28
0688-SOM-00001, Rev: 02
© Tritech International Ltd.
C.7. Medwin Equation
Source: NPL Technical Guides – Speed of Sound in Sea-water
Validity: T = 0 to 35oC, S = 0 to 45ppt, D = 0 to 1000 meters (Medwin H., 1975)
C.8. Leroy Equation
Source: The Acoustic Society Vol. 124, No. 5, Nov 2018
Validity: S = 0 to 42ppt
𝑉𝑉𝑉𝑉𝑉𝑉 = 1449.2 + 4.6𝑇𝑇 − 0.055𝑇𝑇
2
+ 0.00029𝑇𝑇
3
+ (1.34 − 0.010𝑇𝑇)(𝑉𝑉 − 35) + 0.016𝐷𝐷
𝑇𝑇 = 𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇 𝑖𝑖𝑖𝑖 𝑑𝑑𝑇𝑇𝑑𝑑𝑇𝑇𝑇𝑇𝑇𝑇𝑑𝑑 𝐶𝐶𝑇𝑇𝐶𝐶𝑑𝑑𝑖𝑖𝑇𝑇𝑑𝑑
𝑉𝑉 = 𝑉𝑉𝑇𝑇𝐶𝐶𝑖𝑖𝑖𝑖𝑖𝑖𝑇𝑇𝑆𝑆 𝑖𝑖𝑖𝑖 𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑑𝑑 𝑇𝑇𝑇𝑇𝑇𝑇 𝑇𝑇ℎ𝑉𝑉𝑇𝑇𝑑𝑑𝑇𝑇𝑖𝑖𝑑𝑑
𝐷𝐷 = 𝐷𝐷𝑇𝑇𝑇𝑇𝑇𝑇ℎ 𝑖𝑖𝑖𝑖 𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑑𝑑
𝑐𝑐 = 1402.5 + 5𝑇𝑇 − 5.44 ∗ 10
−2
𝑇𝑇
2
+ 2.1 ∗ 10
−4
𝑇𝑇
3
+ 1.33𝑆𝑆 − 1.23 ∗ 10
−2
𝑆𝑆𝑇𝑇 + 8.7
∗ 10
−5
𝑆𝑆𝑇𝑇
2
+ 1.56 ∗ 10
−2
𝑍𝑍 + 2.55 ∗ 10
−7
𝑍𝑍
2
− 7.3 ∗ 10
−12
𝑍𝑍
3
+ 1.2
∗ 10
−6
𝑍𝑍(𝜃𝜃 − 45) − 9.5 ∗ 10
−13
𝑇𝑇𝑍𝑍
3
+ 3 ∗ 10
−7
𝑇𝑇
2
𝑍𝑍 + 1.43 ∗ 10
−5
𝑆𝑆𝑍𝑍
𝑍𝑍 = 𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷ℎ 𝑖𝑖𝑖𝑖 𝑚𝑚𝐷𝐷𝐷𝐷𝐷𝐷𝑚𝑚𝑚𝑚
𝑆𝑆 = 𝑆𝑆𝑆𝑆𝑆𝑆𝑖𝑖𝑖𝑖𝑖𝑖𝐷𝐷𝑆𝑆 𝑖𝑖𝑖𝑖 𝐷𝐷𝑆𝑆𝑚𝑚𝐷𝐷𝑚𝑚 𝐷𝐷𝐷𝐷𝑚𝑚 𝐷𝐷ℎ𝑜𝑜𝑜𝑜𝑚𝑚𝑆𝑆𝑖𝑖𝑜𝑜
𝑇𝑇 = 𝑇𝑇𝐷𝐷𝑚𝑚𝐷𝐷𝐷𝐷𝑚𝑚𝑆𝑆𝐷𝐷𝑜𝑜𝑚𝑚𝐷𝐷 𝑖𝑖𝑖𝑖 𝑜𝑜𝐷𝐷𝑑𝑑𝑚𝑚𝐷𝐷𝐷𝐷𝑚𝑚 𝐶𝐶𝐷𝐷𝑆𝑆𝑚𝑚𝑖𝑖𝑜𝑜𝑚𝑚
𝜃𝜃 = 𝐿𝐿𝑆𝑆𝐷𝐷𝑖𝑖𝐷𝐷𝑜𝑜𝑜𝑜𝐷𝐷
Содержание Tritech Super SeaKing 700 V7 Series
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