Stress-Check

Thermoelastic Stress & Fatigue irNDT Solution

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Stress-Check

MoviTHERM Stress-Check uses infrared non-destructive testing (irNDT) Thermoelastic Stress Analysis (TSA) to visualize stress measurement on metals, composites, plastics, glass, bone, concrete, and other materials. Stress-Check leverages the relationship between temperature and mechanical behavior laws with Lock-in Thermography (LiT) to measure the linear thermoelastic effect of a material under periodic, random, or cyclic loading condition. The system works with cooled and uncooled IR cameras with multiple lens configurations to meet various application requirements.

Stress-Check Features

Truck Crankshaft in Torsion Test

Infrared Thermoelastic Stress Image

Stress-Check Brochure

Non-contact Stress Imaging & Measurement
Works with cooled and uncooled IR Cameras
Lock-In Thermography Analysis
Integrates with fatigue testing machines
Multiple Lens Options for Wide Angle and Close-up imaging

Stress-Check Benefits

VISUALIZATION OF STRESS PATTERNS

TSA rapidly “sees” stress characteristics in metallic, ceramic, composite, and other materials.

STRESS MEASUREMENT MADE EASY

Complex analysis technology simplified for stress measurement.

IR THERMOGRAPHY ADVANTAGES

Has many positive aspects of IR measurement.

How does Stress-Check work?

Applying a cyclic compression load on a solid material will cause it to experience small and reversable temperature variations. Synchronizing an infrared camera to the load cycle allows using Lock-in techniques to capture surface temperatures and then convert temperature measurements to stress units on a pixel-by-pixel basis.

Resulting image output displays a stress distribution map and software allows for the extraction of spot stress measurement from any image pixel.

Stress-Check Non-destructive Testing principal

Stress-Check – Technical Specifications

Uncooled Infrared Camera Options		Cooled Infrared Camera Options
Available Resolutions	336 x 256 or 640 x 512	Available Resolutions	640 x 512 or 1280 x 1024
Image Rate	30 Hz / 60 Hz	Image Rate	60 Hz / 120 Hz / 181 Hz / 1000 Hz
Thermal Sensitivity	< 30 mK @ 30°C	Thermal Sensitivity	< 20 mK @ 30°C
PC
PC Type	Office PC, Industrial PC, Laptop (for mobile use)
Supported Operating Systems	Windows 10 Pro 64-bit
Excitation Source
Mechanical Excitation	Load Frame or Similar
IRX-Box
Modulation Box for Synchronization of all Hardware and Software Components
Enables Easy and Compact Measuring Setups
irNDT-Software
Evaluation Modules for Lock-in, Lock-in Online, Lock-in Ref. Online, TSA
Graphical User Interface for easy creation of customized solutions without programming skills
Integrated MS Excel Report Generator for easy set-up of inspection reports, export of inspection data to Matlab, sorting of inspection parameters in workspaces, and storing of result images include measuring parameters
Integrated VB Script-Engine for the creation of macros for solving automated inspection tasks
Result Viewer App – Allows for calibrated spatial defect measurements, including depth
Measuring and Analysis Properties
Parameters for the Excitation Source	Analysis Functions: Pulse, Sine, Trapezoid, Rectangle, Arbitrary Waveform Rectangle Width at Rectangle Modulation: 0.1 – 0.9% Excitation Frequency: 1µHz – 50kHz
Parameters for the IR Camera	Recording Frequency, Integration Time, Temperature Range, Average Temperature, Detector Window, etc.
Parameters for the Analysis	Several Analysis Methods / Lock-In Thermography Automatic Noise Reduction Functions and Compensation of exterior interferences in all analysis modules