Page 90 - 《应用声学》2021年第1期

86 2021 年 1 月

᫼Ћᫎᡰ=0 ᫼Ћᫎᡰ=0
1.0
᫼Ћࠕए=0.15 mm, ᫼Ћ˔஝=100
0.02 ᫼Ћࠕए=0.30 mm, ᫼Ћ˔஝=50
0.8
0.01
0.6 0
F x ⊳F max 0.4 F y ⊳F max -0.01

0.2 -0.02
-0.03
0
᫼Ћࠕए=0.15 mm, ᫼Ћ˔஝=100
-0.04
᫼Ћࠕए=0.30 mm, ᫼Ћ˔஝=50
-0.2 -0.05
0 2 4 6 8 10 12 0 2 4 6 8 10 12
x/mm x/mm
(a) ॆʷӑᣉՔܦᣣ࠱ҧ (b) ॆʷӑഷՔܦᣣ࠱ҧ
᫼Ћᫎᡰ=0.15 mm ᫼Ћᫎᡰ=0.15 mm
1.0 0.01

0.8
0
0.6
F x ⊳F max 0.4 F y⊳F max -0.01

0.2
᫼Ћࠕए=0.15 mm, ᫼Ћ˔஝=30 ᫼Ћࠕए=0.15 mm, ᫼Ћ˔஝=30
0 -0.02
᫼Ћࠕए=0.30 mm, ᫼Ћ˔஝=20 ᫼Ћࠕए=0.30 mm, ᫼Ћ˔஝=20
-0.2
0 2 4 6 8 10 12 0 2 4 6 8 10 12
x/mm x/mm
(c) ॆʷӑᣉՔܦᣣ࠱ҧ (d) ॆʷӑഷՔܦᣣ࠱ҧ

图 7 不同阵元宽度时腹壁组织中沿 x 方向的归一化声辐射力
Fig. 7 The normalized acoustic radiation force on abdominal wall tissue with different element
widths along x direction

᫼Ћࠕए=0.15 mm ᫼Ћࠕए=0.15 mm
1.0
0.03 ᫼Ћᫎᡰ=0, ᫼Ћ˔஝=100
0.8 ᫼Ћᫎᡰ=0.15mm, ᫼Ћ˔஝=50
0.02
0.01
0.6
F x ⊳F max 0.4 F y ⊳F max -0.01 0

0.2 -0.02
-0.03
0
᫼Ћᫎᡰ=0, ᫼Ћ˔஝=100
-0.04
᫼Ћᫎᡰ=0.15mm, ᫼Ћ˔஝=50
-0.2 -0.05
0 2 4 6 8 10 12 0 2 4 6 8 10 12
x/mm x/mm
(a) ॆʷӑᣉՔܦᣣ࠱ҧ (b) ॆʷӑഷՔܦᣣ࠱ҧ
图 8 不同阵元间距时腹壁组织中沿 x 方向的归一化声辐射力
Fig. 8 The normalized acoustic radiation force on abdominal tissue with different element spacing
along x direction