WebDec 11, 2024 · An acre-inch is the volume of water that would be required to cover an area of 1 acre to a depth of 1 inch. The relationships among these units are: 1 acre-inch = 27,154 gallons = 102,642 liters = 102.8 cubic meters (m3) 1 acre-foot = 12 acre-inches = 12.34 ha-cm. 1 acre-foot = 325,848 gallons = 1233.5 cubic meters. WebOct 20, 2024 · Electromagnetic flow meters – Also called magnetic meters or mag meters for short, operate by Faraday’s Law – if a conductive fluid, such as irrigation water, goes through a magnetic field, it creates a small voltage. The motion of a conductive fluid through the field generates a small amount of electricity, just like a generator (more flow = more …
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