Kalkulator do sprawka PCM 30 |
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Linki: |
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1.a. Pomiar zegara 2 MHz |
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1.b. Pomiar zegara 4 kHZ |
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2. Pomiar tłumienności skutecznej dla wszystkich kanałów dla f = 1 kHz, poziom wej. –10 dB. |
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3. Pomiar szumów tła dla wszystkich kanałów |
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4. Pomiar charakterystyki tłumienności skutecznej w funkcji częstotliwości (200..3400 Hz) dla wybranych kanałów, poziom wejściowy –10 dB |
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5. Pomiar charakterystyki tłumienności skutecznej w funkcji poziomu sygnału wejściowego dla wybranych kanałów przy f = 1 kHz. |
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1.a. Pomiar zegara 2 MHz |
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Lp. |
1 |
2 |
3 |
4 |
5 |
Średnia |
Odchyłka od wymaganej wartości 2048 kHz |
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f [kHz] |
2069,5 |
2048,0 |
2058,2 |
2065,2 |
2067,3 |
2061,6 |
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Błąd bezwzg. |
1,05% |
0,00% |
0,50% |
0,84% |
0,94% |
0,67% |
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1.b. Pomiar zegara 4 kHZ |
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Lp. |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
Średnia |
Uszkodzenie zegara ! |
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f [kHz] |
210,1 |
233,3 |
233,6 |
211,3 |
212,2 |
24,9 |
78,4 |
172,0 |
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Błąd bezwzg. |
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2. Pomiar tłumienności skutecznej dla wszystkich kanałów dla f = 1 kHz, poziom wej. –10 dB. |
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Wzmocności !!!!!!!! |
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Kanał |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
N [dB] |
7 |
7 |
7 |
7 |
7 |
* |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
* |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
7 |
A [dB] |
-17 |
-17 |
-17 |
-17 |
-17 |
* |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
* |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
-17 |
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3. Pomiar szumów tła dla wszystkich kanałów |
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Kanał |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
Nsz [dB] |
-60 |
-62 |
-60 |
-63 |
-60 |
-51 |
-62 |
-59 |
-62 |
-61 |
-60 |
-60 |
-61 |
-62 |
-62 |
-63 |
-59 |
-62 |
-62 |
-59 |
-52 |
-61 |
-61 |
-59 |
-60 |
-59 |
-59 |
-59 |
-59 |
-61 |
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4. Pomiar charakterystyki tłumienności skutecznej w funkcji częstotliwości (200..3400 Hz) dla wybranych kanałów, poziom wejściowy Nwe = –10 dB |
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Kanał 4 |
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f [Hz] |
100 |
150 |
200 |
250 |
300 |
400 |
500 |
600 |
800 |
AMBiegaj:
A f0 = 1000 Hz
alfa = A - A f0
1000 |
1200 |
1500 |
1800 |
2000 |
2200 |
2400 |
2600 |
2800 |
3000 |
3200 |
3400 |
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N wy [dB] |
1,0 |
4,0 |
6,0 |
6,2 |
6,4 |
6,6 |
6,7 |
6,8 |
6,9 |
6,9 |
7,0 |
7,0 |
6,8 |
6,8 |
6,8 |
6,7 |
6,7 |
6,7 |
6,6 |
6,5 |
6,4 |
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AMBiegaj:
Tłum. Skut.
A [dB] |
-11,0 |
-14,0 |
-16,0 |
-16,2 |
-16,4 |
-16,6 |
-16,7 |
-16,8 |
-16,9 |
-16,9 |
-17,0 |
-17,0 |
-16,8 |
-16,8 |
-16,8 |
-16,7 |
-16,7 |
-16,7 |
-16,6 |
-16,5 |
-16,4 |
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AMBiegaj:
Zniekształcenia tłumieniowe
alfa [dB] |
5,90 |
2,90 |
0,90 |
0,70 |
0,50 |
0,30 |
0,20 |
0,10 |
0,00 |
0,00 |
-0,10 |
-0,10 |
0,10 |
0,10 |
0,10 |
0,20 |
0,20 |
0,20 |
0,30 |
0,40 |
0,50 |
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Kanał 16 |
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f [Hz] |
150 |
200 |
250 |
300 |
400 |
500 |
600 |
800 |
AMBiegaj:
A f0 = 1000 Hz
alfa = A - A f0
1000 |
1200 |
1500 |
1800 |
2000 |
2200 |
2400 |
2600 |
2800 |
3000 |
3200 |
3400 |
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N wy [dB] |
1,5 |
5,8 |
6,1 |
6,3 |
6,4 |
6,5 |
6,6 |
6,8 |
6,9 |
6,9 |
6,9 |
6,8 |
6,8 |
6,8 |
6,7 |
6,7 |
6,6 |
6,5 |
6,4 |
6,3 |
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AMBiegaj:
Tłum skut.
{Pwej-Pwyj}
A [dB] |
-11,5 |
-15,8 |
-16,1 |
-16,3 |
-16,4 |
-16,5 |
-16,6 |
-16,8 |
-16,9 |
-16,9 |
-16,9 |
-16,8 |
-16,8 |
-16,8 |
-16,7 |
-16,7 |
-16,6 |
-16,5 |
-16,4 |
-16,3 |
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AMBiegaj:
Zniekształcenia tłumieniowe
alfa [dB] |
5,40 |
1,10 |
0,80 |
0,60 |
0,50 |
0,40 |
0,30 |
0,10 |
0,00 |
0,00 |
0,00 |
0,10 |
0,10 |
0,10 |
0,20 |
0,20 |
0,30 |
0,40 |
0,50 |
0,60 |
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5. Pomiar charakterystyki tłumienności skutecznej w funkcji poziomu sygnału wejściowego dla wybranych kanałów przy f = 1 kHz. |
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Wzmocności !!!!!!!! |
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Kanał 4 |
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Nwe [dB] |
-3,0 |
-5,0 |
-6,0 |
-10,0 |
-12,0 |
-15,0 |
-20,0 |
-25,0 |
-27,0 |
-30,0 |
-32,0 |
-34,0 |
-35,0 |
-40,0 |
-42,0 |
-45,0 |
-50,0 |
-52,0 |
-55,0 |
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Nwy [dB] |
9,0 |
8,8 |
8,6 |
7,0 |
5,0 |
2,0 |
-3,0 |
-8,0 |
-10,0 |
-13,0 |
-15,0 |
-17,5 |
-18,5 |
-23,0 |
-25,5 |
-28,5 |
-33,2 |
-35,0 |
-38,5 |
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AMBiegaj:
Właściwie wzmocność
A4 [dB] |
-12,0 |
-13,8 |
-14,6 |
-17,0 |
-17,0 |
-17,0 |
-17,0 |
-17,0 |
-17,0 |
-17,0 |
-17,0 |
-16,5 |
-16,5 |
-17,0 |
-16,5 |
-16,5 |
-16,8 |
-17,0 |
-16,5 |
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Kanał 16 |
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Nwe [dB] |
-3,0 |
-5,0 |
-6,0 |
-10,0 |
-12,0 |
-15,0 |
-20,0 |
-25,0 |
-27,0 |
-30,0 |
-32,0 |
-34,0 |
-35,0 |
-40,0 |
-42,0 |
-45,0 |
-50,0 |
-52,0 |
-55,0 |
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Nwy [dB] |
9,0 |
8,8 |
8,4 |
7,0 |
5,0 |
2,0 |
-3,0 |
-8,0 |
-10,0 |
-13,2 |
-15,5 |
-17,5 |
-18,5 |
-23,4 |
-25,5 |
-25,5 |
-33,2 |
-35,0 |
-38,0 |
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AMBiegaj:
Właściwie wzmocność
A16 [dB] |
-12,0 |
-13,8 |
-14,4 |
-17,0 |
-17,0 |
-17,0 |
-17,0 |
-17,0 |
-17,0 |
-16,8 |
-16,5 |
-16,5 |
-16,5 |
-16,6 |
-16,5 |
-19,5 |
-16,8 |
-17,0 |
-17,0 |
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6. Pomiar zniekształceń kwantyzacji dla wybranych kanałów w funkcji poziomu sygnału wejściowego, f = 1 kHz |
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Kanał 4 |
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Nwe [dB] |
-3,0 |
-5,0 |
-6,0 |
-10,0 |
-12,0 |
-15,0 |
-20,0 |
-25,0 |
-27,0 |
-30,0 |
-32,0 |
-34,0 |
-35,0 |
-40,0 |
-50,0 |
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h [%] |
25,1 |
20,0 |
16,9 |
3,2 |
3,3 |
3,3 |
3,4 |
3,5 |
3,5 |
3,6 |
3,8 |
bs |
bs |
bs |
bs |
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