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An error reduction method for an automatic calibration device of an online water quality analyzer

An automatic calibration and analyzer technology, applied in measurement devices, analysis materials, material analysis by optical means, etc., can solve the problem of long time period of online analyzers, and achieve the effect of reducing inherent errors and improving configuration accuracy.

Active Publication Date: 2019-02-19
JIANGSU INST OF METROLOGY
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Problems solved by technology

[0002] In the environmental water body monitoring system, the online water quality analyzer is generally used to detect the water body parameters. Whether the detection accuracy of the online water quality analyzer meets the requirements of the national verification regulations, the measurement performance of the online water quality analyzer is generally calibrated manually, and the manual detection The time period of the online analyzer is long (generally 36 hours)

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  • An error reduction method for an automatic calibration device of an online water quality analyzer
  • An error reduction method for an automatic calibration device of an online water quality analyzer
  • An error reduction method for an automatic calibration device of an online water quality analyzer

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[0020] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention All modifications of the valence form fall within the scope defined by the appended claims of the present application.

[0021] A method for reducing the error of an automatic calibration device for an online water quality analyzer. The liquid is prepared by the calibration device, and the absorbance of the potassium dichromate solution is tested. The error of the solution preparation is less than ± 2%, and there is a systematic deviation in the entire system. When the upper computer generates the first control signal and the second control signal, the system correction factor K is intr...

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Abstract

The invention disc loses an error reduction method of an automatic calibration device of an online water quality analyzer. A potassium bichromate solution mother solution with the concentration of c0is prepared through the automatic calibration device of the online water quality analyzer, the absorbance A0 of the solution is measured under the condition of certain wavelength, solutions are prepared in different distribution ratios by use of the calibration device, the theoretical absorbance As1-Asi of the solutions is calculated by use of the distribution ratios, the actual absorbance AX1-AXiis measured under the same condition, correction factors K1-Ki in different distribution ratios are obtained according to the theoretical absorbance As1-Asi and the actual absorbance AX1-AXi, and thefunction of reducing system errors is realized through the correction factors during solution preparation.

Description

technical field [0001] The invention relates to a method for reducing errors, in particular to a method for reducing errors in a calibration device for a water quality analyzer. Background technique [0002] In the environmental water body monitoring system, the online water quality analyzer is generally used to detect the water body parameters. Whether the detection accuracy of the online water quality analyzer meets the requirements of the national verification regulations, the measurement performance of the online water quality analyzer is generally calibrated manually, and the manual detection The time period of the online analyzer is long (typically 36 hours). However, the automatic calibration device of the water quality online analyzer itself has certain inherent errors, and how to reduce the inherent errors is a major research direction that affects the preparation of the calibration device solution. Contents of the invention [0003] Purpose of the invention: In ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/31G01N21/00
CPCG01N21/00G01N21/31
Inventor 马建龙蒋孝雄王以堃邢金京郑海富欧阳广娜刘滨
Owner JIANGSU INST OF METROLOGY
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