Song Youn Joo,Ha Seung Chul,Jung Hyun Joo,Ko Young Chul,Jeong Yong Won
申请号：
US201514721203
公开号：
US9989474(B2)
申请日:
2015.05.26
申请国别(地区):
美国
年份:
2018
代理人:
Staas & Halsey LLP
摘要：
A gas sensor, a refrigerator having the gas sensor, and a method for controlling the gas sensor recognizes the ripening degree of a target food on the basis of a variation in color using a pH indicator having a color that is changed with pH variation generated when the pH indicator reacts with target gas, a refrigerator having the gas sensor. The gas sensor for detecting target gas includes: a base provided for gas permeation; and a detection unit provided at the base, and is discolored in response to pH variation generated when reacting with target gas having permeated the base.
