improve katex style
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@@ -238,7 +238,8 @@ I(V1): -0.000243902 device_current
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$$
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\begin{align*}
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I(R1) + I(R2) + I(R3) &= -0.000243902 + 0.000121951 + 0.000121951 \\\
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& \quad \thickspace I(R1) + I(R2) + I(R3) \\\
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&= -0.000243902 + 0.000121951 + 0.000121951 \\\
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&= \boxed{0}
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\end{align*}
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$$
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@@ -263,7 +264,8 @@ $$
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$$
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\begin{align*}
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V(n001) - V(n002) - V(n003) &= 2.43902 - 0.12196 - 0.12196 \\\
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& \quad \thickspace V(n001) - V(n002) - V(n003) \\\
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&= 2.43902 - 0.12196 - 0.12196 \\\
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&= 0 \\\
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\boxed{\text{True}}
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\end{align*}
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@@ -730,7 +732,7 @@ $$
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I_{total} &= I(R2) + I(R1) \\\
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I_{total} &= 0.0005 + 0.0005 \\\
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I_{total} &= 0.001 \\\
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& 0.001 = 0.001 \; \boxed{\text{True}}
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& 0.001 = 0.001 \\; \boxed{\text{True}}
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\end{align*}
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$$
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@@ -1137,9 +1139,11 @@ $V = 4.441V, T = 30.25 \degree C$
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惠斯通电桥比普通分压器更灵敏,因为它的输出电压受电阻比例变化的影响较小。当惠斯通电桥平衡时(即 $R1/R2 = R3/R4$),中心的电流表中的电流为零。此时,计算出的阻值不再受到导线、电阻和伏特计固有电阻的影响,从而使得测量结果更准确。
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优点:
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- 惠斯通电桥比分压器更准确
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- 电压源不需要校准即可测量阻值
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缺点:
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- 分压器更容易且成本更低制作
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- 功耗较低
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