Materials Mechanics
Monocular 3D Video Extensometer
2026/03
Choosing a bridge safety monitoring system requires not only equipment parameters but also whether the system fits the bridge scenario, whether data is easy to view and whether the platform supports long-term management. Starting from actual needs such as crack, displacement and deformation monitoring, this article ana...
2026/03
The difficulty of bridge maintenance often lies not in knowing to inspect, but in the large number of bridges, wide distribution, long cycles and complex problem types. For many management units, one of the biggest pressures is how to grasp the bridge condition more efficiently with limited manpower and time.
2026/03
Bridge displacement and deformation monitoring helps management units continuously grasp the bridge's operating state and judge whether structural responses are abnormal. Compared with single inspection, continuous monitoring better identifies trends in displacement, deflection and local deformation. This article analy...
2026/03
Bridge crack monitoring is an important part of bridge safety management. Compared with manual inspection, an online bridge crack monitoring system achieves long-term recording of crack images and data, helping users track width changes and development trends. This article introduces monitoring methods, the advantages ...
2026/03
The bridge safety monitoring system performs long-term continuous monitoring of key bridge states such as cracks, displacement and deformation, helping management units detect anomalies in time and improve maintenance efficiency. This article explains the role, composition, application value and selection direction of ...
2025/11
3D printing has redefined material design boundaries and raised testing challenges. Complex geometry, small specimens and high-temperature loading repeatedly limit traditional contact measurement in installation, range and stability; a non-contact, full-field, visualized testing method is needed.
2025/09
I. Working principles of the two types of non-contact extensometers: the laser extensometer tracks two markers or edge positions with a laser/scan spot and computes the distance change — point-to-point displacement measurement.
2025/09
I. What is an extensometer? An extensometer is a dedicated sensor measuring deformation/strain within the specimen gauge length, converting tiny displacements during loading into recordable data for computing stress-strain curves, elastic modulus, yield strength, r-value/n-value and other indicators.
2025/08
In engineering, vibration testing is an essential part of structural and product reliability verification. It is not simply shaking a product on a vibration table; systematic test methods reveal the dynamic response under real working conditions, providing a scientific basis for design optimization, quality control and...
2025/08
In stereo DIC calibration, accuracy directly affects the credibility of 3D topography and strain data. Synchronous calibration includes geometric calibration and time synchronization; optimization is needed in optics, mechanical installation and signal control.