eceb211lab1

1、ECEB211 Measurement and InstrumentationLab 1Title: Experiment E1: Error in Experimental DataExperiment E2: Basic Statistical SamplingMajor: ECEName: Student No.Lam Kai Un DB028100Chan Long Wai

2、 DB027224Compomemt Tolerance Error, E1 A Error in Reading, E1 BEa (V) Rb Values (Ω) Ein(V) 14.4Resistance Values (kΩ) Average Resistance (kΩ)3.566 10.00 2272.733.585 3.575 10.00 2272.733.558 3.5403.57110.01 2280.18A

3、verage Rb (Ω)3.583 3.578 9.99 2265.303.559Range errors (Ω)3.581 10.01 2280.182272.7343.574 3.565 10.00 2272.73 Range of errors (Ω) 3.5700.0273.567 10.00 2272.733.590 3.578Percentage of error10.00 2272.732272.743.577 3.5

4、66 9.99 2265.30 Percentage of error 3.5940.81%3.571 10.00 2272.733.545 3.577Actual value of R (kΩ)3.561 3.5773.3061%3.5673.6Data Tables for Experiment E1Analysis of results:In the experiment E1A, first we record the vol

5、tage of Ea of the different resistor, then we use the equation 4 to find out the respectively value Rb. After that, we use the equation1 to find out the average Rb. Finally, we use the equation 2 and 3 to find the range

6、of error and percentage error. In the experiment E1B, unlike in E1A, we record the resistance of the different resistor directly. After this part, the remain parts are just like the rest of E1A.ConclusionCompare the expe

7、riment E1A and E1B, we find that the percentage error of E1B is much smaller than the one of E1A.The differences between the two experiments are:The number of the resistor that we used, and the way we get the resistance