Journal of Appliance Science & Technology ›› 2023, Vol. 0 ›› Issue (1): 104-107.doi: 10.19784/j.cnki.issn1672-0172.2023.01.018

• Articles • Previous Articles     Next Articles

Research and application of washing solution concentration identification method

YIN Junming1, XU Sheng1,2, LI Pingping1, HUANG Zhenxing1, LI Dong2, LV Yanfen1   

  1. 1. Qingdao Haier Washing Machine Co., Ltd. Qingdao 266101;
    2. State Key Laboratory of Digital Home Appliances Qingdao 266101
  • Online:2023-02-01 Published:2023-04-24

Abstract: For a wide variety of detergent products, how to accurately identify the concentration of detergent has become a new hotspot and difficulty in the research field of intelligent washing machines. Through the research and analysis of the detergent identification method, it is concluded that the change of the conductivity of the solution can indirectly reflect the change of the detergent concentration. Based on the conductivity identification principle of the quadrupole method, the detergent concentration identification module is designed and tested. The results verify the feasibility, accuracy and stability of the identification method.

Key words: Detergent, Electrical conductivity, Concentration identification, Quadrupole method

CLC Number: