NanoSpec R
This is an ultra-small reflectometer (and colorimeter) which is associated with wireless data collection.

  NanoSpec R is the first battery powered wireless reflectance    
spectrophotometer and color matching system in the world.


   Optical Specifications     Description
   Wavelength range   360-885nm
   Wavelength Reporting Interval   < 2nm
   Optical Resolution (FWHM)    5nm
   Wavelength Accuracy   < ± 0.1 nm (at 650 nm)
   Wavelength Reproducibility   < ±0.02 nm for 10 consecutive scans (NIST 2034)
   Photometric Accuracy    ±8.0%
   Integration Time
  < 54 µs - 2000 ms
   light source   Incandescent with LED support
   Typical Scan Time   0.1 s
   Detector   Array Multichannel
    Physical Specifications     Description
   Communication    Micro USB 2 (Full Speed) & Wireless interface 
   A/D Conversion   14 bit
   Software   Windows XP, 7,8
   Wireless Communication Range   Up to 10 meter range
  Battery Life   2 hours (Light Source on)
  Operating temperature   5 - 50 °C
  Dimensions   56mm (L)*85mm(W)*39mm(H)
  Charging Type
  Wireless Charger & USB Charger


The recent advances in integrated electronics and smaller optical components have lead to another revolution in color technology - the portable instrument. The ariety in models and geometries are as diverse as in the bench-top models. Besides being completely portable, their attraction is that they can meet most quality control requirements without the use of an accompanying computer system. Their micro processors are capable of calculating color differences, pass/fail, shade sorting, whiteness, grades of fastness, and many other indices of color and appearance.
While these advantages have provided many users with the opportunity to now use color instrumentation, one must be aware of some limitations. Portable colorimeters, as with all colorimeters, are not capable of detecting metamerism. Many portables do not meet the same performance specifications as bench-top models in areas such as spectral resolution, bandwidth, and large-to-small viewing areas. Due to their size, many other features of bench-tops are not available, such as transmission measurement, and adjustable UV filters.
Another key difference is sample measurement and presentation, a factor worth considering in textiles. Every bench-top instrument uses a sample holder such as a spring loaded plunger or air cylinder which applies a consistent amount of pressure to the back of the sample.
This reduces the variability in measurement and thus lowers the number of reads required to achieve acceptable repeatability. Since most portables are hand-held while measuring, the variability in pressure leads to higher variability in measurement. This is especially true when measuring fabrics or materials which have texture, pile, or are multi-layered allowing some pillowing of the fabric when measuring.

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Teaching Lab
Chemistry Life Science

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