公开(公告)号：US11016201B2

公开(公告)日：2021-05-25

申请号：US16650542

申请日：2018-12-12

申请人： ISQUARE INC.

发明人： Ji Sung Kwon ,  Jung Ho Hwang

IPC分类号： G01T1/178 ,  G01T1/185

摘要： Disclosed is a radiation measuring device capable of measuring concentration of radiation contained in indoor air. The radiation measuring device according to the present invention includes: an ionization chamber configured to be supplied with a voltage and to form a space for ionizing air introduced; a substrate assembly coupled to the ionization chamber and transfer the voltage supplied from the outside to the ionization chamber; a probe member provided in the ionization chamber and configured to detect an electric charge in the ionization chamber; and a switching element connected to the probe member and configured to allow a current to flow when the electric charge is applied to the probe member.