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20 October, 20:59

Suppose the measured background level is 5.1 mV. A signal of 20.7 mV is measured at a distance of 29 mm and 15.8 mV is measured at 32.5 mm. Correct the data for background and normalize the data to the maximum value. What is the normalized corrected value at 32.5 mm

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  1. 20 October, 21:05
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    Answer: The normalized corrected value at 32.5 mm = 0.69 mV

    Explanation:

    Signal value V1 = 20.7 mV at

    distance value = 29 mm and

    V2 = 15.8 mV is measured at 32.5 mm.

    It is necessary, therefore, to subtract off this background level from the data to obtain a valid measurement

    V1 = 20.7 - 5.1 = 15.6 mV

    V2 = 15.8 - 5.1 = 10.7mV

    The normalized corrected value at 32.5 mm will be

    Vn = V2/V1 since V1 is the maximum value

    Vn = 10.7/15.6 = 0.69 mV
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