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Pulse

Digital Accelerometer Unit

Pulse digital accelerometer product image

The Pulse digital accelerometer unit is a compact, digital accelerometer designed for cost-effective and accessible Structural Health Monitoring (SHM) of small to medium-sized structures. We engineered for permanent installations. In simple words, the Pulse combines reliable performance with simplicity, making it an ideal entry-level solution for real-time vibration and environmental monitoring.

Pulse integrates a tri-axial MEMS accelerometer with a 20-bit ADC, offering accurate measurement of structural vibrations. Its simplicity and flexibility support Ethernet and Wi-Fi communication. Furthermore, the DigiSync® technology ensures precise time-stamping. Additionally, the device is integrated into the xPlorer Home central station or Digitex Cloud for system-level monitoring. Unlike other product families, Pulse’s lightweight IP40-rated enclosure is easy to install in buildings, houses, and small infrastructure projects where budget and simplicity are key factors.

Technical Specifications

General20-bit; Sampling Rate: 200 sps (100, 500,1000); Anti-Aliasing Software Filters; Wi-Fi, Ethernet, GSM Communication; 3 Channels
PhysicalABS enclosure (UL94V-0); IP40/IP67 Protection; Weight: 0.1 kg; Dimensions: 100 × 100 × 25 mm
PowerPowering: USB port, AT/AF POE; Input Voltage: 5 VDC (UPS battery opt); Power Consumption: > 1W; Internal Sensor Power
User InterfaceInformational LEDs; Web app panel
Embedded AccelerometerFull Scale: ±2/4/8g (user selectable); White Noise: 22.5μg/√Hz; Dynamic Range: 87 dB; Scale Factor: 900mV/g; Bandwidth (3dB): Up to 1kHz (selectable)
EnvironmentalOperating Temperature: -40°C to 55°C; 90% non-condensing

Key Features of the Pulse

  • Compact and Lightweight: Less than 100 g with simple two-screw mounting.
  • Integrated Sensing: Built-in tri-axial MEMS accelerometer (20 μg/√Hz).
  • Optional Environmental Sensing: Temperature, humidity, including pressure channels integrated in parallel with acceleration (total of 6 channels).
  • DXTag Support: Connect up to 5 wireless Bluetooth tags, each measuring temperature, humidity, and pressure, enabling up to 15 additional channels.
  • Flexible Communication: Ethernet, Wi-Fi, or optional PoE for seamless connectivity.
  • Real-Time Data Streaming: Continuous transmission of acceleration and environmental data to xPlorer Home or Digitex Cloud.
  • Store&Forward® Technology: Prevents data loss during communication disruptions.
  • DigiSync® Time Synchronization: Ensures accurate alignment of all sensor data in the system.
  • User Configurable Sampling: 1, 50, 100, or 200 samples per second (200 sps default).
  • Web Interface: Easy device setup on top of configuration from any browser.
  • Software Compatibility: Fully supported by Voyager® for acquisition and Observer® for advanced analysis.
  • Rugged Design: IP40 protection suitable for indoor installations in civil engineering environments.
  • LowPower, Permanent Install: Designed for continuous, unattended operation.

Pulse is suitable for: 

  • Monitoring of residential and commercial buildings for vibrations and structural response.
  • Low-cost permanent SHM systems where the budget is critical.
  • Condition monitoring of small infrastructure (e.g., pedestrian bridges, retaining walls).
  • Post-event structural assessment after earthquakes or extreme events.
  • Integration of environmental data (temperature, humidity, pressure) with structural vibration monitoring for enhanced analysis

Benefits of Using the Pulse

  • Affordable SHM entry point without compromising reliability.
  • Provides both vibration and environmental monitoring in a single device.
  • Easily expandable through DXTags for multi-point environmental data collection.
  • Minimizes installation effort with compact, lightweight design and easy mounting.
  • Reduces risk of data loss with Store&Forward® and DigiSync® synchronization.
  • Fully integrates with Digitex ecosystem: xPlorer Home, Voyager®, and Observer®.

Ready to Elevate Your Project?

After all, Digitex Systems deeply nurtures the partnership with engineers, researchers, and asset managers worldwide. That’s why Digitex Systems delivers reliable, field-proven Structural Health Monitoring solutions.

Additionally, if you are planning a new monitoring system or upgrading an existing installation, our team provides expert guidance tailored to your project’s requirements.

Most importantly, feel free to check our solutions focused on accuracy, reliability, and long-term performance backed by decades of experience in dams, bridges, tunnels, mines, as well as high-rise infrastructure.

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