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1. (WO2017152422) HEAT-CONDUCTION-TYPE CONCENTRATION DETECTION MECHANISM AND UREA-BOX LIQUID LEVEL SENSOR

Pub. No.:    WO/2017/152422    International Application No.:    PCT/CN2016/076164
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Mar 12 00:59:59 CET 2016
IPC: G01F 23/64
F01N 3/20
F01N 9/00
Applicants: DONGGUAN ZHENGYANG ELECTRONIC MECHANICAL CO., LTD.
东莞正扬电子机械有限公司
Inventors: KU, Yi-Hsin
顾一新
Title: HEAT-CONDUCTION-TYPE CONCENTRATION DETECTION MECHANISM AND UREA-BOX LIQUID LEVEL SENSOR
Abstract:
A heat-conduction-type concentration detection mechanism (300) comprises a heating device (310) configured to heat a liquid to be detected and a heat-conduction-type concentration detection sensor (330) configured to detect the quality of the liquid to be detected. Evenly-heating devices (320) are disposed on the periphery of the heat-conduction-type concentration detection sensor (330). A urea-box liquid level sensor using the heat-conduction-type concentration detection mechanism (300). The concentration of urea is measured by using the heat-conduction-type concentration detection sensor (330), the measurement precision is high, and the testing effect is not affected by heat shocking.