Description

Low-Frequency Structural Vibration Accelerometer for Long-Term SHM

HBK B&K Type 8340 is a high-sensitivity structural vibration
accelerometer designed for long-term monitoring of dynamic behavior in
civil and industrial structures.

This sensor is optimized for low-frequency and low-amplitude vibration
measurement, making it suitable for Structural Health Monitoring (SHM)
applications where changes in modal properties and structural response are
key indicators of integrity and performance.

Measured Parameters

• Structural vibration acceleration (low-frequency range)
• Dynamic response to environmental and operational loads
• Long-term vibration trends and modal behavior

Sensor Capabilities

• High-sensitivity accelerometer optimized for low-frequency motion
• Low noise floor for micro-vibration detection
• Excellent long-term stability for permanent installations
• Designed for continuous structural monitoring

Data Output & Integration

• Analog accelerometer output
• Requires compatible DAQ or SHM monitoring system
• Suitable for modal analysis and dynamic response evaluation
• Integration with SHM platforms and structural monitoring dashboards

Typical Applications

• Bridges and civil infrastructure
• Buildings and high-rise structures
• Towers, stacks, and masts
• Offshore and industrial structural systems

infrascan Integration

HBK B&K Type 8340 accelerometers can be integrated into InfraScan monitoring
systems as reference-grade structural vibration sensors, enabling continuous
assessment of structural dynamics, modal changes, and long-term integrity.

These sensors are typically combined with tilt sensors, GNSS displacement
monitoring, and crack sensors to build comprehensive SHM architectures for
critical infrastructure.