| เครื่องวัดกระแสน้ำ | No | 90339 | ||||||||
| เครื่องวัดกระแสน้ำ | By | rod | ||||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | C 2 "10.150" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 | if n | < | 1.95 | v = | 0.616n | +0.014 | m/s |
| dia | 0.05m | if n | > | 1.95 | v = | 0.0575n | +0.022 | m/s | ||
| n | < | 7.57 | v = | 0.0575n | +0.022 | m/s | ||||
| if n | > | 7.57 | v = | 0.0538n | +0.050 | m/s | ||||
| 2 | Propeller | No | 2 | if n | < | 5.00 | v = | 0.1042n | +0.007 | m/s |
| dia | 0.10m | if n | > | 5.00 | v = | 0.1018n | +0.019 | m/s | ||
| 3 | Propeller | No | 3 | if n | < | 0.63 | v = | 0.2360n | +0.016 | m/s |
| dia | 0.25m | if n | > | 0.63 | v = | 0.2520n | +0.006 | m/s | ||