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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /339/CH10/EX10.2 | |
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initial commit / add all books
Diffstat (limited to '339/CH10/EX10.2')
| -rwxr-xr-x | 339/CH10/EX10.2/ex10_2.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/339/CH10/EX10.2/ex10_2.sce b/339/CH10/EX10.2/ex10_2.sce new file mode 100755 index 000000000..97543916e --- /dev/null +++ b/339/CH10/EX10.2/ex10_2.sce @@ -0,0 +1,30 @@ +stacksize("max");
+//define crystal parameters
+Lq=0.1;
+Rq=25;
+Cq=0.3*10^-12;
+C0=1*10^-12;
+
+//find series resonance frequency
+ws0=1/sqrt(Lq*Cq);
+disp(ws0);
+ws=ws0*(1+Rq^2/2*C0/Lq);
+fs=ws/2/%pi
+
+//find parallel resonance frequency
+wp0=sqrt((Cq+C0)/(Lq*Cq*C0));
+wp=wp0*(1-Rq^2/2*C0/Lq);
+fp=wp/2/%pi
+
+//define frequency range for this plot
+f=(0.9:0.00001:1.1)*1e6;
+w=2*%pi*f;
+
+//find abmittance of the resonator
+Y=%i.*w*C0+1./(Rq+%i*(w*Lq-1./(w*Cq)));
+
+plot(f/1e6,abs(imag(Y)));
+mtlb_axis([0.9 1.1 1e-10 1e-1]);
+title('Admittance of the quartz crystal resonator');
+xlabel('Frequency {\itf}, MHz');
+ylabel('Susceptance |B|, \Omega');
\ No newline at end of file |