Witam. Zawsze chciałem zrobić analizator widma akustycznego z prawdziwego zdarzenia. Na rynku jest dużo propozycji, ale wszystkie są dalece niedoskonałe. Ja chciałem zrobić analizator o dużej dynamice i rozdzielczości. Postanowiłem zaprojektować coś sam: Mój analizator jest wykonany w wersji analogowej na wzmacniaczach operacyjnych LM324. Dzięki temu jest szybszy i nie zawiesza się. Każda linijka składa się z 16 diod. Pierwsza dioda zapala się przy wartości sygnału ok.20 mV, a ostatnia przy 15 V. Daje nam to dynamikę 60dB. Zasilanie: 2x15V/300mA. Ilość segmentów można dowolnie dobierać. Należy tylko odpowiednio zaprojektować częstotliwości środkowe (wszystko według klucza logarytmicznego). Wiadomo - czym więcej elementów, tym lepsza rozdzielczość, ale i większy koszt. Zainteresowanych konkretami odsyłam do dokumentacji. W miarę możliwości postaram się pomóc. https://www.youtube.com/watch?v=KAg971z08yE https://www.youtube.com/watch?v=sW1E_Fmk1vA http://obrazki.elektroda.pl/5170357300_1358450994_thumb.jpg http://obrazki.elektroda.pl/5503162900_1358450995_thumb.jpg http://obrazki.elektroda.pl/7833297500_1358450995_thumb.jpg http://obrazki.elektroda.pl/9676016600_1358450995_thumb.jpg http://obrazki.elektroda.pl/9711087300_1459413295_thumb.jpg
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, " Parametry filtra dla cz?stotliwo?ci akustycznych " ,,,,,,,, " Napi?cia Odniesienia " ,,,
, " A " , " Q " , " c [nF] " , " f [Hz] " , " R1 [k] " , " R2 [k] " , " R3 [ohm] " ,, " R " , " [?] " , " [mV] " ,
, " 7 " , " 8 " , " 220 " , " 20 " , " 41.3599139713789 " , " 579.038795599305 " , " 2144.58813184928 " ,, " Ro= " , " 2200 " ,,
, " 7 " , " 8 " , " 220 " , " 24.94 " , " 33.1675332569198 " , " 464.345465596877 " , " 1719.79802072917 " ,, " R11 " , " 680 " , " 68 " ,
, " 7 " , " 8 " , " 100 " , " 31.10018 " , " 58.5152952407566 " , " 819.214133370592 " , " 3034.12641989108 " ,, " R12 " , " 1000 " , " 94 " ,
, " 7 " , " 8 " , " 100 " , " 38.78192446 " , " 46.9248558466372 " , " 656.947981852921 " , " 2433.14067352934 " ,, " R13 " , " 1500 " , " 115 " ,
, " 7 " , " 8 " , " 100 " , " 48.36105980162 " , " 37.6301971504709 " , " 526.822760106592 " , " 1951.19540780219 " ,, " R14 " , " 2200 " , " 155 " ,
, " 7 " , " 8 " , " 100 " , " 60.3062415726202 " , " 30.1765815160151 " , " 422.472141224212 " , " 1564.71163416375 " ,, " R15 " , " 3000 " , " 215 " ,
, " 7 " , " 8 " , " 100 " , " 75.2018832410574 " , " 24.1993436375422 " , " 338.790810925591 " , " 1254.78078120589 " ,, " R16 " , " 4300 " , " 300 " ,
, " 7 " , " 8 " , " 100 " , " 93.7767484015985 " , " 19.4060494286626 " , " 271.684692001276 " , " 1006.23960000472 " ,, " R17 " , " 6200 " , " 415 " ,
, " 7 " , " 8 " , " 100 " , " 116.939605256793 " , " 15.5621887960405 " , " 217.870643144568 " , " 806.928307942843 " ,, " R18 " , " 9100 " , " 580 " ,
, " 7 " , " 8 " , " 100 " , " 145.823687755221 " , " 12.4797023224062 " , " 174.715832513687 " , " 647.095675976618 " ,, " R19 " , " 13000 " , " 840 " ,
, " 7 " , " 8 " , " 100 " , " 181.842138630761 " , " 10.0077805311998 " , " 140.108927436798 " , " 518.921953469621 " ,, " R20 " , " 20000 " , " 1200 " ,
, " 7 " , " 8 " , " 100 " , " 226.757146872559 " , " 8.02548559037678 " , " 112.356798265275 " , " 416.136289871388 " ,, " R21 " , " 27000 " , " 1700 " ,
, " 7 " , " 8 " , " 100 " , " 282.766162150081 " , " 6.43583447504152 " , " 90.1016826505813 " , " 333.709935742894 " ,, " R22 " , " 39000 " , " 2400 " ,
, " 7 " , " 8 " , " 100 " , " 352.609404201151 " , " 5.16105410989697 " , " 72.2547575385576 " , " 267.610213105769 " ,, " R23 " , " 62000 " , " 3300 " ,
, " 7 " , " 8 " , " 100 " , " 439.703927038836 " , " 4.13877635116036 " , " 57.942868916245 " , " 214.603218208315 " ,, " R24 " , " 82000 " , " 4800 " ,
, " 7 " , " 8 " , " 100 " , " 548.310797017428 " , " 3.31898664888561 " , " 46.4658130843986 " , " 172.095604016291 " ,, " R25 " , " 120000 " , " 6700 " ,
, " 7 " , " 8 " , " 100 " , " 683.743563880733 " , " 2.66157710415847 " , " 37.2620794582186 " , " 138.007701697106 " ,, " R26 " , " 150000 " , " 10000 " ,
, " 7 " , " 8 " , " 100 " , " 852.628224159274 " , " 2.13438420541978 " , " 29.881378875877 " , " 110.671773614359 " ,,,,,
, " 7 " , " 8 " , " 100 " , " 1063.22739552661 " , " 1.71161524091402 " , " 23.9626133727963 " , " 88.7504198992455 "
, " 7 " , " 8 " , " 10 " , " 1325.84456222169 " , " 13.7258640009144 " , " 192.162096012801 " , " 711.711466714078 "
, " 7 " , " 8 " , " 10 " , " 1653.32816909045 " , " 11.0071082605568 " , " 154.099515647796 " , " 570.738946843687 "
, " 7 " , " 8 " , " 10 " , " 2061.70022685579 " , " 8.82687109908326 " , " 123.576195387166 " , " 457.689612545058 "
, " 7 " , " 8 " , " 1 " , " 2570.94018288917 " , " 70.7848524385185 " , " 990.987934139259 " , " 3670.32568199726 "
, " 7 " , " 8 " , " 1 " , " 3205.96240806279 " , " 56.7641158288039 " , " 794.697621603255 " , " 2943.3245244565 "
, " 7 " , " 8 " , " 1 " , " 3997.8351228543 " , " 45.5205419637562 " , " 637.287587492586 " , " 2360.32439812069 "
, " 7 " , " 8 " , " 1 " , " 4985.30039819931 " , " 36.5040432748646 " , " 511.056605848104 " , " 1892.80224388187 "
, " 7 " , " 8 " , " 1 " , " 6216.66959655454 " , " 29.2734909982876 " , " 409.828873976026 " , " 1517.88471842973 "
, " 7 " , " 8 " , " 1 " , " 7752.18698690351 " , " 23.4751331181135 " , " 328.651863653589 " , " 1217.22912464292 "
, " 7 " , " 8 " , " 1 " , " 9666.97717266868 " , " 18.8252871837318 " , " 263.554020572245 " , " 976.126002119425 "
, " 7 " , " 8 " , " 1 " , " 12054.7205343178 " , " 15.096461253995 " , " 211.35045755593 " , " 782.779472429371 "
, " 7 " , " 8 " , " 1 " , " 15032.2365062944 " , " 12.1062239406536 " , " 169.48713516915 " , " 627.730130256111 "
, " 7 " , " 8 " , " 1 " , " 18745.1989233491 " , " 9.70827902217608 " , " 135.915906310465 " , " 503.392245594315 "
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