BSI’s BIC and BIR multichannel radiometers are scaled-down versions of our widely used profiling radiometers.
The BIC features a cosine irradiance collector and the BIR has radiance optics. Both radiometers measure in four wavebands that can be selected from over 20 spectral choices, ranging from 305 nm in the UV to 875 nm in the NIR, as well as a broadband PAR option.
In addition to measuring radiance or irradiance, the radiometers can optionally be equipped with sensors for water temperature and pressure/depth. Compact and lightweight, the instruments feature a dynamic-range greater than five decades and are suitable for a wide variety of aquatic applications, including general-purpose irradiance profiling, spectral transparency measurements, or deployment in shallow ponds and streambeds.
The sensors are powered by a PC’s USB port and can be integrated into buoys deployed in lakes and oceans using external data loggers. When two BICs or BIRs need to be operated at the same time with one PC, a USB digital signal manifold (DSM) is required. The DSM can be configured to support a BIC as a surface irradiance sensor on one cable and a BIC and BIR on the other cable for lowering into the aquatic environment. By configuring the in-water BIC with optional temperature and depth sensors, vertical profiles of the apparent optical properties can be obtained. BIC systems have been successfully backpacked into remote mountain locations for use in alpine lakes across the country.
Features
Choose from over 20 different 10-nm wide spectral channels from 305–875 nm
UV channels available: 305, 313, 320, 340, 380, and 395 nm
Radiance or irradiance collection optics
PAR (400–700 nm) channel available
Pressure (depth) and temperature options
Direct connection to PC USB port for power and data
Suitable for both aquatic profiling and remote field measurements
RS232 output and low power requirement make the sensors compatible with data loggers
Windows-based data-acquisition software
