| เครื่องวัดกระแสน้ำ | No | 90340 | ||||||||
| 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 = | 0.0611n | +0.015 | m/s |
| dia | 0.05m | if n | > | 2.05 | v = | 0.0572n | +0.023 | m/s | ||
| < | 7.84 | v = | 0.0572n | +0.023 | m/s | |||||
| if n | > | 7.84 | v = | 0.0535n | +0.052 | m/s | ||||
| 2 | Propeller | No | 2 | if n | < | 5.45 | v = | 0.1042n | +0.009 | m/s |
| dia | 0.10m | if n | > | 5.45 | v = | 0.1020n | +0.021 | m/s | ||
| 3 | Propeller | No | 3 | if n | < | 0.74 | v = | 0.2384n | +0.015 | m/s |
| dia | 0.25m | if n | > | 0.74 | v = | 0.2520n | +0.005 | m/s | ||