Device and method for detecting quality of beef sauce seasoning liquid

The invention discloses a device and a method for detecting quality of a beef sauce seasoning liquid. The method comprises the following steps: detecting each specimen of qualified beef sauce seasoning liquids by a sensor array to obtain m signal-to-noise ratio spectrum characteristic value noise widths, and defining the average value of the signal-to-noise ratio spectrum characteristic value noise widths as a threshold value Thr; obtaining the signal-to-noise ratio spectrum characteristic value noise width sigma of a beef sauce seasoning liquid sample A; calculating a dynamic classification parameter delta of the beef sauce seasoning liquid sample A by using a nonlinear self-calibration dynamic classification model; and judging whether the beef sauce seasoning liquid sample A is qualified or unqualified by a computer. The device and the method have the characteristics of capabilities of detecting the quality of the beef sauce seasoning liquid accurately and providing reliable data support for a manufacturer