M e a s u r e m e n t P r i n c i p l e S p e c i a l A p p l i c at i o n s C a m e ra S e l e c t i o n C r it e ri a S t a n d a r d A p p l i c a t i o n s Infrared camera Measured radiation Φ M Output of Radiation Φ‘ o Emitted by the measurement path Φ P Input of radiation Φ o Path τ P , θ P Reflected radiation Φ P Emitted radiation Φ ε Transmitted radiation Φ τ Object θ o , ε, ρ, τ Ambient θ u Background radiation Φ BG Object Background θ BG Infrared Thermography at a Glance MWIR LWIR FIR X-Ray Gamma UV Infrared Microwaves Radiowaves SWIR 1 nm 10 nm 1 μm 10 μm 100 μm 10 mm 100 mm 10 m 100 m 0.1 nm 0.01 nm 100 nm 1 mm 1 m 1 km 100 nm Wavelength 1 μm 10 μm 100 μm 1 mm Visible Thermal infrared Terahertz Electronics Automotive … and yours? InfraTec GmbH Infrarotsensorik und Messtechnik Gostritzer Straße 61 – 63 01217 Dresden / GERMANY Phone +49 351 871-8630 Fax +49 351 871-8627 E-mail [email protected] Internet www.InfraTec.eu Spectrum of Electromagnetic Radiation Thermographic Measurement Situation Defect IR-radiation IR-camera Internal Excitation Electrical Induction Ultrasound Optical External Excitation Thermal Optical Triggering Pulse phase Lock-In Test object Camera control Image data processing Supply Emission ε + Reflection ρ + Transmission τ = 1 Planck's Radiation Law and Wien's Displacement Law Bulb, on glass Measurement on a resistor Bulb, through glass Cooled photon detector camera Uncooled microbolometer detector camera Open Grey filters Spectral filters Aperture Use of spectral filters in flexible filter wheels inside the thermographic camera Precise radiometric calibration For best-certified measurement accuracy from (-40 … 3,000) °C, ± 1 °C or ± 1 % Optics Microscopic lenses, wide-angle lenses, telephoto lenses, zoom lenses Interfacing Industrial standards like GigE / 10 GigE, fast and ultra-precise triggering, analogue / digital data input Software Convenient camera control, real-time data acquisition and analysis Thermal resolution Thermal resolution as low as 0.015 K Spatial resolution Detector formats with up to (1,920 × 1,536) IR pixels Time resolution Analysis of high-speed dynamic temperature changes and processes 25,000 Hz Spectral Thermography – Provides Material-specific Precision Measurements Active Thermography – Find Anomalies with Thermal Resolution in Millikelvin Range Tool construction Internal trigger interface Camera control and output of control signals for external devices Represented by: Design and specification subject to change without prior notice. © InfraTec 2019 (All the stated product names and trademarks remain in property of their respective owners.) Picture credits: © iStock.com / voraorn, LianeM Aerospace Airborne Watch some videos illustrating what thermography is used for: Stress analytics Natural sciences With friendly support of: Passive thermography Visual image Lock-in Thermography