ELECTROCHEMICAL TYPE GAS SENSOR, OZONIZER, AND HUMIDIFIER

• Main Authors: MIZUTANI YUKI, YOKOYAMA TAKAHIRO, IMAIZUMI JUNYA, KITO SHINICHIRO, SEGAWA MASAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 21.09.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide an electrochemical type gas sensor that more accurately detects a concentration of gas to be detected, even when a concentration of the gas to be detected contained in an object gas is a low concentration.SOLUTION: In an electrochemical type gas sensor 10, a first detector element 21 is stored in a first storage part 31. In a first introduction port 31A of the first storage part 31, a moisture permeable film 24 is provided. The moisture permeable film 24 substantially blocks the permeation of a gas to be detected. A second detector element 22 is disposed in a space entered by moisture vapor and the gas to be detected contained in an object gas. According to this configuration, the electrochemical type gas sensor 10 can detect a concentration of 0-1 ppm of a gas to be detected.SELECTED DRAWING: Figure 1 【課題】対象気体に含まれる被検知ガスの濃度が低濃度であっても、被検知ガスの濃度をより正確に検知することができる電気化学式ガスセンサを提供する。【解決手段】電気化学式ガスセンサ１０は、第１検知素子２１が第１格納部３１に格納される。第１格納部３１の第１導入口３１Ａには、透湿膜２４が設けられる。透湿膜２４は、被検知ガスの透過を実質的に遮断する。第２検知素子２２は、対象気体に含まれる水蒸気及び被検知ガスが入り込む空間に配置される。電気化学式ガスセンサ１０は、このような構成により、０以上１ｐｐｍ以下の濃度の被検知ガスが検知可能とされる。【選択図】図１