Dissolved oxygen analyzer capable of rapidly measuring

Abstract

The invention relates to the technical field of dissolved oxygen analyzers, and discloses a fast measurement dissolved oxygen analyzer, which comprises a dissolved oxygen sensor, a temperature sensor, an analog signal adjusting circuit, an A / D conversion module, an embedded CPU, a data storage unit, a logic control module and an isolation module power supply, the output end of the dissolved oxygen sensor and the output end of the temperature sensor are in signal connection with the analog signal adjusting circuit, the output end of the analog signal adjusting circuit is in signal connection with the input end of the A / D conversion module, and the output end of the A / D conversion module is in signal connection with the embedded CPU. The output end of the embedded CPU is respectively connected with a data storage unit and a logic control module, the logic control module is in signal connection with the analog signal adjusting circuit, and the discharge end of the isolation module power supply is respectively connected with the analog signal adjusting circuit, the A / D conversion module and the embedded CPU. The dissolved oxygen is measured by adopting a fluorescence method, maintenance is avoided, measurement is stable, and a measurement result is more accurate compared with a traditional direction.

Description

Technical field: [0001] The invention relates to the technical field of dissolved oxygen analyzers, in particular to a rapidly measuring dissolved oxygen analyzer. Background technique: [0002] As an important water quality index, dissolved oxygen plays an important role in both water quality evaluation and scientific research. How to determine the concentration of dissolved oxygen accurately, continuously and rapidly has always been an important topic in analytical chemistry. Therefore, the method of using chemical theory and means to detect dissolved oxygen first appeared in the field of chemistry, and such methods are called chemical methods. With the continuous development of other disciplines and technologies, the instrumental method derived from the combination of various disciplines has gradually become a hot spot in the field of dissolved oxygen concentration detection in recent years due to its fast and simple characteristics. [0003] At present, the traditional...

AI Technical Summary

Problems solved by technology

As a consumable that is easily lost, the price of the dissolved oxygen electrode is relatively high, and it needs to be calibrated and maintained frequently to ensure the accuracy of the instrument and prolong the service life of the electrode. Therefore, it is urgent to provide a fast-measurement dissolved oxygen analyzer.

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