A device for detecting the liquid water content in cigarette filters and its preparation method.
An electrochemical detection device integrating a water core, hydrogen evolution catalyst layer, proton exchange membrane, oxygen evolution catalyst layer, and supercapacitor into a cigarette filter has solved the problem of detecting liquid water leakage in cigarette filters, achieving efficient monitoring of liquid water content and improving cigarette quality and smoking comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUBEI CHINA TOBACCO INDUSTRY CO LTD
- Filing Date
- 2023-05-18
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies lack effective devices and methods to detect leakage of liquid water in cigarette filters, especially during transportation and storage, which leads to the inability to detect the evaporation of liquid water and the damage to the water-proof and breathable membrane at the end of the filter in a timely manner.
A detection device comprising a water filter, a hydrogen evolution catalyst layer, a proton exchange membrane, an oxygen evolution catalyst layer, a supercapacitor, and a current sensor is used to detect the permeation and electrolysis reactions of liquid water in situ through electrical signals, and to determine the liquid water content by utilizing the trace current generated by the electrochemical reaction.
It enables quantitative and qualitative detection of liquid water in cigarette filters. Its simple and compact structure is compatible with cigarette filters, improving cigarette quality and smoking comfort.
Smart Images
Figure CN116593549B_ABST