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Ning Zhu edited section_Analysis_1_Direct_Fit__.tex
over 8 years ago
Commit id: d43073d82263bd3da78fc943f016bfb7abea54a7
deletions | additions
diff --git a/section_Analysis_1_Direct_Fit__.tex b/section_Analysis_1_Direct_Fit__.tex
index d5b2159..2830c96 100644
--- a/section_Analysis_1_Direct_Fit__.tex
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$$B=11.1\times\frac{mT}{A}\times I$$
$$Gain=G_{preamplifier}\times G_{filter}\times G_{lock-in-amplifier}\times G_{lowpass filter}=500\times2\times10\times1=10000$$
$$V_{Photodiode}=\frac{V_{output}\times1.11}{10000}$$
The main method is to change the magnetic field and then to observe the corresponding voltage output from photodiode.30mV, 40mV, 50mV and 60mV have been used to supply the magnetic field, and these are all rms values. Calculation method is shown above, and detailed numeric calculation is shown in the appendix.