| เครื่องวัดกระแสน้ำ | No | 90344 | ||||||||
| เครื่องวัดกระแสน้ำ | By | rod | ||||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | C 2 "10.150" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 | if n | < | 1.90 | v = | 0.0620n | +0.012 | m/s |
| dia | 0.05m | if n | > | 1.90 | v = | 0.0578n | +0.020 | m/s | ||
| < | 6.74 | v = | 0.0578n | +0.020 | m/s | |||||
| if n | > | 6.74 | v = | 0.0535n | +0.049 | m/s | ||||
| 2 | Propeller | No | 2 | if n | < | 4.74 | v = | 0.1041n | +0.010 | m/s |
| dia | 0.10m | if n | > | 4.74 | v = | 0.1023n | +0.019 | m/s | ||
| 3 | Propeller | No | 3 | if n | < | 0.59 | v = | 0.2327n | +0.015 | m/s |
| dia | 0.25m | if n | > | 0.59 | v = | 0.2515n | +0.004 | m/s | ||