公开(公告)号：US20250027921A1

公开(公告)日：2025-01-23

申请号：US18909418

申请日：2024-10-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yohei YAMAGUCHI ,  Masako TENPAKU

IPC: G01N33/00 ,  G01N21/3504

Abstract: A gas concentration measurement device that includes: a waterproof housing including a wall that defines an internal space, the wall including an opening communicating between the internal space and an outside of the housing; a measurement instrument in the internal space, the measurement instrument constructed to measure a concentration of a gas; a gas permeable membrane covering the opening, the gas permeable membrane allowing passage of the gas and substantially blocking passage of moisture; and a driving body constructed to vibrate the gas permeable membrane.