Profiling Natural Fluorescence Radiometers PNF Biospherical Instruments

Mã sản phẩm: PNF |
Thương hiệu: Biospherical Instruments

Giá bán: Liên hệ
Profiling Natural Fluorescence Radiometers
Model: PNF
Hãng: Biospherical Instruments

Yêu Cầu Giá Tốt

Thông tin sản phẩm
- Our natural fluorometers are integrated optical systems specifically designed to measure natural fluorescence — the fluorescence from the phytoplankton crop stimulated by available sunlight. Starting with research conducted at Biospherical under a NASA SBIR Contract and followed on with considerable additional studies has shown that this measurement is related to photosynthetic rates and chlorophyll concentrations. Unlike strobe fluorometers, a natural fluorometer measures fluorescence emitted under the ambient light conditions that are driving photosynthesis in situ.

- Measurement: Vertical profiles and logging of scalar irradiance (EoPAR) at depth and at the surface, upwelled (nadir) red radiance (LuChl), water temperature, and pressure/depth. Calculated values include photosynthetic rates, volume fluorescence, and chlorophyll concentration.
- Spectral Response:  Scalar irradiance EoPAR with 400–700 nm spectral response. Upwelling radiance LuChl covering the chlorophyll emission spectrum, spectral response centered at 683 nm. 
- Small, rugged, lightweight, battery-powered. 
- Depth: 200 m full scale, accuracy ±1% full scale (50 m full scale available on request) 
- Temperature: –5°C to 35°C, accuracy ±0.1°C, resolution ±0.03°C 
- Input Power: From battery-powered deckbox (12 VDC, 6 AH rechargeable battery) 
- Output Signal: RS-232, 9600 baud serial data to computer (required) 
- System includes: Radiometer with lowering frame, surface reference sensor, deckbox, 100 m underwater cable, 25 m surface reference cable, and data acquisition software.


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