GlowTracka Bioluminescence Sensor: measures bioluminescence for toxic blooms & biomass studies
GlowTracka, originally developed by Plymouth Marine Laboratory, UK, is a robust, sensitive detector primarily used for the assessment of bioluminescent algae within the marine environment. It is ideally suited to biomass studies and toxic algae bloom detection.
GlowTracka’s precision flow meter stimulates bioluminescent organisms – principally dinoflagellates. The instrument then measures the light flashes as the organisms pass the detector. The complete range of flashes that can occur – from single events to mesoscale – is measured. GlowTracka is designed to be moored, profiled (with pumped systems) or deployed in towed vehicles.
- Biomass studies in the marine environment
- Bioluminescence species abundance assessments
- Toxic algae bloom detection
- Autonomous & towed vehicle deployments
- Flow-through systems available
Hows does it work?
GlowTracka’s precision flow meter stimulates bioluminescent organisms – principally dinoflagellates. The instrument then measures the light flashes as the organisms pass the detector. The complete range of flashes that can occur – from single events to mesoscale – is measured.
The measurements indicate changes in primary productivity in an area, giving the instrument a useful role in pollution monitoring and biomass studies. Since the abundance of individual bioluminescent species can be studied, it is often an indication of toxic algal blooms.
GlowTracka is designed to be moored, profiled (with pumped systems) or deployed in autonomous towed vehicles. The GlowTracka includes a marinised turbine flowmeter which is primarily used to stimulate the bioluminescent matter, but can also be used to monitor flow to obtain abundance data.
|Type||Flow-through (28mm internal pipe diameter)|
|Optical viewing||Transerve to flow|
|Detector||Photodiode (100 sq mm)|
|Irradiance detectivity||10 picowatt at 60mm over z.f. - 50Hz (-3db)|
External supply version:
|Grounding||All circuitry DC isolated from chassis|
|Signal outputs||All 1 volt full-scale, 0.5 ohm source resistance, > 10 kilohm load, (z.f. -50Hz)|
Zero-crossing required, from+/-5mV to+/-100V;500Hz full-scale, other scalings as factory option
|Depth capacity||1000 meters standard|
|Weights (approx)||2.4kg in air|
|Connector||Impulse LPMIL - 4FS|
|Flow speed range||68 to 680 LPM|
|Internal diameter||38 mm|
|Size||60 x 12 x 120mm|
|Output||Sine wave output proportional to flow rate. 30mV peak/peak at 10% flow range.1000Hz at fall flow|
In view of our continual improvement, the designs and specifications of our products may vary from those described.