Page 529 - index

90-ɫɭɪɟɬ

Ȼԝɥ ɠɟɪɞɟɝi:
Ⱥ' – ɠɨԑɚɪԑɵ ɛԧɥɿɤɬɿԙ ɚɭɞɚɧɵ;
ɭ1 – ɷɥɟɦɟɧɬɚɪ ɚɭɞɚɧɧɵԙ ɨɪɞɢɧɚɬɵ (90 Ω-ɫɭɪɟɬ);

³ ɭ1dȺ Sx – ԕɢɦɚɧɵԙ ɠɨԑɚɪԑɵ ɛԧɥɿɝɿɧɿԙ ɫɬɚɬɢɤɚɥɵԕ ɦɨɦɟɧɬɿ.

Ⱥ/

ɋɨɧɵɦɟɧ,

N M ˜ S * . (7.18)
x

Jx

ɋɨɥ ɫɟɤiɥɞi, ɨԙ ɠɚԕ ԕɢɦɚɞɚԑɵ ɛɨɣɥɵԕ ɤԛɲ:
M
N dN dM ˜ S * . (7.19)
Jx x

ɋɨԙԑɵ ɟɤi ɤԛɲɬiԙ ɚɣɵɪɦɚɫɵ:

dN dM ˜ S * . (7.20)
x

Jx

ɋɨԙԑɵ ԧɪɧɟɤɬi (7.17) ɮɨɪɦɭɥɚԑɚ ԕɨɣɫɚԕ,

W Q ˜ S * . (7.21)
x

J x ˜ bx

Ⱥɥɵɧԑɚɧ (7.21) ɮɨɪɦɭɥɚ ɚɪԕɵɥɵ ɛɨɣɥɵԕ ԕɢɦɚɞɚԑɵ ɠɚɧɚɦɚ ɤɟɪɧɟɭɥɟɪɞɿ
ɟɫɟɩɬɟɭɝɟ ɛɨɥɚɞɵ. Ʉԧɥɞɟɧɟԙ ԕɢɦɚɞɚԑɵ ɤɟɪɧɟɭɥɟɪ ɨɫɵ ɠɚɧɚɦɚ ɤɟɪɧɟɭɥɟɪɝɟ
ɬɟԙ ɟɤɟɧɿ ɠɨԑɚɪɵɞɚ ɚɣɬɵɥɞɵ. ɋɨɧɞɵԕɬɚɧ ɨɫɵ ɮɨɪɦɭɥɚɧɵԙ ɤԧɦɟɝɿɦɟɧ,
ɤԧɥɞɟɧɟԙ ԕɢɦɚɞɚԑɵ ɠɚɧɚɦɚ ɤɟɪɧɟɭɞɟɪɞɿ ɞɟ ɚɧɵԕɬɚɭԑɚ ɛɨɥɚɞɵ.
2) Ʉԧɥɞɟɧɟԙ ɢɿɥɭɞɿԙ ɟɤɿɧɲɿ ɬԛɪɿɧ, ɹԑɧɢ ɤԧɥɞɟɧɟԙ ɤԛɲ ԧɡɝɟɪɦɟɥɿ ɛɨɥԑɚɧ
ɠɚԑɞɚɣɞɚ ( Q z const ) ԕɚɪɚɫɬɵɪɚɣɵԕ. Ȼԝɥ ɤɟɡɞɟ, ɠɚɡɵԕ ԕɢɦɚɥɚɪ ɠɨɪɚɦɚɥɵɧ

ԕɨɥɞɚɧɭԑɚ ɛɨɥɦɚɣɬɵɧɵɧ ɠɨԑɚɪɵɞɚ ɚɣɬԕɚɧɛɵɡ. ɋɨɧɞɵԕɬɚɧ ɬɚɡɚ ɢɿɥɭɞɟɝɿ
ɮɨɪɦɭɥɚɥɚɪ ɛɿɪɲɚɦɚ ɚɭɵɬԕɭ ɛɟɪɟɞɿ. Ɉɧɵɦɟɧ ԕɨɫɚ, ɚɪԕɚɥɵԕɬɵԙ
«ԕɚɛɚɬɬɚɪɵɧɵԙ» ɚɪɚɥɚɪɵɧɞɚ ɬɿɤ ɤɟɪɧɟɭɥɟɪ ɩɚɣɞɚ ɛɨɥɚɞɵ. Ɍԥɠɿɪɢɛɟɥɟɪ ɦɟɧ
ɡɟɪɬɬɟɭɥɟɪɞɿԙ ɤԧɪɫɟɬɭɿɧɟ ԕɚɪɚԑɚɧɞɚ, ɛԝɥ ɤɟɪɧɟɭɥɟɪɞɿԙ ɲɚɦɚɫɵ ɚɪԕɚɥɵԕɬɚɪ

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