Posted in | Reflectance Standards

Advanced VideoMVP™ Single Reflection ATR Microsampler

The VideoMVP seamlessly integrates the functionality of a diamond ATR accessory with advanced video imaging and optional force sensing capabilities.

With its easy-to-use horizontal sampling feature—an active sampling area on its monolithic diamond that measures less than 500 µm in diameter—the VideoMVP is ideal for infrared spectroscopy measurements of extremely abrasive materials such as beads, fibers, hard samples, powders, and even corrosive materials.

The video imaging device uses the ATR crystal to provide a real-time magnified view of the sample. Users can see this image on the integrated display or save it digitally for future reference.

Solid samples are packed together against the ATR crystal with the integrated pressure applicator.

A slip clutch is installed on the pressure applicator to prevent over-pressurization. If necessary, a force sensor with a digital read-out is included to measure the force applied to the sample accurately and to consistently provide less force than what the built-in slip clutch can supply.

Key Features

The primary characteristics of the VideoMVP single reflection ATR microsampler include:

  • All reflective optics other than the ATR crystal
  • Built-in pressure applicator with slip-clutch for reproducible calibrated pressure application
  • Designed for optimal contact between the ATR element and solid samples
  • Horizontal sampling for convenience
  • Incident angle: 45°
  • Less sample preparation required
  • Monolithic hemispherical diamond mechanically retained in a chemically resistant holder
  • PermaPurge™ for quick purging of the system
  • RoHS compliant
  • Small sampling area: 500µm in diameter with the diamond ATR crystal
  • Video imaging unit for viewing via the diamond ATR comprises 120X magnification of the sample; built-in LCD display on a rotating mount for easy viewing; and USB-video adapter and software for storing images

Optional Features

  • Flow-through liquid cell for static and flow applications
  • Force sensor with digital read-out for accurate force measurements
  • Heatable sampling plates for operation up to 200 °C with diamond, Si or ZnSe ATR crystals, 100 °C with Ge
  • Powder adapter for retaining powdered samples
  • Readily exchangeable Ge, ZnSe, Si and diamond ATR sampling plates

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