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Tabelul 4. Parametrii inductoarelor .

rs=2πfLmasQmas la f=1kHz

 

Nr.crt.

Numeref.

LN

[H]t

[%]Q

f Q[MHz]*

Tm

[oC]TM

[oC]

Frecvenţaproprie derezonanţă

[MHz] *

IN[mA]

Rcc

[Ω]

L

măs.[mH] *

Q măst

calc.[%]

Rserie

calc.[Ω]

1. L1 10 µ ±10 40 7.96 M -20 100 22 370 0.72 8.79 µ 0.2456 12.1 0.225

2. L2 220 µ ±10 60 796 k -20 100 4 130 6.5 214.8 µ 0.2606 2.36 5.179

3. L3

1 m ±10 50 796 k -20 100 1.15 60 30 906.1 m 0.2514 9.39 22.6464. L4 2.2 m ±5 80 252 k -20 100 1.2 120 14 2.21 m 1.44 -0.64 9.66

5. L5 10 m ±5 60 79.6 k -20 100 0.5 65 74 10.46 m 1.11 -4.6 59.156

6. L6 100 µ ±10 30 796 M -20 80 4.1 800 0.32 104.3 µ 2.39 -4.3 0.274

7. L7 1 m ±10 80 252 M -20 80 1.2 180 3 1.02 m 2.13 -2.2 3.003

8. L8 1 µ ±10 30 2.52 M -55 125 33 189 2.1 1.143 µ 0.0104 -14.3 0.691

9. L9 4.7 µ ±10 30 7.96 M -55 125 50 224 1.5 4.62 µ 0.0205 1.66 1.417

10. L10 0.68 µ ±5 30 30 M -55 125 400 180 1.4 0.615 µ 0.005 9.56 0.773

11. L11

4.7 µ ±5 35 7.96 M -55 125 140 160 1.8 4.91 µ 0.0171 -4.64 1.80712. L12 47 µ ±10 50 2.52 M -20 85 10 140 5 46.81 µ 0.0816 0.4 3.604

13. L13 1 m ±10 20 252 k -20 85 2.5 30 40 1.04 m 0.1922 -4.6 34.195

14. L14 33 m ±10 90 796 M -20 80 0.21 30 110 33.62 m 2.628 -1.88 80.381

15. L15 100 m ±10 35 252 M -20 80 0.11 15 420 102.2 m 2.109 -2.2 304.477

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Tabelul 2 Variaţia inductanţei şi a factorului de calitate cu frecvenţa

f(kHz) L3 L5 L7 L9 L13 L14 L15

0.1L (mH) 0.906 10.51 104 4.6 µ 1.046 34.23 104.2

Q 0.1963 0.1138 0.225 0.002 0.0192 0.2854 0.2235

0.12L (mH) 0.906 10.52 104 4.78 µ 1.046 34.24 104.2

Q 0.2352 0.1365 0.2697 0.0025 0.0231 0.341 0.2680

1L(mH) 0.906 10.48 102.3 4.637 µ 1.046 33.65 102.3

Q 2.2512 1.11 2.135 0.0206 0.1921 2.622 2.105

10 L(mH) 0.901 9.645 97.36 4.633 µ 1.044 31.48 96.49Q 9.673 7.562 14.82 0.2057 1.882 15.57 12.95

100L(mH) 0.895 8.632 136.6 4.577 µ 1.012 33.97 129.8

Q 15.92 13.39 30.67 2 14.46 56.45 27.03

200L(mH) 0.887 9.082 -308.6 4.599 µ 1.002 47.36 -397.3

Q 23.49 17.29 9.726 3.906 26.06 25.91 4.803

Se observa o crestere foarte accentuate a factorului de calitate la frecvente mari , dar totusi inferioare

frecventei de rezonanta, de unde si cresterea monotona a parametrului Q. Inductanta ramand aproape constanta pe

parcursul tuturor masuratorilor

 

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Tabelu l 3 Co m portare a în fun cţi e d e frecvenţă

L14

f(kHz) UI

[Vvv]I=UI/Rs[mAvv]

La=UG/ωI[mH]

1 7.4 0.74 430.15

10 19.8 1.98 16.08

50 16.6 1.66 3.84

100 9.2 0.92 3.46

200 2.4 0.24 6.63

300 0.4 0.04 26.53

400 0.4 0.04 -19.89500 20 2 17

L15 f(kHz) UI

[Vvv]I=UI/Rs[mAvv]

La=UG/ωI[mH]

1 19.8 1.98 160.76

10 17.4 1.74 18.29

50 6.4 0.64 9.95

100 2.32 0.232 13.72

200 0.16 0.016 99.47

300 0.64 0.064 -16.58

400 1.04 0.104 -7.65

500 2 0.2 10