Flow Meter 流量計 1832-2026 (差別化: 産業計測装置軸)。Coriolis効果 1832 Gaspard-Gustave Coriolis (回転座標系・直接質量流量Mass Flow測定)・Coriolis Mass Flow Meter Micro Motion 1977 USA (Emerson 1990買収・現Industry Top・Sensor Tube Vibration測定+Density+温度同時・¥¥¥¥¥¥/¥1M-¥¥¥¥¥¥¥/¥10M Industry Top最高精度0.05%・Custody Transfer取引証明用)・KROHNE Optimass Germany 1991+Endress+Hauser Promass+Yokogawa Rotamass+OVAL+Coriolis日本オーバル・Magnetic Inductive Flow Meter Magflow (Faraday電磁誘導法則・1850 Faraday→1955 Tobinaga商業化・Tobinaga工業日本初・現Yokogawa Admag+Krohne Optiflux+Endress Promag+ABB ProcessMaster・導電性液体専用Industry最広採用・¥¥¥¥/¥30K-¥¥¥¥¥¥/¥1M)・Vortex Flow Meter渦流量計 (von Kármán Vortex 1912・Yokogawa digitalYEWFLO+Emerson Rosemount 8800+Endress Prowirl・Steam+Gas+Liquid汎用)・Ultrasonic Flow Meter超音波 (Transit-Time vs Doppler・Clamp-on非接触・Endress Proline+Krohne Altosonic+Caldon+Panametrics)・Differential Pressure DP (Orifice Plate+Venturi+Flow Nozzle+Pitot Tube・Foxboro→Schneider+Yokogawa)・Variable Area Rotameter面積式 (Glass Float+ABB+Krohne H250)・Positive Displacement容積式 (Oval Gear+Helical Gear+Piston・Liquid Custody Transfer)・Turbine Meter (Blade Rotation・Hoffer+Faure-Herman)・Thermal Mass Flow Controller MFC (半導体製造Industry標準・Brooks+Horiba+MKS+HORIBA STEC+富士電機+CKD)・Range: 1mL/min-100,000m³/h・Accuracy 0.05-1%・Output 4-20mA+HART+Profibus+Modbus+EtherNet/IP+OPC UA・Application: 上下水道+石油Gas Custody Transfer+食品+医薬品+化学プラント+発電所Boiler Steam+原子力+空調HVAC・¥¥¥¥-¥¥¥¥¥¥¥/Industry、2026年Emerson+Endress+Yokogawa+Krohne+ABB+Foxboro主流・Coriolis+Magnetic+Ultrasonic主流。