Reliable Hydraulic & Mechanical Extensometers for Field Use
Monitor displacement with robust, field-proven extensometers designed for structural, geotechnical, and materials testing.

Overview
Designed for high-precision structural and geotechnical monitoring, hydraulic and mechanical extensometers are essential tools in displacement measurement. This webpage outlines how these devices function, their applications, and why they’re vital in real-time field and lab settings. As a B2B company serving North America, Displacement Deformation delivers dependable extensometry solutions built to withstand harsh environments and complex monitoring needs. The information provided includes features, technical compatibility, and key standards these systems meet. Case studies from the U.S. and Canada highlight their real-world utility. Displacement Deformation’s leadership in product reliability, innovation, and support has positioned us as a go-to source for advanced deformation measurement systems.
Expanded Capabilities Through Strategic Product Partnerships
In addition to offering products and systems developed by our team and trusted partners for Hydraulic and Mechanical Extensometers, 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.
Core Components
Hardware Components
Provides reliable metal detection with a sensing distance of up to 20 mm and a quick response time.
Interfaces with sensors for real-time signal processing and relay activation.
Logs activation events and allows remote status monitoring and system diagnostics.
Software Components
Configure sensor thresholds, assign relay outputs, and view live sensor status over Ethernet or USB.
Key Features and Functionalities
- Rugged, corrosion-resistant bodies for harsh environments
- Measurement ranges up to 100 mm or more
- High-precision dial or digital gauges
- Hydraulic variants ideal for long-gauge applications
- Mechanical types for short-span and spot monitoring
- Real-time monitoring with optional data loggers
- Compatibility
- Interfaces with analog and digital data acquisition systems
- Compatible with wireless sensor networks and telemetry systems
- Designed for easy installation on concrete, steel, rock, and soil
- Applications
- Tunnel and mine convergence monitoring
- Bridge and dam deformation tracking
- Structural health analysis of retaining walls
- Soil-structure interaction assessment
- Laboratory testing for construction materials
- Industries Served
- Civil Engineering & Infrastructure
- Mining & Geotechnical Engineering
- Transportation & Railways
- Energy & Utilities
- Academic & Research Institutions
- Relevant U.S. & Canadian Industry Standards
- ASTM D4431 (U.S.)
- ASTM E83 (U.S.)
- AASHTO R18 (U.S.)
- CSA S6 (Canada)
Case Studies
1. U.S. – Tunnel Stability Monitoring in Colorado
Displacement Deformation supplied hydraulic extensometers for a major tunneling project in the Rocky Mountains. The devices provided continuous convergence data, allowing engineers to make quick decisions to prevent failure and ensure worker safety.
2. U.S. – Bridge Abutment Displacement in Pennsylvania
Mechanical extensometers from our product line were deployed to monitor abutment movement on a high-traffic overpass. Data collected helped the DOT verify long-term stability and reduce repair costs.
3. Canada – Retaining Wall Displacement in Ontario
In collaboration with a Canadian geotechnical firm, we delivered extensometers to track the displacement of a large retaining wall near a rail corridor. Measurements supported successful rehabilitation and structural re-certification.
Contact Us
To learn more about how our Hydraulic and Mechanical Extensometers can support your next project, visit our Contact Us page.
Displacement Deformation is ready to provide expert guidance, quotes, and technical support tailored to your requirements.