A Simple Red Tide Warning Device

Aiming at the growing red tide, we designed a simply red tide predication device which is intended to measure the content of red tide alga in seawater. We make use of Chlorophyll A's spectrum characteristic, which is in the red tide alga. Then combined with narrow spectrum of LED, high photon-electron efficiency and high response rate of PIN diode, different idea, we designed a circuit to amplify, acquire, process the optoelectronic signal and put the warning information on PC. We can know the accurate content of red tide alga in seawater in real time by monitoring the content of Chlorophyll A. This device has the advantages of high sensitivity, low cost and easy to operate. etc.