MEASUREMENT DEVICE, CALIBRATION CURVE GENERATION SYSTEM, SPECTRUM MEASUREMENT METHOD, CALIBRATION CURVE GENERATION METHOD, ANALYSIS DEVICE, LIQUEFIED GAS PRODUCTION PLANT, AND PROPERTY ANALYSIS METHOD

摘要

A measurement device includes: a container into which sample gas is to be injected; a liquefaction mechanism configured to liquefy the sample gas in the container; a near-infrared probe extending from inside to outside the container; and a near-infrared measuring instrument configured to measure an absorbance spectrum of the sample gas in a state of being liquefied by the liquefaction mechanism, via the near-infrared probe.