AmakhompyuthaImishini

Kanjani ukwenza oscilloscope kusuka ekhadini umsindo

Njalo radio amateur kufanele kube idivayisi, okufana i oscilloscope emzini wakhe laboratory. Yena liyadingeka ukulungisa kanye ukulungiswa of kagesi. Ngaphezu kwalokho, ngaphandle wathi kudivayisi akusho uphathe ekutadisheni izifunda ezintsha kanye nezici zabo. Nokho, izindleko oscilloscope digital futhi analog impela high. Ungase futhi sizame ukuthola kuyisu elisetshenziswa, kodwa amadivayisi angekho kuwo wonke umuntu ephaketheni. Lesi sihloko sigxile kakhulu indlela yokwenza oscilloscope kusuka ekhadini umsindo. Intengo nokuguqulwa enjalo azinakwa, ngoba isisekelo zedivayisi wathi uthatha PC ingxenye. Ukuze sibonise umumo gagasi usebenzisa isofthiwe ekhethekile.

Oscilloscope ikhadi umsindo: emihle nemibi

Izinzuzo idivayisi olucutshungulwayo zihlanganisa izindleko ongaphakeme, yebo, ngaphandle kwe-computer ngokwawo. Manje kahle. Ekuqaleni: kuzoba ezingaphezu kuka ngobunjalo babo. Ububi main, okuyinto libhekene oscilloscope kusuka ekhadini umsindo - lena ukuzwela eliphezulu kakhulu. Usabheka ngisho umsakazo ukuphazamiseka, kuphumele umumo gagasi kungaba zinamaphutha. Ububi yesibili yokuthi esibonakalayo okokufaka ikhadi umsindo iyakwazi ukusekela amplitude isignali ingeqi 2 V Lokhu kusho ukuthi ikhadi kalula kungalimala. Lokhu ukuntula kufanele kubhekwe enkulu ekwakhekeni kwe-adaptha. I oscilloscope we ikhadi umsindo akakwazi ukukala DC voltage.

Indlela yokwenza i-adaptha

Okokuqala kubalulekile acabangele ezingeni okufakwayo ekhadini umsindo, avame akusiyo volts engaphezu kwemibili, futhi kwezinye amabhodi - engaphansi volt. Ngokwemvelo, kuyoba eyanele nesilinganiso lokhu kwawo namandla awo. Lokhu kudinga i-adaptha oluyokwenza ukwandisa imikhawulo amplitude isignali. Software - oscilloscope - has kuvunyelwe ezingeni izilinganiso ezimbili: 12.5 V 250 V Umdwebo wokuhlelwa kwendikimba thuluzi yakhiwa izakhi eziyisithupha kuphela - resistors. R1-R2 ku ukumelana okuzisholo 1.5 Mohm, R3 no-R4 - 75 ohms, R5 R6 - 1,5 kohm. Amandla ukushabalalisa resistors akumele ibe ngaphansi kuka 0.5 watts. Isifunda ine itheku 5 oxhumana nabo (ezimbili - emthonjeni isignali 250, ababili - 12.5 Owesihlanu futhi - jikelele - phambili) kanye ezintathu okukhipha eMhlanganweni ekhishwa exhunywe kwi-umugqa uvo ikhadi umsindo (kwesokunxele neziteshi kwesokudla futhi wabelane).

Thina uqhubekele incazelo umqondo adaptha. Lowo mbhangqwana wokuqala imibono - "umthombo 250" - ixhunywe resistors R1 R2, eminye - ne R3 no-R4; kutheminali okukhipha, ngokulandelana, kwesokunxele kanye neziteshi kwesokudla okokufaka umugqa. Ipheya "umthombo 12.5 V" "igebe" yesibili ixhunyiwe phakathi resistors, okuyile esibulalayo - phakathi R1 R3, kanti eyesibili - phakathi u-R2 no-R4. Futhi ekugcineni, nowokugcina, okukhipha Imininingwane eya isixhumi umugqa-e ikhadi umsindo. Ixhumeke nge iziteshi kwesokunxele nakwesokudla resistors R5 R6, exhunywe emva pair of resistors R3 no-R4. Ukuze kuncishiswe umphumela umsindo kudivayisi, kumelwe ubeke ibhodi adaptha ukuze izindlu metal. Lapha, eqinisweni, wonke oscilloscope. Ikhadi umsindo uthola amasignali engenayo, bese isofthiwe ubonisa umumo gagasi ku qapha ikhompyutha.

Ukubeka up ohlelweni

Ukuze ulungise oscilloscope kusuka ekhadini umsindo, kufanele uya labathaki bamafutha PC bese uvala inzuzo ku-microphone, setha ezingeni ivolumu lingaphansi isilinganiso. I kwaphumela kudivayisi yokulinganisa uyakwazi pick out ngokucacile umumo gagasi kunalokho imvamisa low, futhi ukucacisa imvamisa lophansi.

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