MOISTURE DETECTION DEVICE AND MOISTURE DETECTION METHOD

• Main Authors: SAKAKIBARA YOHEI, KAWARAZAKI TAKUYA, SHINOZAKI IPPEI
• Format: Patent
• Language: English; Japanese
• Published: 25.07.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To easily detect moisture in liquid ammonia.SOLUTION: A moisture detection device 100 includes a storage part 102 that stores liquid ammonia LA, a light-emitting part 134 that is immersed in the liquid ammonia LA and emits an infrared ray in at least one wavenumber range among a first wavenumber range of 5300 cm-1 or more and 6100 cm-1 or less, a second wavenumber range of 6100 cm-1 or more and 6500 cm-1 or less, a third wavenumber range of 6800 cm-1 or more and 7700 cm-1 or less, a fourth wavenumber range of 8400 cm-1 or more and 9600 cm-1 or less, a light-receiving part 136 that is immersed in the liquid ammonia LA and receives the infrared ray emitted from the light-emitting part 134, and a calculation part 242 that calculates the concentration of moisture in the liquid ammonia LA on the basis of a light reception result by the light-receiving part 136.SELECTED DRAWING: Figure 1 【課題】液体アンモニア中の水分を簡易に検出する。【解決手段】水分検出装置１００は、液体アンモニアＬＡを貯蔵する貯蔵部１０２と、液体アンモニアＬＡに浸漬され、５３００ｃｍ－１以上６１００ｃｍ－１以下の第１の波数範囲、６１００ｃｍ－１以上６５００ｃｍ－１以下の第２の波数範囲、６８００ｃｍ－１以上７７００ｃｍ－１以下の第３の波数範囲、および、８４００ｃｍ－１以上９６００ｃｍ－１以下の第４の波数範囲の少なくとも１つの波数範囲の赤外線を照射する発光部１３４と、液体アンモニアＬＡに浸漬され、発光部１３４によって照射された赤外線を受光する受光部１３６と、受光部１３６による受光結果に基づいて、液体アンモニアＬＡ中の水分の濃度を演算する演算部２４２と、を備える。【選択図】図１