]Igwe nkwakọ ngwaahịa jikọtara ule sekit, isi kwesịrị ịdị na-atụ isi ihe nlele.
General usoro bụ iji ngwá ule ọ bụla voltaji ụkwụ na pin ka ala nguzogide, ntinye na mmepụta voltaji, ike oriri na ntinye / mmepụta waveform, na ule pụta iche na nkịtị integrated sekit parameters, nwere ike ikpe na integrated circuit a ga-anwale bụ. nkịtị.
n'ime
igwe nkwakọ ngwaahịa, ihe ndị a na-ejikarị ejikọta microprocessors circuit, oké film integrated circuit na ịgbanwee ike ọkọnọ arụmọrụ amplifier IC.
Ka anyị nyochaa nke ọma banyere ihe ndị a.
igwe nkwakọ ngwaahịa Nnwale sekit agbakwunyere na igodo nke ihe nlele sekit agbakwunyere.
1.
Igodo nke microprocessor agbakwunyere ebe ule sekit
isi ihe dị na microprocessor integrated circuit test point is tumadi VDD ike ọkọnọ akụkụ, RESET, RESET, crystal IN vibration signal input, Xor crystal vibration signal end of input, output, and other circuits.
online ule tụọ isi ihe nke iguzogide na voltaji uru na nkịtị nwere ike ikpe na integrated circuit bụ nkịtị;
2.
Igodo nke ebe nlele IC na-agbanwe ọkụ
isi ihe na-eme ka ọkụ ọkụ IC na-agbanwe agbanwe bụ njedebe ntinye nchọpụta Vc, voltaji, ntinye nchọpụta ugbu a, mmepụta pulse, wdg.
online ule e ji tụọ Integrated sekit voltaji na iguzogide nke ọ bụla ntụtụ, na mgbe ahụ tụnyere data na nkịtị, dị ka nnukwu ọdịiche, kwesịkwara anwale metụtara akụrụngwa, akụrụngwa kpebisiri ike n'okpuru ọnọdụ nke nkịtị, nwere ike ikpe na sekit agbakwunyere emebiela.
Na mgba ọkụ Integrated sekit mgba ọkụ tube bụ isi akụrụngwa, wuru na-na oké film integrated sekit nke nnukwu ike mgba ọkụ tube mgbe ọ na-adịghị mma na-enwe obi abụọ ịgbanwee tube nwere ike tụrụ site ịmafe tube c, b, e nnọọ n'etiti na-aga n'ihu na azu-eguzogide. ikpe ikpe.
3.
Isi ihe na-arụ ọrụ amplifier IC ule point
igodo nke ebe nyocha IC na-arụ ọrụ bụ ntinye na mmepụta.
Ebe a nke uru voltaji static dị elu.
ule, multimeter na voltaji dc, na-atụle uru voltaji mmepụta n'etiti njedebe na njedebe na-adịghị mma.
Site na tweezers metal aka, n'aka nke ya, na-akụtu njedebe ntinye abụọ nke ihe nrịbawanye arụmọrụ (
Soro mgbama mkpọmkpọ ebe)
, ma na-ekiri ọnọdụ oscillation elekere, nkịtị, multimeter pointer ga-enwe nnukwu oscillation, dị ka pointer adịghị akpali, mgbe ahụ, arụ ọrụ amplifier emebiwo.
4.
Nnwale ihe nrụnye igwe eletrik kpọmkwem.
n'ime igwe nkwakọ ngwaahịa, ihe a na-ejikarị 555 oge agbakwunyere sekit TL494 sekit na sekit.
Ka anyị leba anya na isi ihe nke ụzọ nnwale akọwapụtara (
1)
Mkpebi nke agbakwunyere sekit T494
igwe nkwakọ ngwaahịa agbakwunyere ule sekit maka mkpebi siri ike nke T494 agbakwunyere na usoro dị ka ndị a.
1)
Kwadebe ngwá ọrụ.
Nnwale nke sekit agbakwunyere iji họrọ ọrụ ndị ọzọ, dị ka multimeter dijitalụ, ụdị nwere ụdị MY68 bara uru na ụdị multimeter dijitalụ ụdị MS820.
ha nwere ike ịchọpụta ugboro nke 150 KHZ na 200 KHZ.
Ọ dịkwa mkpa oscilloscope, ikuku ikuku na-eguzogide waya, wdg.
2)
Nleta ugboro oscillation.
Mkpọsa multimeter nke mbụ ruo 200 KHZ, nyocha mbido mbụ T494 oscillation ọnụego (
Na sekit ndị ọzọ agbakwunyere dị ka n'okpuru 200 Hz, nwere ike ịhazigharị ngwa ahụ)
, iji mee nke ọma.
T494 oscillation na 5, na 6 ụkwụ, ya mere multimeter pensụl na ndị a ụkwụ abụọ, ha nwere ike ikpebi sawtooth ife.
Chaja na njikwa sekit nke oscillation ugboro nke 20 ~ 80 kh, mkpebi mkpebi bụ nke ụfọdụ uru, ihe jikọrọ sekit oscillation bụ nkịtị, iguzogide capacitance uru ziri ezi.
ọ bụrụ na enweghị ihe ịrịba ama nke oscillation, ga-elele ebe kọntaktị na pensụl na, wiring, wdg.
Ọ bụrụ na nnwale ka dị obere karịa ọnụọgụ ọnụọgụ nke sekit agbakwunyere nwere nsogbu.
ọ bụrụ na anabataghị ugboro ugboro, na-agwa Rr ma ọ bụ Cr, visual ọnọdụ kwesịrị ekwesị mgbanwe ma ọ bụ nnọchi.
3)
Na-atụ oke ọrụ.
Njikere maka oscilloscope, T494 ga-arụpụta pin 9, 10, jikọọ interface ntinye nke oscillograph, wee gaa n'ihu n'ụkwụ 9, 10 na ibu akwadoro.
N'ebe a, ọ dị mkpa iburu n'obi na ọ dịghị ibu e gosiri, ọrụ ruru eru abụghị ihe ziri ezi, na-esi na uru nke nhazi mbụ ahụ pụta.
Lelee oscilloscope 9, 10 ụkwụ nke mmepụta waveform, n'otu oge ahụ dozie oke ọrụ: iji chịkwaa mmewere, mezie njikwa ọsọ ọsọ, site na 0 tụgharịa;
Chaja, dozie uru nguzogide site na 0 ruo 6 ụkwụ (
The capacitance C, n'otu oge ahụ gbanwee)
.
N'oge a site na oscilloscope kwesịrị ịhụ oke ọrụ na-agbanwe site na efu ruo otu narị pasent.
mbukota igwe integrated circuit bụ nkịtị ma ọ bụ na-metụtara igwe nwere ike nkịtị ọrụ, ya mere ọ dị mkpa, M na-atụ anya na isiokwu a nkwakọ igwe integrated circuit ule na-enyere gị aka.
Mgbe ọ bụla a jụrụ ajụjụ maka igwe na-ebu ihe, mmadụ na-abịakwute okwu ahụ ''.
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Packing Machine.
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