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ORNET

IoT Based SR-8800 field spectroradiometer

The SR-8800 uses its IoT operating system to control the pistol grip functionality so that any user can get consistent scans. The IoT uses a WiFi network accessed by an Android device, iPhone or tablet for controlling the system and downloading data stored on the instrument.

The SR-8800 spectroradiometer operates in the 350-2500nm band with high resolution and sensitivity. Of special note is the ability to control your instrument from an IOS or Android smartphone or tablet. In combination with the new Sensaprobe™ grip, researchers can access and store a picture of the sample and its GPS location, in addition to the scan data. An ultrasonic sensor together with live camera view of the sample ensure that your measurements are precise and repeatable.

Specification

Operation ModePush-broom
Spectral Range350 – 2500 nm
Spectral Resolution—FWHM (Full Width at Half Maximum)2.8 nm @ 700 nm
8 nm @ 1500 nm
6 nm @ 2100 nm
Si Detector512 element Si photodiode array ( 350 – 1000 nm )
InGaAs Detectors (cooled)256 element extended wavelength photodiode array (1000–1900nm)
256 element extended wavelength photodiode array (1900-2500nm)
Fiber Mount Options1, 2, 3, 4, 5, 8 and 10° FOV Lenses, irradiance diffuser
Noise Equivalence Radiance (1.2m fiber)0.8 x 10 - 9 W/ cm2 / nm / sr @ 400 nm
1.2 x 10 - 9 W/ cm2 / nm / sr @ 1500 nm
1.8 x 10 - 9 W/ cm2 / nm / sr @ 2100 nm
Max Radiance @ 700nm (1.2m fiber)2.0 x 10 - 4 W/ cm2 / nm / sr
Minimum Scan Speed100 milliseconds
Wavelength Reproducibility0.1 nm
Wavelength Accuracy±0.5 bandwidth
Communications InterfaceUSB or WiFi– communicate with iPhone or Android
Size31.5 x 22.9 x 38.7 cm
WeightLess than 5kg
BatteriesLithium ion; 7.4V—rechargeable
Angle measurement range & accuracy0.15 degree accuracy on both axis of Tilt sensor
Distance measurement range & accuracyResolution of 1 inch or 2 cm on the range finder
Solar angle accuracyWithin 1°
GPS positioning accuracy±3 meters accuracy
Camera parametersVGA with resolution of 640x480 pixels
Bluetooth /WiFi working distancesClass 1, 100m range

Spectral Evolution’s Exclusive Sensa probe Grip Makes Measurements Consistent

Applications Of SR-8800 Spectroradiometer

  • Environmental research
  • Ground truthing – confirming, disputing, or interpreting hyperspectral or multi-spectral data
  • Agricultural analysis
  • Ecosystem change
  • Forestry research, including canopy studies
  • Glacial change and climate studies
  • Atmospheric research
  • Vicarious satellite sensor validation
  • Water body studies
  • Plant species identification
  • Soil degradation, mapping, and monitoring