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ERROR BARS IN LOGGER PRO
dilvin özkan cansu kaya
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In this powerpoint presentation, the aim is to show ;
how to draw error bars by using logger pro (3.8) how to add maximum and minimum lines (worst lines) how to add different values of uncertainty for each measurement PS: Point 2 and 3 are especially necessary for your physics classes.
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adding error bars First enter your datas and draw the best fit line that you want.
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Then press on data set with double click and choose ‘options’ from the window that is opened.
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If you want, you can add best fit line
If you want, you can add best fit line. (For this experiment , linear fit is suitable.)
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adding maximum and minimum lines
First press “f(x), curve fit” button and choose “manuel fit type”. Unfortunately, it should be done manuelly... Enter ‘m(slope)’ and ‘b(y-intercept)’ values and then, try to fit these lines.
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adding different uncertainty values for each measurement
First of all, draw your graph with techniques that you have already learnt by using logger pro.
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Then, choose ‘Data’ section and ‘New Data Set’.
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Enter your uncertainty values for each colomn to Data Set 2.
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Then, go back to your original datas
Then, go back to your original datas. And click double on the title of colomn that you want. A window called ‘Manuel Colomn Options’ comes and choose ‘Options’ section. Tick ‘Error Calculations’ and ‘Use Colomn’ parts.
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Let’s assume that you chose X column from data set 1 and you want to add its uncertainty values which are accessed to column X in data set 2. You made a double click on title of column X in data set 1. After ticking ‘use column’ part, choose ‘Data Set 2|X.
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Now, let’s add the uncertainty values of Y column on data set 1 by using the techniques you learned.
You can use two different methods now. One is using ‘Error Constant’ part and the other one is by using ‘Use Column’ part.
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