Water quality detector for mariculture

Abstract

The invention discloses a water quality detector for mariculture. The water quality detector comprises a measuring probe, a wireless transmitting device and a receiving device, wherein the measuring probe is hung in seawater below a culture facility; the wireless transmitting device is fixed on a culture facility on the sea; the receiving device is arranged on a coast; four sensors are arranged in the measuring probe; ultraviolet light emitted by a semiconductor laser of a temperature sensor is transmitted to temperature-sensitive raster via an optical fiber and generates reflection in the raster; the temperature of seawater is measured according to the changes of the resonance peaks and resonance valleys of reflected light along with seawater temperature; a salinity sensor is an electrode type conductivity sensor; an acidity sensor employs a pH combined electrode; a dissolved oxygen sensor employs a polarographic coated oxygen electrode; a measuring signal is transmitted to signal conversion circuit in a sealed compartment via a signal line; the signal conversion circuit of the sensors is placed in the sealed compartment of the measuring probe; and a signal line connected with the wireless transmitting device is lead out from the sealed compartment. The water quality detector is convenient to use and has wide application prospects in mariculture.

Description

technical field [0001] The invention relates to an instrument for detecting seawater quality, in particular to an instrument for detecting on-site seawater temperature, salinity, acidity and dissolved oxygen in the seawater aquaculture process. Background technique [0002] In mariculture, seawater quality testing is very important, including the measurement of seawater temperature, salinity, acidity and dissolved oxygen. The water quality testing method of the existing seawater farms mainly follows the original single pen meter, manually measures for many times, and takes the average value to understand the basic seawater quality status. The measured value of this method is inaccurate and labor intensive. And the existing detection instrument that adopts the direct drop-in type multi-probe connects the sensor dropped into the seawater with the receiving device on the shore with a cable, which is limited by the long distance, and it is very inconvenient to set up and use th...

AI Technical Summary

Problems solved by technology

The measured value of this method is inaccurate and labor intensive

However, the existing multi-probe detectors that use direct insertion connect the sensors that are put into seawater with the receiving devices on the shore with cables. Due to the limitation of long distances, it is very inconvenient to set up and use the instrument, and is not welcomed by farmers.

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