In-situ Marine Optics
  • IMG 2889

DALEC

 

DALEC

The Dynamic Above-water Radiance (L) and Irradiance (E) Collector (DALEC) is an autonomous sea-going hyperspectral radiometer designed to continuously measure above-water ocean reflectance during ship transit.

 

 

 

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Features

  • Continuous and fully automated data collection during transit
  • Integrated GPS, pitch, roll and heading
  • Motorised azimuth control
  • Automatic integration time
  • Real-time dark current compensation
  • Rapid, independent measurements up to 5Hz
  • NTC temperature sensor on each detector array
  • Supported by HyperCP version 1.2.13

Specifications

Detectors 3 x Zeiss MMS1 UV-VIS NIR enh. spectrometers
Wavelength range 310 – 1150 nm. (Calibrated range: 340 – 970 nm)
Spectral resolution 10 nm (3.3 nm pixel spacing)
Sea viewing radiance channel (Lu) 40° from nadir view angle
5° degree Field-of-View
Sky viewing radiance channel (Lsky) 40° from zenith view angle
5° degree Field-of-View
Downwelling Irradiance Channel (Ed) Fused Silica Diffuser
Cosine error: <3% (0 – 60°)
Calibration NIST traceable radiometric calibration
 
Acquisition 16 bit ADC
Sampling Rate Independent sampling up to 5 Hz per channel (Lu, Lsky, Ed)
Integration time Automatic or manual from 1 – 6600 ms
Communication Ethernet / Internal data logging (128GB storage)
Positional sensors GPS, pitch, roll and satellite compass heading
Motor-controlled sun-relative azimuth angle User specified in software
Input Voltage (deck unit) 24 VDC
Deck unit battery rechargeable Lithium Ion
LED status indicators Yes
Connectors Micro WET-CON MCBH6M (sensor), MCBH6F and MCBH6M (deck unit)
 
Length 304 mm
Diameter 145 mm
Weight 3 kg
Materials Acetal, SS316 and Fused silica
Passive gymbal Anodized aluminum with ceramic bearings
Water resistant Yes
Operating Temperature 0 to +50 °C

Software

 

DALECview

DALECview is GUI program that allows users to easily configure and display real-time data via serial communication.

Contact Sales to download the latest version.

For Microsoft Windows platforms.