| เครื่องวัดกระแสน้ำ | No | 90376 | ||||||||
| เครื่องวัดกระแสน้ำ | By | rod | ||||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | C 2 "10.150" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 - 90270 | if n | < | 2.26 | v = | 0.0618n | +0.014 | m/s |
| 0.05 m | if n | > | 2.26 | v = | 0.0565n | +0.026 | m/s | |||
| n | < | 6.50 | v = | 0.0565n | +0.026 | m/s | ||||
| if n | > | 6.50 | v = | 0.0545n | +0.039 | m/s | ||||
| 2 | Propeller | No | 2 - 90628 | if n | < | 5.60 | v = | 0.1038n | +0.010 | m/s |
| 0.10 m | if n | > | 5.60 | v = | 0.1013n | +0.024 | m/s | |||
| 3 | Propeller | No | 3 - 89290 | if n | < | 0.61 | v = | 0.2327n | +0.016 | m/s |
| if n | > | 0.61 | v = | 0.2540n | +0.003 | m/s | ||||