Vibration Detection Technology and Sensing

Vibration detection sensors use high-precision analysis of the vibrations and impacts applied to them to detect intrusion activities such as climbing or cutting fences. By analyzing the frequency characteristics and amplitude of vibration signals based on physical quantities such as displacement, velocity, and acceleration, they distinguish intrusion activities from environmental noise, achieving high detection performance while reducing false alarms. By utilizing laser and optical fiber technologies, they also provide highly reliable intrusion detection that combines excellent detection performance with resistance to false alarms, even when monitoring wide areas over long distances.

Value of Vibration Sensing

Vibration detection is an essential technology for identifying signs of abnormalities in a wide range of applications, from security to equipment monitoring.
Advanced Security
Instantly detects physical intrusion activities such as fence climbing and cutting
Predictive Maintenance
Detects signs of failure from changes in equipment vibration, enabling maintenance to be performed at the optimal time
A major advantage of the vibration-sensing approach is that it can capture information that temperature or light sensing cannot.

Optex’s Unique Strengths and Applications

Optical Fiber Vibration Detection Sensor Technology

Detects phase changes in laser light caused by slight bending of optical fibers installed on fences to identify intrusion activities.

Advanced Algorithms That Eliminate Noise

Analyzes acquired signals in both the time and frequency domains to accurately distinguish environmental noise such as wind and rain from suspicious activities such as climbing and cutting. Stable detection is possible even along extensive perimeters.

Unpowered Sensor Cable

Because the optical fiber method uses no electricity, it is highly resistant to lightning and electromagnetic interference and can also be installed in hazardous areas that require explosion-proof equipment.

Expert Interview

  • Andrew Cechmanek

    DepartmentFIBER SENSYS, INC. Sales & Engineering Support

    The Key to Optical Fiber Vibration Detection Is Environmental Resistance

    A major advantage of vibration detection using optical fiber is that it is completely unaffected by electromagnetic interference from lightning, high-voltage power lines, radar, and other sources. Optex and its group company Fiber SenSys combine this feature with high-precision signal analysis using a bidirectional processor, providing advanced identification capabilities that distinguish climbing from cutting.
    Furthermore, the system’s robust design compliant with U.S. Air Force PL-1 requirements and technology enabling a service life of approximately 20 years provide uninterrupted security for critical infrastructure. This design embodies our field-oriented approach to ensuring reliable operation in harsh environments.

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TECHNOLOGIES

  • OPTEX
  • R&D
  • Vibration Detection Technology