格数Y K
格数Y K 格数Y K 4.000.50 2.00 1.00 1.00 2.001.90 1.050.80 2.500.40 5.001.20 1.67
0.60 3.330.30 6.67
up-p/V ue/V T/s
f/Hz f10.5020.0005210.3535530.0011000
nx ny nx:ny fx fy 221：1500.02500.02241：2250.12500.24462：3333.21499.82
fy ua(fy)u(fy)500.03
0.1
0.1
2009 1.000.40.4 1.6 1.6
f1f2T 35.78935.80123位置x1x2x3x4x5x6x7x8x9读数14.17517.57922.63527.50032.56837.49542.43047.35052.210位置x31x32x33x34x35x36x37x38x39读数154.930159.712164.657169.685174.400179.595184.400189.115194.100i 123456789xi 14.17517.57922.63527.50032.56837.49542.43047.35052.210xi+30154.930159.712164.657169.685174.400179.595184.400189.115194.10030*λ/2140.755142.133142.022142.185141.832142.100141.970141.765141.890ave(15λ)λf v v理论E 141.7699.45125
35.795
338.4
345.1225-1.96%
ua(15λ)ub1(15λ)ub2(15λ)u(15λ)u(λ)ub(f)u(f)u(v)/v u(v)0.1528850.0028870.0038490.1529600.0101970.0034640.0034640.0010830.366541R(k欧)C(μF)RC T(s)tp(s)u1(V)u2(V)测量u2(V)计算620.220.0140.0040.002100.80.7331385000.220.110.0040.00210170+∞
行波法
用模拟示波器测量声速水平偏转
格数测量结果垂直偏转系数反向击穿格数反向击穿
电压正向导通电压频率f=1kHz
偏转系数K=Upp/Y
校准信号y轴灵敏度0.5V/Div
1V/Div 2V/Div 模拟示波器的使用用模拟示波器测量二极管伏安特性信号频率(Hz)信号Vpp(V)偏转系数
正向导通格数测量校准信号测量正弦波的电压与周期
电压峰峰值Upp=2V y轴微调校准位y轴微调中间位y轴微调逆时位李萨如图形项目
垂直偏转格数水平偏转系数用数字示波器测量微积分波形
项目积分(RC>>tp)微分(RC< u1(V)u2(V)t(μs)l(m)C(pF)R(Ω)v 105 1.010010095 2.0E+08驻波法 l(m)R(Ω) 100200 i123 fai951.719302902 Δti 1.05E-061.04E-061.03E-06 fbi427.114002385 Δt'i 1.17E-061.07E-061.05E-06 ave(Δti)v R 1.07E-061.87E+08200 x10 57.835 x40 198.871 10 57.835 198.871 141.036计算
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