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| [[Image:deltay_bad.png|left|thumb|300px|Figure: The histogram shown in Figure 11a displays the differnce between the position reported by the y-stage and the position measured by the dial indicator. The wide RMS suggests a large non-linearity in the motor.]] || ||
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[[Image:deltay_good.png|right|thumb|300px|Figure: R The histogram in Figure 11b shows the same difference after the dial indicator was used to correct for the non-linearity in the y-stage.]]
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