เครื่องวัดกระแสน้ำ | No | 8728 | ||||||||
เครื่องวัดกระแสน้ำ | By | Cable way | ||||||||
ยี่ห้อ | A-OTT | |||||||||
Model | ARKANSAS | |||||||||
Test certificate by | A-OTT | year1966 | ||||||||
1 | Propeller | No | 1 | if n | < | 0.85 | v = | 0.2418n | +0.017 | m/s |
n | > | 0.85 | v = | 0.2560n | +0.005 | m/s | ||||
2 | Propeller | No | 2 | if n | < | 0.45 | v = | 0.4585n | +0.028 | m/s |
n | > | 0.45 | v = | 0.5145n | +0.003 | m/s | ||||