| เครื่องวัดกระแสน้ำ | No | 90341 | ||||||||
| เครื่องวัดกระแสน้ำ | By | rod | ||||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | C 2 "10.150" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 | if n | < | 2.35 | v = | 0.0606n | +0.017 | m/s |
| dia | 0.05m | if n | > | 2.35 | v = | 0.0572n | +0.025 | m/s | ||
| n | < | 6.67 | v = | 0.0572n | +0.025 | m/s | ||||
| if n | > | 6.67 | v = | 0.0542n | +0.045 | m/s | ||||
| 2 | Propeller | No | 2 | if n | < | 8.33 | v = | 0.1024n | +0.016 | m/s |
| dia | 0.10m | if n | > | 8.33 | v = | 0.1012n | +0.026 | m/s | ||
| 3 | Propeller | No | 3 | if n | < | 0.63 | v = | 0.2297n | +0.019 | m/s |
| dia | 0.25m | if n | > | 0.63 | v = | 0.2535n | +0.004 | m/s | ||