PICLIA Piezoelectric Wire Sensor for Bridge Monitoring

Capturing the subtle vibrations of bridges over a wide area, contributing to the maintenance of structural integrity.

In the maintenance and management of bridges, it is important to continuously monitor changes in vibrations and deformations caused by traffic loads, wind, temperature fluctuations, and aging deterioration, and to detect signs of abnormalities at an early stage. In particular, areas such as the main girder, deck slab, and bearing sections are prone to accumulate subtle changes that are difficult to detect through visual inspections alone, necessitating regular condition monitoring to maintain the structural integrity. The PICLIA piezoelectric wire sensor, with its thin and flexible wire shape, can be easily installed on curved surfaces, narrow spaces, and existing structures, allowing for extensive sensing of vibrations, strains, and impacts occurring in bridges. This contributes to the monitoring of bridge conditions, the detection of deterioration signs, and the optimization of maintenance plans. [Usage Scenarios] - Detection of signs of cracking and corrosion: By continuously monitoring subtle changes in structures, it complements visual inspections and contributes to the early detection of abnormalities. - Monitoring behavior due to traffic loads: Records the effects of repeated loads from moving vehicles, aiding in understanding deterioration trends according to the usage environment. - Comparative evaluation before and after repairs: Compares changes in vibration characteristics before and after repairs or reinforcements, aiding in maintenance management decisions. - Retrofitting monitoring on existing bridges: Can be easily installed on curved surfaces and narrow spaces, useful for additional installations or enhanced inspections of existing infrastructure.

PICLIA Ribbon Dual Sensor (Piezoelectric & Capacitive)

basic information

【Features】 ♦ Wire-shaped piezoelectric sensor ♦ Wide bandwidth (0.1 to several MHz), capable of observing vibrations over a wide area rather than just at a point 　⇒ Collects low to high frequencies all at once for overall preventive maintenance of equipment ♦ Acquires pressure, vibration, impact, and vital signals with a thin wire ♦ Responds to physical deformation, can be mounted to conform to shapes such as curved surfaces and gloves 　⇒ Application examples: industrial equipment, medical, wearable, sports, etc. ♦ High sensitivity acquisition of weak signals like heartbeat and respiration (Min. 0.003N) ♦ No power supply required ⇒ Contributes to low power consumption systems ♦ Same structure as coaxial cables, capable of sensing with low noise ♦ Usable in harsh environments such as water, oil/solvents, and high temperatures ♦ Environmentally compatible from -40 to 120℃, 10 million cycles of bend resistance ⇒ High durability ♦ Integrated molding with resin (up to 120℃) such as urethane, TPU, silicone, epoxy, etc.

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Applications/Examples of results

【Application Examples】 ■ Medical and Nursing (Monitoring): Behavior and health monitoring using chairs/beds/foot mats (disinfection and sterilization compatible) ■ Industrial Equipment (Measurement, Predictive Maintenance): Vibration monitoring of equipment, molds, and parts ⇒ Rotation, vibration, leak 　　　　　　　　　　　　　　　(Operating environment: -40℃ to 120℃, 0.1Hz to ultrasonic range) ■ Resin Parts (Predictive Maintenance): Vibration, rotation, leak, and accumulation monitoring for parts where magnet attachment is difficult, such as bearings, valves, and resin piping 　　　　　　　　　　　(Integrated molding: EVA, urethane, TPU, silicone, epoxy, etc.) ■ Wearable (Measurement): Vibration monitoring in glove form (quality control, sports) ■ Robotics (Tactile): Robot motion (motion errors, arm vibration), integrated cables ■ Automotive (Autonomous Driving): Detection of health abnormalities (vital signs and center of gravity shifts), bumper collision detection ■ Security (Crime Prevention): Intrusion detection using wired networks, pest control ■ Others (Structural Deterioration Detection): Deterioration detection of pillars and beams in important cultural properties *Installed by wrapping without drilling holes *For more details, please refer to the catalog or feel free to contact us.