Precision LVDT-Based Displacement Crack Sensors for Structural Insight
High-resolution displacement monitoring sensors designed for durability and accuracy in demanding environments
High-Accuracy LVDT Crack Sensors for Critical Infrastructure Projects
Displacement crack sensors using LVDT (Linear Variable Differential Transformer) technology offer industry-leading precision by measuring millimeter and sub-millimeter movements across crack locations. These sensors are ideal for detecting early-stage structural shifts and ensuring safety through continuous data capture. They are essential tools for projects requiring high accuracy and long-term monitoring, such as research facilities, tunnels, dams, and nuclear containment systems.
Damage Detection Tech, a B2B company operating across North America from our base in Toledo, OH, brings these advanced sensor solutions to customers with a strong focus on innovation, product reliability, and customer support. By integrating LVDT sensors with scalable systems, expert guidance, and quality assurance practices, we help businesses implement proactive structural health monitoring and risk mitigation strategies.
Enhanced Capabilities via Trusted Partners
In addition to offering products and systems developed by our team and trusted partners for Displacement Crack Sensors (LVDT-Based), we are proud to carry top-tier technologies from Global Advanced Operations Tek Inc. (GAO Tek Inc.) and Global Advanced Operations RFID Inc. (GAO RFID Inc.). These reliable, high-quality products and systems enhance our ability to deliver comprehensive technologies, integrations, and services you can trust. Where relevant, we have provided direct links to select products and systems from GAO Tek Inc. and GAO RFID Inc.
System Components
High-Precision LVDT Sensors
- Offers 0–50 cm range, supports analog or digital outputs
- Resolution down to 0.1 µm, linearity error ±0.25%, robust IP64 stainless enclosure
- Range up to 10 cm, non-contact AC-driven design
- Repeatability 5–10 µm, IP64-rated, ideal for fine structural movements
Wireless Communication & Logging
- GAO RFID 433 MHz Active Data Logger
Captures LVDT outputs and transmits to central units with configurable sampling intervals. - GAO RFID 2.45 GHz Gateway
Aggregates logs from multiple sensors across large-scale projects, enabling remote access and expansion.
Monitoring Software Platform
- GAO Tek Structural Health Monitoring Suite
Real-time dashboards, historical trend analysis, and adaptable alert thresholds. Allows data export (CSV) and SCADA or maintenance system integrations.
Optional Environmental Tagging
Measures ambient temperature and humidity near sensor installations, enhancing data accuracy and interpretation under environmental stress.
Key Features and Functionalities
- High-resolution detection with sensitivity down to <0.01 mm for precise crack monitoring
- Robust mechanical construction suitable for harsh environments
- Non-contact core sensor within a durable rod housing for minimal intrusion
- Automatic signal calibration to adjust for drift over time
- Integration readiness with analog outputs compatible with DAQs and wireless modules
Compatibility
- Suitable for structural materials such as concrete, steel, masonry
- Supports integration with expanded monitoring setups via GAO RFID wireless data acquisition
- Compatible with LVDT interfaces on automated data loggers and SCADA systems
- Assisted by GAO Tek structural monitoring software for visualization and alerting
Applications
- Sub-millimeter crack movement tracking in tunnels and underground structures
- Dam and spillway crack displacement monitoring
- Structural research requiring precise displacement data
- Nuclear facility containment joint monitoring
- Retaining wall or embankment displacement analysis
- Post-earthquake structural movement analysis
Industries Served
- Civil and structural engineering
- Infrastructure and transportation
- Energy and power generation
- Mining and geotechnical engineering
- Research institutions and laboratories
- Nuclear and containment structures
Relevant U.S. & Canadian Industry Standards
- ASTM E644 – Calibration of Displacement Transducers
- ASTM D6784 – Geotechnical Sensor Performance
- ACI 228.2R – Concrete Nondestructive Test Methods
- CSA S6 – Canadian Highway Bridge Design Code
Case Study
Tunnel Crack Monitoring, Pennsylvania
A transit authority employed our LVDT displacement crack sensors within an operational tunnel to detect sub-millimeter movements during peak service hours. Continuous monitoring enabled after-hours inspection scheduling, reducing service disruptions and enhancing safety measures.
Case Study
Dam Spillway Movement Tracking, Texas
A regional water authority installed LVDT sensors on a concrete spillway to monitor displacement during high-flow events. The data captured critical movements, guiding maintenance activities and lowering emergency response costs.
Case Study
Research Center Structural Analysis, Ontario
A technical university implemented LVDT-based sensors across research facility experimental structures. Real-time, high-precision displacement data supported post-load testing, ensuring accurate analysis and advancing engineering research.
Interested in advanced displacement crack monitoring?
Contact Damage Detection Tech today. Our team can help you choose the ideal LVDT system, design a tailored monitoring solution, and provide technical assistance—empowering your structural health initiatives with precision and confidence.