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27

2026/08

DIC systemDIC selection
How to Choose Among 2D, Stereo 3D and Single-Camera 3D DIC?

DIC system selection is not about the number of physical cameras, but whether the system can obtain calibratable, computable different viewing angles. Selection should not start from how many cameras are used, but from how the specimen will deform and what data is needed.

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04

2026/08

DIC large-deformation measurementLarge strain measurementDIC system
How Much Deformation Can a DIC System Measure?

DIC is often used for large-deformation testing of rubber, plastics, flexible materials and composites. Unlike contact measurement with a fixed gauge length, DIC computes displacement by continuously tracking surface speckle features, so it has a large deformation measurement range.

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04

2026/08

High-temperature DIC measurementDigital image correlation methodFull-field strain
Why Is DIC Measurement Harder in High-Temperature Tests?

High-temperature environments simultaneously affect image contrast, speckle stability, air refractive index and system calibration. This article analyzes the influence of thermal radiation, heat flow disturbance, surface oxidation and observation windows on high-temperature DIC measurement.

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04

2026/08

DIC subsetDIC errorDigital image correlation method
Why Does the Same Set of DIC Images Yield Different Strain Results?

With the same set of DIC images, different subset sizes, calculation step sizes, strain windows and filtering settings may yield different strain results. Parameter selection is essentially a balance among spatial resolution, stability and local detail.

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04

2026/08

DIC systemFull-field strainFinite element simulation
Why Don't DIC Test Results Match Finite Element Simulations?

DIC test results differing from finite element simulation does not necessarily mean the test or model is wrong. Coordinate systems, boundary conditions, material models, spatial resolution and data mapping all affect the comparison.

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04

2026/08

Tunnel safety monitoringTunnel structural monitoringAutomated tunnel monitoring
What Does Tunnel Safety Monitoring Cover? Differences Between Construction and Operation Stages

What does tunnel safety monitoring mainly monitor? This article introduces the differences between construction-stage and operation-stage tunnel monitoring, and the monitoring logic of convergence, settlement, lining deformation, cracks and water seepage.

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04

2026/08

Bridge safety monitoringBridge structural health monitoringBridge displacement monitoring
Why One Snapshot Is Not Enough for Bridge Safety Monitoring: Indicators for Online Monitoring

Which indicators should bridge safety monitoring cover? Based on the Ministry of Transport's bridge monitoring specifications and long-span bridge data application guidelines, this article introduces the monitoring logic of displacement, vibration, strain, cable force and environmental loads.

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04

2026/08

Metro safety monitoringMetro structural monitoringMetro settlement monitoring
What Does Metro Safety Monitoring Cover? The Complete Logic from Structural Displacement to Risk Warning

What does metro safety monitoring mainly monitor? Starting from stations, running tunnels, tracks and surrounding environments, this article introduces displacement, settlement and deformation monitoring methods, and how automated monitoring supports risk warning.

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28

2026/07

Slope monitoringAutomated slope monitoring
How to Achieve Long-Term Automated Displacement Monitoring of Highway Slopes: Vision Monitoring Solutions and Cases

The difficulty of highway slope displacement monitoring is not only whether displacement can be measured, but also whether equipment can run long-term in remote environments, how site power and communication are solved, how large-span slopes are flexibly arranged, and whether timely warning is possible after anomalies.

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23

2026/07

Video extensometerVideo extensometer price
How Much Does a Video Extensometer Cost? Price Structure, Budgeting and Inquiry Tips

There is no uniform price for video extensometers. Price is mainly determined by camera and lens configuration, 2D/3D scheme, accuracy class, temperature range and software modules; at the same configuration, imported brands are usually significantly more expensive than domestic ones. Rather than comparing total prices...

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