Error reduction method of automatic calibration device of online water quality analyzer

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. 本发明公开了种水质在线分析仪自动校准装置的误差降低方法，通过水质在线分析仪自动校准装置配制浓度为c重铬酸钾溶液母液，在定波长下测量溶液吸光度A，使用校准装置在不同分配比下配制溶液，使用分配比计算溶液的理论吸光度A-A，在同样条件下测得实际