旋轉水表適用於測量小直徑管道中單向水流的總量。例如，15mm、20mm規格的管道家庭用水消耗測量。這種水表主要由外殼、葉輪測量機構和減速機構組成，以及指示表，特點是結構簡單。水表的種類繁多，包括沒有輸出的機械式水表。有信號輸出的水表，大多數是類比輸出，但也有專利技術的後端數字式。此外，還有多種旋翼水表的測量原理，例如，水流驅動旋翼驅動齒輪計數，還有旋翼每轉一圈輸出一個脈衝信號，後面的電路進行計數。旋翼式單梁水表的工作原理是：水流從外殼進口切向衝擊葉輪使其旋轉，然後通過齒輪減速機構持續記錄葉輪的轉數，以便記錄通過水表的累積流量。或 water meter is suitable for measuring the total amount of unidirectional water flow in small diameter pipes. Such as with a caliber of 15mm, 20mm specifications of the pipeline household water consumption measurement. This kind of water meter is mainly composed of shell, impeller measuring mechanism and deceleration mechanism, as well as indication table, and is characterized by simple structure. There are many kinds of meters, including Mechanical ones without output. With signal output, with signal output is mostly analog output, but there are also patented technology back-end digital style. In addition, there are many kinds of rotary-wing water meters Measuring principle, for example, the water flow drives the rotary wing Drive the gears to count, there are also rotary wing every turn to output a pulse signal, the back of the circuit to count. The working principle of rotary wing type single beam water meter is: the water flow from the case inlet tangentially impacts the impeller to make it rotate, and then through the gear deceleration mechanism to continuously record the number of revolutions of the impeller, so as to record the cumulative flow rate through the water meter.