เครื่องวัดกระแสน้ำ | No | 13164 | ||||||||
เครื่องวัดกระแสน้ำ | By | Cable way | 125 | lbs | ||||||
ยี่ห้อ | A-OTT | |||||||||
Model | V "ARK" | |||||||||
Test certificate by | A-OTT | year1966 | ||||||||
1 | Propeller | No | 1 | if n | < | 1.58 | v = | 0.2530n | +0.019 | m/s |
dia | 125 mm | if n | > | 1.58 | v = | 0.2625n | +0.004 | m/s | ||
< | 1.58 | v = | 0.2625n | +0.004 | m/s | |||||
2 | Propeller | No | 1a | if n | < | 1.35 | v = | 0.2531n | +0.017 | m/s |
dia | 125 mm | if n | > | 1.35 | v = | 0.2620n | +0.005 | m/s | ||
< | 1.35 | v = | 0.2620n | +0.005 | m/s | |||||