CALIBRATION-FREE PORTABLE OPTICAL DEVICE FOR THE CONTINUOUS RECORDING OF SATURATION AND DISSOLVED OXYGEN IN A BODY OF WATER

摘要

The invention relates to a calibration-free portable optical device for the on-line remote recording and monitoring of saturation and concentration of dissolved oxygen in a body of water, based on the electronic processing of analog data obtained from an attenuation in the fluorescence recorded in darkness by different types of fluorescent pigments that react with fluorescence decay in the presence of DO when the pigment has been activated by a pulse of blue or red light.