Title:
SENSOR FOR MEASURING QUALITY OF UREA SOLUTION, AND METHOD
Document Type and Number:
WIPO Patent Application WO/2024/041051
Kind Code:
A1
Abstract:
A sensor for measuring the quality of a urea solution. The sensor comprises a quality sensing element (100) and a signal processing unit (120), wherein the quality sensing element (100) is covered by a urea solution, and the signal processing unit (120) is electrically connected to the quality sensing element (100); the quality sensing element (100) is used for receiving an excitation signal generated by means of the signal processing unit (120), generating a sensing signal and sending the sensing signal to the signal processing unit (120); and the signal processing unit (120) is used for generating the excitation signal and sending same to the quality sensing element (100), receiving the sensing signal sent by the quality sensing element (100), and calculating a quality sensing value of the urea solution according to the sensing signal, which quality sensing value of the urea solution comprises the concentration of urea in the urea solution and the concentration of impurity ions in the urea solution. The sensor can detect impurity ions and accurately measure the concentration of urea, and can also diagnose a so-called IR issue in which a sensing value of the sensor is in a normal range but is not accurate. Further provided is an operation method for a sensor for measuring the quality of a urea solution.
Inventors:
QI BAOHUA (CN)
Application Number:
PCT/CN2023/095041
Publication Date:
February 29, 2024
Filing Date:
May 18, 2023
Export Citation:
Assignee:
NINGBO KAISHI ENVIRONMENTAL PROTECTION TECH CO LTD (CN)
International Classes:
F01N11/00; G01N27/02; G01N29/024
Foreign References:
| CN115822764A | 2023-03-21 | |||
| CN115932037A | 2023-04-07 | |||
| CN211343077U | 2020-08-25 | |||
| CN114441631A | 2022-05-06 | |||
| CN113866263A | 2021-12-31 | |||
| CN114718709A | 2022-07-08 | |||
| CN211819586U | 2020-10-30 | |||
| DE102015212622A1 | 2017-01-12 |
Attorney, Agent or Firm:
JIANGSU SUNDY LAW FIRM (CN)
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