An automatic solution color reaction sensor

Abstract

The invention discloses an automatic solution chromogenic reaction sensor. The automatic solution chromogenic reaction sensor comprises a measurement control unit, a measurement groove provided with amounting hole and through holes, a visible-light color probe fixedly arranged in the mounting hole and extending into the measurement groove, and an air suction pump, an air discharge pump, a to-be-measured solution feeding pump and a chromogenic reagent feeding pump which are respectively connected with the through holes in a one-way manner, wherein the bottom part of the measurement groove is provided with a water and air discharge outlet with a one-way valve; and the measurement control unit is used for separately controlling the air suction pump and the air discharge pump to suck or discharge air, controlling the to-be-measured solution feeding pump and the chromogenic reagent feeding pump to respectively pump a to-be-measured solution and a chromogenic reagent into the measurement groove, controlling the visible-light color probe to read the numerical values, in all RGB channels, of a solution in the measurement groove, comparing the numerical values with prestored colorimetric sample data, and selecting and calculating color space data to obtain the ion concentration data of the to-be-measured solution. The automatic solution chromogenic reaction sensor provided by the invention can realize unattended on-line fully-automatic measurement, and has the characteristics of high degree of automation, low labor cost, etc.

Description

technical field [0001] The invention relates to an automatic solution color reaction sensor, which belongs to the technical field of sensors. Background technique [0002] With the development of Internet of Things technology, various types of online sensors are used in various industries such as industrial production, environmental monitoring, and agricultural breeding. Among them, the online ion concentration sensor is of great significance for the measurement and control of total nitrogen, total phosphorus, pH value, dissolved oxygen and other indicators in soil and water because it can monitor the concentration of various ions in the solution in real time. [0003] However, the ion concentration probes of the existing on-line ion concentration sensors on the market all adopt the sensitive membrane transducer structure, which is expensive and has a short service life. Greater resistance. [0004] In actual production, such as industrial pond breeding, field environmenta...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide an automatic solution color reaction sensor, and solve the problem that the existing online ion concentration sensor is expensive, has a short service life, and needs frequent manual operations during use. Maintenance and calibration, resulting in the inability to realize unattended fully automatic titration measurement

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