Movie Mode (TR and IR)
Movie Mode (TR and IR)
Acquires quasi-steady-state thermal images for pulses longer than 5 ms. Used to view longer-timescale IR and TR waveforms. In TR mode, SNR may be reduced relative to Transient/FA modes — localize thermal events first, then use Movie Mode for further study.
Key features:
- Camera Image Display — Zoom, Grab, and ROI selector tools (SHIFT+CLICK to zoom out).
- Time Domain & Frequency Domain Graphs — average of ROI pixels over time or frequency; sweep with the frame number control.
- Device Controls — the EZ500A SanjCONTROLLER drives two outputs: Voltage Out (Output 1, primary, modulated in sync with the camera) and Output 2 (constant source for powering other circuit parts). Changes apply on "Update Values." Pulse timing duration is adjustable.
- Waveforms Graph — shows output voltage/current when "Controller Box" is the selected output source.
- Thermal Image Display — shown in relative units (1e-4 dR/R) or temperature (via CTR). Draw an ROI in Thermal Imaging mode to see the averaged temperature value.
- Region Temperature:
- ΔT (°C) — up to 5 different ROIs.
- CTR or E — thermoreflectance coefficient (material-dependent) or, for IR sessions, Emissivity (E).
- Scale Bars — active when Autoscale is off; palette selector for visualization; binning modes 2X and 4X improve SNR.
- ROI Tools — rectangle, annulus, freehand, point.
- Save Data — choose file name/path; comment text box appears when the file is reopened in the Thermal Image Analyzer.
Setting the time window: Options → Software tab → "Movie Mode Length" dropdown; sets the averaging time window to 3–30 seconds.
Example procedure — obtaining a Movie Mode image:
- Connect the DUT to Voltage Out (AUX Output optional).
- Select biasing conditions via the "Device Control" panel and click "Update Values."
- While the image averages, use the ROI tool, scale bars, and Thermal Image Display tool to optimize the image.
- Once the desired thermal image is achieved, save a data file for further analysis and output.