WATER CONTENT RATE MEASUREMENT DEVICE AND WATER CONTENT RATE MEASUREMENT METHOD

To provide a water content rate measurement device and a water content rate measurement method which can highly accurately measure a water content rate of dewatered sludge regardless of distance fluctuation between the dewatered sludge being a measurement target and an infrared moisture meter while suppressing increase in the man-hours of constructing a regression equation for converting optical information measured by the infrared moisture meter into the water content rate.SOLUTION: A water content rate measurement device comprises: an optical sensor which irradiates a measurement object with light to measure optical information; a distance sensor which measures distance information for obtaining distance fluctuation between the measurement object and the optical sensor; and a computing machine which measures a water content rate of the measurement object. The computing machine corrects the optical information on the basis of the distance fluctuation based on the distance information and calculates the water content rate of the measurement object by applying the corrected optical information to a calibration model that derives the water content rate from the optical information.SELECTED DRAWING: Figure 1 【課題】赤外線水分計で計測する光学情報を含水率に変換するための回帰式を構築する工数の増加を抑制しつつ、測定対象物である脱水汚泥と赤外線水分計との間の距離変動にかかわらず脱水汚泥の含水率を高精度に計測できる含水率計測装置及び含水率計測方法を提供する。【解決手段】含水率計測装置は、計測対象物に光を照射して光学情報を計測する光学センサと、計測対象物と光学センサとの間の距離変動を求めるための距離情報を計測する距離センサと、計測対象物の含水率を計測する計算機と、を含む。計算機は、距離情報に基づく距離変動に基づいて、光学情報を補正し、補正した光学情報を、光学情報から含水率を導出する検量モデルに適用することにより計測対象物の含水率を算出する。【選択図】図１