IntroductionThe PhaseCam ESPI by 4D Technology is a dynamic interferometry system designed for measuring diffuse objects using Electronic Speckle Pattern Interferometry (ESPI). It features a compact design with a single camera pixelated sensor, eliminating alignment and calibration issues common in multi-camera setups.
Key Features- Simultaneous acquisition of four phase-shifted interferograms.
- High spatial sampling with 1K x 1K or optional 2K x 2K data arrays.
- Fast phase acquisition at 30 millionths of a second, enabling operations up to 10,000 times faster than conventional systems.
- Vibration insensitive, allowing for accurate optical testing on production floors without costly isolation hardware.
- Reduced sensitivity to air turbulence, improving data accuracy and repeatability.
Software CapabilitiesThe 4SightTM software provides an intuitive interface for setup and data analysis, offering features such as:
- Real-time data processing and reference subtraction.
- Advanced analysis tools including Zernike and Seidel analyses.
- Flexible data export and graphical display options.
Specifications- Optical Configuration: Selectable Mono-static or Bi-Static illumination.
- Laser: Pulsed solid-state laser at 532nm, with a minimum pulse energy of 275mJ.
- Detector: Single camera with a pixelated sensor, supporting up to 2K x 2K data arrays.
- Acquisition Rate: Minimum exposure time of 30 µsec, with a display rate of over 25 frames per second.
- Computer System: Minimum configuration includes a Pentium IV processor, 3 GHz, 1 GB RAM, and Windows XP OS.
Performance and Options- RMS Repeatability: Less than 0.001 wave for specular samples and less than 5 nm for differential diffuse samples.
- Configuration Options: Includes a 4 MegaPixel camera and various laser power/wavelength options.
Additional InformationThe system includes on-site installation and operator training, with free software upgrades during the warranty period. Specifications are subject to change without notice.