Generator chastotasini hisoblaymiz: 𝐟 =1/(2∗𝜋∗𝑅∗𝐶)=1/(2∗3.14∗10∗10−6)=
=15.9 𝑘𝐻𝑧;
Zanjirdagi tokni quyidagi ifoda orqali hisoblaymiz:
𝐼 =𝑈/𝑍=(√𝑅2+(1/(𝓌∗𝐶))2)
Bu yerda, 𝜔 = 2 ∗ 𝜋 ∗ 𝑓
f=(0.2; 0.5; 1; 1.5; 2)
Shuning uchun avval tsiklik chastotasini hisoblab olamiz:
𝜔𝑛= 2 ∗ 𝜋 ∗ 𝑓𝑛
𝜔1= 2 ∗ 3.14 ∗ 0.2 ∗ 15900 = 19.9 ∗ 103𝑟𝑎𝑑/𝑠
𝜔2= 2 ∗ 3.14 ∗ 0.5 ∗ 15900 = 49.9 ∗ 103𝑟𝑎𝑑/𝑠
𝜔3= 2 ∗ 3.14 ∗ 1 ∗ 15900 = 99.8 ∗ 103𝑟𝑎𝑑/𝑠
𝜔4= 2 ∗ 3.14 ∗ 1.5 ∗ 15900 = 149.7 ∗ 103𝑟𝑎𝑑/𝑠
𝜔5= 2 ∗ 3.14 ∗ 2 ∗ 15900 = 199.7 ∗ 103𝑟𝑎𝑑/𝑠
Yuqoridagilardan endi tokni topib olamiz:
𝐼1=2/(√(1∗103)2+(1/(19.9∗103∗10∗10−9))2)= 3.9 ∗ 10−4𝐴
𝐼2=2/(√(1∗103)2+(1/(49.9∗103∗10∗10−9))2)= 8.9 ∗ 10−4𝐴
𝐼3=2/(√(1∗103)2+(1/(99.8∗103∗10∗10−9)2)= 1.4 ∗ 10−3𝐴
𝐼4=2/(√(1∗103)2+(1/(149.7∗103∗10∗10−9)2)= 1.66 ∗ 10−3𝐴
𝐼5=2/(√(1∗103)2+(1/(199.7∗103∗10∗10−9)2)= 1.78 ∗ 10−3𝐴
Qarshilikdagi kuchlanish pasayuvini hisoblaymiz:
UR=R*I=U*R/Z=RU/√(R2+(1/( 𝜔*C)2))
𝑈𝑅1= 𝑅 ∗ 𝐼1= 1 ∗ 103∗ 3.9 ∗ 10−4= 0.39 𝑉
𝑈𝑅2= 𝑅 ∗ 𝐼2= 1 ∗ 103∗ 8.9 ∗ 10−4= 0.89 𝑉
𝑈𝑅3= 𝑅 ∗ 𝐼3= 1 ∗ 103∗ 1.4 ∗ 10−3= 1.4 𝑉
𝑈𝑅4= 𝑅 ∗ 𝐼4= 1 ∗ 103∗ 1.66 ∗ 10−3= 1.66 𝑉
𝑈𝑅5= 𝑅 ∗ 𝐼5= 1 ∗ 103∗ 1.78 ∗ 10−3= 1.78 𝑉
Sig’imdagi kuchlanish pasayuvini aniqlaymiz:
UC=I/( 𝜔 *C)=U/( 𝜔 *C*Z)=U/( 𝜔*C*√R2+(1/( 𝜔*C)2))
𝑈𝐶1=𝐼1/(𝜔1∗𝐶)=3.9∗10−4/19.9 ∗103∗10∗10−9= 1.95 𝑉
𝑈𝐶2=𝐼2/(𝜔2∗𝐶)=8.9∗10−4/49.9 ∗103∗10∗10−9= 1.78 𝑉
𝑈𝐶3=𝐼3/(𝜔3∗𝐶)=1.4∗10−3/99.8 ∗103∗10∗10−9= 1.4 𝑉
𝑈𝐶4=𝐼4/(𝜔4∗𝐶)=1.66∗10−3/149.7 ∗103∗10∗10−9= 1.108 𝑉
𝑈𝐶5=𝐼5/(𝜔5∗𝐶)=1.78∗10−3/199.7 ∗103∗10∗10−9= 0.891𝑉
Fazani hisoblaymiz:
𝜑1= −𝑎𝑟𝑐𝑡𝑔*𝑈𝐶1/𝑈𝑅1= −𝑎𝑟𝑐𝑡𝑔*1.95/0.390 = −78.5
𝜑2= −𝑎𝑟𝑐𝑡𝑔*𝑈𝐶2/𝑈𝑅2= −𝑎𝑟𝑐𝑡𝑔*1.78/0.893= −63.4
𝜑3= −𝑎𝑟𝑐𝑡𝑔*𝑈𝐶3/𝑈𝑅3= −𝑎𝑟𝑐𝑡𝑔*1.4/1.4= −45
𝜑4= −𝑎𝑟𝑐𝑡𝑔*𝑈𝐶4/𝑈𝑅4= −𝑎𝑟𝑐𝑡𝑔*1.108/1.66= −33.8
𝜑5= −𝑎𝑟𝑐𝑡𝑔𝑈𝐶5𝑈𝑅5= −𝑎𝑟𝑐𝑡𝑔0.891/1.78= −26.7
Barcha hisoblangan qiymatlarni jadvalga kiritamiz:
Ishni bajarish
2-rasmda keltirilgan seximani NI MULTISIM muritida yiging.
1-rasm. NI Multisim dasturiy muhitida rasmdagidek yig’ib olamiz.
2-rasm. Fazometr parametrlari rostlangan holati.
3-rasm. Hosil bo’lgan signalning ko’rininshi
Hisoblash va o’lchov natijalari
Dastlabki
hisoblashlar
|
fC=5680 Hz
|
0.2fG
|
0.5 fG
|
fG
|
1.5fG
|
2fG
|
|
f, Hz
|
3180
|
7950
|
|
15900
|
23850
|
31800
|
UR
|
0.391
|
0.893
|
|
1.41
|
1.66
|
1.78
|
𝝋, grad
|
-78.5
|
-63.4
|
|
-45
|
-33.8
|
-26.7
|
i UC, V
|
1.95
|
1.78
|
|
1.41
|
1.108
|
0.891
|
Tajribada o’lchash
|
i UR, V
|
2.84
|
0.709
|
|
1.418
|
2.127
|
2.836
|
𝝋, grad
|
-78.44
|
-63.41
|
-45.05
|
-30.85
|
-26.823
|
|
U, V
|
1.414
|
1.414
|
1.413
|
1.023
|
0.894
|
|
4-rasm. UR=f(fG) bo’yicha hosil bo’lgan grafik
5-rasm. UC=f(fG) bo’yicha hosil bo’lgan grafik
6-rasm. 𝝋=f(fG) bo’yicha hosil bo’lgan grafik
Xulosa
Bu laboratoriya ishida har xil chastotalarda RC zanjiri kuchlanishlari qiymatlari hamda garmonik tok va kuchlanish orasidagi fazalar siljishini eksperimental aniqlashni o’rgandim. NI dasturiy muhiti yordamida fazometr ishlashini va ikki garmonik qiymatlar orasidagi fazalar farqini fazometr yordamida o’lchadim. Osillograf orqali hosil bo’lgan signalning grafigini hosil qildim va amaliy ko’nikmaga ega bo’ldim.
Do'stlaringiz bilan baham: |