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Dissolved oxygen intelligent transducer

An intelligent transmitter and dissolved oxygen technology, applied in the fields of instruments, material electrochemical variables, analytical materials, etc., can solve the problems of low integration and intelligence, high cost, and single function.

Active Publication Date: 2009-09-16
CHINA AGRI UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the dissolved oxygen transmitters in the prior art are without compensation or can only achieve temperature compensation. They use analog output and generally have high cost, single function, low integration and intelligence. question
That is to say, in the prior art, there is no intelligent dissolved oxygen transmitter with temperature compensation and salinity compensation, which can realize online detection of water body

Method used

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Embodiment Construction

[0020] figure 1 It is a schematic diagram of the working principle of the dissolved oxygen intelligent transmitter of the embodiment of the present invention, as figure 1 As shown, the dissolved oxygen intelligent transmitter includes a dissolved oxygen probe 1, a temperature conductivity probe 2, an excitation signal source 3 connected to the dissolved oxygen probe 1 and the temperature conductivity probe 2, respectively connected to the dissolved oxygen probe 1 and the temperature conductivity probe A signal conditioning module 4 connected to the probe 2, a transmitter electronic data sheet (Transducer Electronic Data Sheets, referred to as: TEDS) memory 5, a microcontroller 6 connected to the signal conditioning module 4 and the TEDS memory 5, and a microcontroller 6 connected to the A bus interface module 7 and a power supply module 8 . The dissolved oxygen probe 1 is used to collect the dissolved oxygen signal of the water body; the temperature conductivity probe 2 is us...

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Abstract

The invention discloses a dissolved oxygen intelligent transducer, comprising: a dissolved oxygen probe, a temperature electrical conductivity probe, an inciting signal source, a signal conditioning module, a transducer electronic data sheet (TEDS) memory, a microcontroller, a power module and a bus interface module. The dissolved oxygen intelligent transducer integrates the dissolved oxygen probe, the temperature electrical conductivity probe, the TEDS memory, the microcontroller and the bus interface module. The dissolved oxygen probe is used for collecting the dissolved oxygen signal of a water effluent body and the temperature electrical conductivity probe is used for collecting the temperature signal and the electrical conductivity signal, the microcontroller is used for calculating the dissolved oxygen content, the electrical conductivity, the temperature and the practical salinity according to the TEDS parameter memorized in the TEDS memory and the processed dissolved oxygen signal, the temperature signal and the electrical conductivity signal, and output the same by the bus interface module, thus realizing the temperature compensation and salinity compensation for the dissolved oxygen measurement and the online detection of the water body dissolved oxygen.

Description

technical field [0001] The invention relates to the field of water quality detection, in particular to an intelligent dissolved oxygen transmitter capable of realizing temperature compensation and salinity compensation and capable of online detection of water bodies. Background technique [0002] Dissolved oxygen refers to molecular oxygen dissolved in water or solution, which is an indispensable condition for the survival of aquatic animals and aquatic plants. Dissolved oxygen is significantly affected by changes in water temperature and salinity, and temperature compensation and salinity compensation must be considered during measurement. The dissolved oxygen in natural water is close to the saturation value. When the dissolved oxygen concentration is less than 3mg / l, the survival of fish will be affected. The reduction of dissolved oxygen in rivers, rivers and lakes is the main reason for the deterioration of water quality. The concentration of dissolved oxygen reflects ...

Claims

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Application Information

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IPC IPC(8): G01N35/00G01N27/48
Inventor 李道亮丁启胜马道坤王剑秦赵霖林
Owner CHINA AGRI UNIV
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