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REFRACTIVE INDEX MEASUREMENT SYSTEM

REFRACTIVE INDEX MEASUREMENT SYSTEM
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The RI™ system has been designed as a complete solution to forensic analysis of small glass splinters by the immersion method. The system was developed in tight cooperation with forensic specialists on glass analysis to provide precision, reproducibility, and high comfort of work with both hardware and software. RI™ can be used as a single-purpose system or in combination with other microscopic methods such as spectroscopy.

HIGHLIGHTS

  • Sufficient objective working distance for easy replacement of slides
  • Reproducibility of repeated measurements - standard RI deviation under 0.00002
  • Up to 20 resizable measurement probes
  • Video recording of the measurement progress
  • Remote passive connection to database for networked systems
  • Software integrating hardware and measurement control with a complete set of image processing, analysis and measurement tools in a dedicated application layout
  • User-friendly template-based reporting

SYSTEM MODIFICATIONS

  • Possible integration with spectroscopy -miniature fibre optics spectrometer
  • Possible integration with other microscopic techniques (EPI illumination working in dark field and bright field, fluorescence,polarization, DIC, etc.)

OPTIONS

  • Microscope tilting head for easier work
  • Camera relay lenses (1x, 0.7x, 0.5x) for adaptation for various splinter sizes
  • Environmental conditions monitoring via wireless meteo station
  • Nikon Stereomicroscope with side light for sample preparation
  • Set of calibration glasses, interference filters, and silicone oil
  • Additional microscope parts
  • Various PC peripherals (printer, scanner, etc.)
  • Manual filter changer with interference filters
specification: 

SYSTEM STABILITY

Precision of measurements is ensured by calibration via glass standards. Long-term stability can be checked by periodic measurement of a glass standard (e.g. K5). The stability is than visualized in a stability graph plot.

SYSTEM PARTS

  • High quality Nikon microscope with phase contrast optics
  • Nikon long working distance phase contrast objective 10x
  • Mettler hot stage with LIM RI2 controller
  • 64-bit high performance PC with Windows 7 / 8
  • 27’’ / 30” LCD monitor
  • 2 MPix monochrome camera connected to microscope (C-Mount adapter)
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