เครื่องวัดกระแสน้ำ | No | 90342 | ||||||||
เครื่องวัดกระแสน้ำ | By | rod | ||||||||
ยี่ห้อ | A-OTT | |||||||||
Model | C 2 "10.150" | |||||||||
Test certificate by | A-OTT | year1966 | ||||||||
1 | Propeller | No | 1 | if n | < | 2.05 | v = | 0.0610n | +0.014 | m/s |
dia | 0.05m | if n | > | 2.05 | v = | 0.0571n | +0.022 | m/s | ||
n | < | 6.32 | v = | 0.0571n | +0.022 | m/s | ||||
if n | > | 6.32 | v = | 0.0533n | +0.046 | m/s | ||||
2 | Propeller | No | 2 | if n | < | 6.43 | v = | 0.1034n | +0.013 | m/s |
dia | 0.10m | if n | > | 6.43 | v = | 0.1020n | +0.022 | m/s | ||
3 | Propeller | No | 3 | if n | < | 0.61 | v = | 0.2307n | +0.017 | m/s |
dia | 0.25m | if n | > | 0.61 | v = | 0.2520n | +0.004 | m/s | ||