INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM

• Main Authors: NISHIMURA NAOKI, KIRILL VAN HEERDEN, SAIJO HIROKI, SODEYAMA YOSHINAO, KAMATA RUI, KAWANAMI YASUNORI
• Format: Patent
• Language: English; Japanese
• Published: 25.04.2022
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

To enable easy determination of a liquid surface state.SOLUTION: In each of a light-receiving unit 212u provided above the optical axis of a light-emitting unit 211 and a light-receiving unit 212d provided below the optical axis, a light-receiving signal is generated according to the intensity of received light emitted by the light-emitting unit 211. A liquid-surface state determination unit 30 determines a liquid surface state on the basis of a signal level difference between the light-receiving signal generated in the light-receiving unit 212u and the light-receiving signal generated in the light-receiving unit 212d. This eliminates the need for processing captured-image data and enables easy determination of the liquid surface state even when the liquid temperature is substantially equal to the outside air temperature.SELECTED DRAWING: Figure 1 【課題】液面の状態を容易に把握できるようにする。【解決手段】発光部２１１の光軸に対して上側に設けた受光部２１２ｕと下側に設けた受光部２１２ｄで、発光部２１１からの出射光の受光強度に応じた受光信号を生成する。液面状態判別部３０は、受光部２１２ｕで生成された受光信号と受光部２１２ｄで生成された受光信号の信号レベル差に基づき液面状態を判別する。撮像画データの処理を行う必要がなく、液体温度が外気温と略等しくなるような場合でも、液面の状態を容易に把握できる。【選択図】 図１