Ko te miihini whakauru miihini whakauru whakamatautau, ko te mea nui ko te ine i nga tohu whakamatautau matua.
Ko te tikanga whanui ko te whakamahi i nga taputapu whakamatautau i nga ngaohiko waewae katoa me te titi ki te aukati whenua, te whakaurunga me te ngaohiko whakaputa, te kohi hiko me te ngaru whakauru/putanga, me nga hua whakamatautau ka rereke ki nga tawhā arahiko whakauru noa, ka taea te whakatau i te ara iahiko whakauru kia whakamatauria noa.
i roto i te
mīhini tākai, ko nga microprocessors iahiko whakauru e whakamahia nuitia ana, he kiriata matotoru iahiko whakauru me te whakawhiti hiko whakakaha IC whakahaere.
Kia ata tirotirohia enei korero.
mīhini whakakī whakamatautau iahiko whakauru i roto i te matua o nga waahi whakamatautau iahiko whakauru.
1.
Ko te matua ki te waahi whakamatautau ara iahiko whakauru microprocessor
ko te matua ki te microprocessor integrated circuit test point ko te nuinga o te taha mana VDD power supply, RESET, RESET, karaihe IN wiri tohu whakauru, Xor tioata wiri tohu putanga mutunga o te whakauru, te whakaputa, me etahi atu waahanga.
te whakamatautau ipurangi ine te tohu matua o te parenga me te uara ngaohiko me te tikanga ka taea te whakatau he noa te ara iahiko whakauru;
2.
Ko te matua o te waahi whakamatautau IC hiko whakawhiti
Ko te matua ki te whakawhiti hiko hiko IC tohu whakamatautau ko te nuinga o te mutunga o te whakaurunga kitenga Vc, te ngaohiko, te urunga kitenga o naianei, te whakaputanga pupuhi, etc.
I whakamahia te whakamatautau ipurangi ki te ine i te ngaohiko iahiko whakauru me te parenga o ia titi, ka whakatauritehia ki nga raraunga i runga i te tikanga, penei i te rereketanga nui, me whakamatau ano i te waahanga e pa ana, ka whakatauhia te waahanga i raro i te ahua o te tikanga, ka taea te whakatau i te kua pakaru te ara iahiko whakauru.
I roto i te whakakā integrated iahiko whakakā ngongo ko te wāhanga matua, te hanga-i roto i te matotoru kiriata integrated iahiko o te mana nui ngongo whakakā i te kore e pai ki te ruarua whakakā ngongo ka taea te ine i te whakawhiti ngongo c, b, e rawa i waenganui i mua me te whakamuri ātete. ki te whakawa.
3.
Ko te tohu whakamatautau IC amplifier mahi matua
Ko te matua o te tohu whakamatautau IC amplifier mahi ko te whakauru me te whakaputa.
He teitei ake tenei waahi o te uara ngaohiko pateko.
whakamātautau, te multimeter ki te ngaohiko dc, te ine i te uara ngaohiko whakaputa i waenga i te mutunga me te mutunga tuku hiko kino.
Ma nga ringaringa whakarewa, ka paopao ki nga pito whakauru e rua o te whakakaha whakahaere (
Hono atu ki te tohu tami)
, me te maataki i te ahuatanga o te karaka oscillation, te tikanga, ka nui ake te oscillation o te tohu multimeter, penei i te kore e nekehia te tohu, katahi ka pakaru te whakakaha whakahaere.
4.
Paihikara hiko te whakamatautau ira taiawhio whakauru motuhake.
i roto i te mīhini tākai, te whakamahia nuitia 555 wa turanga integrated iahiko TL494 iahiko me te ara iahiko.
Me titiro motuhake ki nga kaupapa matua o nga tikanga whakamatautau motuhake (
1)
Te whakatau i te ara iahiko whakauru T494
miihini whakakao miihini whakahiato whakamatautau mo te whakatau i te T494 whakaurunga i roto i nga waahanga e whai ake nei.
1)
Whakaritehia te taputapu.
Te whakamatautau i nga iahiko whakauru ki te whiriwhiri i etahi atu mahi, penei i te mita maha matihiko, nga tauira me te momo mahi a MY68 me te momo miihini miihini MS820.
ka kitea e ratou te auau o te 150 KHZ me te 200 KHZ.
Me te oscilloscope, te awhiowhio waea awhiowhio, etc.
2)
Te ine auau oscillation.
Inenga hiko tuatahi ki te 200 KHZ, rangahau tuatahi T494 tere oscillation (
I runga i etahi atu arahiko whakauru penei i raro i te 200 hz, ka taea te whakatika i te taputapu)
, kia tika ai.
T494 oscillation i roto i te 5, me te 6 putu, no reira ko nga pene multimeter me enei waewae e rua, ka taea te whakatau i te ngaru kani.
Kaitono me te ara iahiko mana o te auau oscillation o 20 ~ 80 kh, ko nga hua whakatau he o etahi uara, he noa te oscillation iahiko whakauru, he tika te uara puritanga.
Mena kaore he tohu o te oscillation, me tirohia te waahi whakapiri me nga pene me te waea waea, aha atu.
Mēnā he iti ake te whakamātautau anō i te inenga tau o te ara iahiko whakauru he raru.
ki te kore e whakaaetia te auau, te korero ki te Rr, ki te Cr ranei, nga ahuatanga whakaata e tika ana te whakarereke, te whakakapi ranei.
3)
Te ine i te ōwehenga mahi.
Kua rite ki te oscilloscope, ka T494 putanga titi 9, 10, hono i te atanga whakauru o te oscillograph, ka anga whakamua ki te 9, 10 waewae me te kawenga whakatau.
I konei he mea nui kia mohio kaore he kawenga kua tohua, kaore i te tika te inenga o te utu, ka rereke mai i te uara o te hoahoa taketake.
Tirohia te oscilloscope 9, 10 putu o te ngaru whakaputa, i te wa ano whakatikahia te owehenga mahi: hei whakahaere i te huānga, whakatikahia te kakau tere, ma te 0 miro;
Te rihi, whakatikahia te uara parenga mai i te 0 ki te 6 putu (
Ko te kaha C, i te wa ano ka whakatika)
.
I tenei wa mai i te oscilloscope me kite i nga huringa tauwehenga mahi mai i te kore ki te kotahi rau ōrau.
he mea noa, he kore ranei e pa ana ki te miihini ka taea te mahi noa, no reira he mea nui, kei te tumanako ahau ka awhina tenei tuhinga ki a koe.
I nga wa katoa ka ara ake te patai mo te miihini pauna, ka puta mai te kupu ''.
Mo etahi atu tohutohu me nga rautaki mo nga otinga arowhai whaihua, tirohia to whiringa ki te Miihini Weighing And
Packing Machine.
Smart Weigh
Packaging Machinery Co., Ltd he pakari, he ngawari ki te whakahaere, he mihini mahi hoa e tuku ana i te pauna multihead kounga teitei mo nga kaupapa miihini pauna.
