应变式加速度传感器设计.pdf
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1()
2
2
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9 2 3
E = 2 ¥ 10 N/m r = 7.85g/cm
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11 2 3
E = 0.72 ¥ 10 N/m r = 2.86g/cm
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1
3
r = 0.95(g/cm ) V = 0.5
2
M a F = Ma
a
6L
e = x F
x Ebh 2 a
R
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o L (mm)
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o h (mm)
o b (mm)
o r (mm)
o c (mm)
2
o m0 = ¥ (g)
o m1 = ¥ (g)
o m2 = ¥ (g)
m
o () M = m + 2 (kg)
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6
o m3 = ¥ (g)
3
2
2 Ê B ˆ
H = R - R - Á ˜ (mm)
Ë 2 ¯
w0 = (R - H ) - (c + 0.5h) (mm)
wmax w0 (mm)
4 ()
g Fg = Mg (N) = M ¥ 9.807 (N)
()Lx L - 3 (mm)
6F L
()eg = g x (/g)
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