Daviteq Inertial Measurement Technologies
Daviteq V1A Vibration Sensor is a vibration sensing module that utilizes the Piezo acceleration sensor to measure the
vibration with a frequency of up to 10 kHz for condition monitoring and preventive maintenance applications.
The piezo-electric accelerometer is available in ranges ±25g or 50g and features a flat frequency response up to
>10kHz. Its accelerometer feature a stable piezo-ceramic crystal in shear mode with low-power electronics, sealed in a
fully hermetic package. The Piezo Electric technology V1A accelerometer has a proven track record for offering the
reliable and long-term stable output required for condition monitoring applications. The accelerometer is designed and
qualified for machine health monitoring and has superior Resolution, Dynamic Range, and Bandwidth to MEMS devices.
Besides that, it can also measure the temperature at the mounting point.
With a built-in ultra-low power microprocessor, it can compute and deliver multiple parameters like velocity RMS/Peak,
acceleration RMS/peak, displacement RMS/pk-pk, frequency, temperature, crest factor...
The V1A can be integrated into the wireless transmitter from Daviteq such as Sub-GHz WS433, LoRaWAN WSLRW, and
Sigfox WSSFC. The connection can be via a 2m cable with an M12 connector or integrated type (WS433 only).
The V1A is also powered by the batteries in the wireless transmitter.
V1A utilizes the single-axis Piezo acceleration sensor to detect the vibration of the object with vibration from 8Hz to 11
kHz.
A built-in high-accuracy solid-state temperature sensor allows the V1A to measure the object's surface temperature.
The microprocessor will capture the raw signal of acceleration and temperature values at a very high speed, up to 290
kHz. With this high-resolution raw signal, it performs various calculations to deliver the high accurate outputs like:
Velocity RMS (mm/s) Velocity Peak (mm/s)
Acceleration RMS (m/s2) Acceleration Peak (m/s2)
Displacement RMS (um) Displacement Peak-Peak (um)
Frequency of Highest amplitude vibration (Hz) Surface Temperature (oC)
These outputs will be sent to the wireless transmitter with a digital signal.
V1A specification
Sensing technology Hermetically Sealed, Piezo-Ceramic Crystal, Shear Mode
Acceleration Range & Shock Limit (g) ±25 or 50, 10,000
Frequency Response and Resonant (Hz) 2 .. 10,000, > 30000
Non-Linearity, Transverse Sensitivity ±2%FSO, < 5%
Temperature measuring and operating -40°C .. +85°C, with accuracy: +/- 0.5 and resolution: 0.125
Sensor Material, rating, and mounting 304SUS, IP67, M6 Screw
Connector M12-M 5-pin (Coding A) with 2m cable or Integral type
Daviteq V1A Vibration Sensor
1. Overview
2. Detail measurement principle and its
specification