Measuring plant fluorescence
Intended for ground and airborne measurement of solar-stimulated
fluorescence from plants, Specim's latest offering, the robust and very-high-spectral
AisaIBIS, is suitable for use in research institutions for
tackling problems relating to forestry, farming, climate and carbon
cycle.
The most valuable feature of AisaIBIS is its ability to measure the secret light of plants, the weak sun induced fluorescence signal. During the photosynthesis, plants convert light energy from the sun into chemical energy that fuels organism growth. During that process part of the absorbed light energy is emitted back as a faint glow, the fluorescence. Measured fluorescence can be used as an indicator of photosynthetic activity of the plant thus telling its health and vitality.
Directly measuring how well plants are growing by using a technique
called the Fraunhofer Line Depth Method, the weak fluorescence signal
is detected and quantified at the bottom of the two oxygen absorbtion
lines in the specific spectral region of 670 - 780 nm. By applying SPECIM's
high light throughput (F/1.7) imaging spectrometer and sCMOS camera
technology, low noise, high dynamic range and signal-to-noise ratio are achieved with excellent spectral sampling (0.11 nm) and superb image
quality even at the high image rate required in flight conditions.
Specifications
|
aisaIBIS |
|
Sensor |
sCMOS, snapshot mode |
Spectral range |
670 - 780 nm |
Spectral sampling |
0.11 / 0.22 nm |
Spectral bands |
1000 |
Detector cooling |
Peltier |
Optics temperature stabilisation |
Yes |
Frame rate |
Up to 100 Hz |
Spatial pixels |
384 / 768 |
Output |
USB / RS232 |
Signal-to-noise ratio |
680:1 (at max. signal level) |
Input voltage |
18 - 36 VDC |
Power consumption |
Nominal 135 W, Max 200W |
Storage temperature |
- 20 ... +50 ºC |
Operating temperature |
+ 5 ... +40 ºC, non-condensing |
Size (L x W x H) |
Sensor: 588 x 227 x 160 mm. Power supply and control
unit: 300 x 190 x 130 mm |
|
Weight |
Sensor: 14.2 kg. Power supply and control unit:
approx 5 kg |
|
Shutter |
Electro-mechanical shutter for dark image acquisition
|
|
aisaIBIS
data sheet
|