Ine pauna maha-upoko hiko tino tika, atamai hoki

Kaituhi: Smartweigh– Taumaha Maha-Upoko

1 Kupu Whakataki I te tere o te whanaketanga o te hangarau mōhiohio hiko me te hangarau mōhiohio hiko o ēnei rā, kua whānuitia te whakamahinga o ngā pauna maha-upoko hiko i roto i ngā ahumahi pāpori me te ōhanga. He tino paingia ngā mahi a te tātai me ētahi atu mahi e ngā kiritaki. Ko te kī o te pauna maha-upoko hiko atamai he mea tito mai i ngā pūmanawa pūnaha matua e rua.——Ko te pūnaha tirotiro me te tukatuka raraunga me te whārangi hangarau taunekeneke tangata-rorohiko he mea tito mai i te pūnaha tikanga tirotiro me te tukatuka raraunga. Ka whakaatuhia ngā hua ine i raro i te mana o te katoa, pērā i te mōhiohio me te tārua. Ko te tuhinga matua e whakaatu ana i te wāhanga tirotiro o te pūmanawa pūnaha i roto i ngā taipitopito, tae atu ki te whakatikatika aunoa o te ara iahiko tuku hiko o te pūoko. Ko te kaupapa hoahoa te whakatikatika pūoko e aro ana me tana mahi waenga-puku rua. 2 Ko te kaupapa hoahoa whānui o te pūnaha he whakawhitiwhiti kōrero. Ko te kī ki te rangahau pūtaiao ko te huarahi ki te whakaoti i te pūnaha atamai pūmanawa pūnaha. Ko te pūnaha aroturuki pauna maha-upoko he mea tito mai i te whakakaha whakahaere pūoko, te ara iahiko tuku hiko kohikohi raraunga (hurihuri ana/matihiko), ngā wāhanga whakahaere waenga, te ara iahiko tuku hiko urupare, te utu o waho me te tono tuku hiko whakawhiti.

Ko te mahi a te ara iahiko tuku hiko he whakakapi i te tau uara taumaha kupenga ki te tau ngaohiko mahi paku rerekē e ai ki te taupoki tuku ine taumaha ātete, me te whakanui ake ki ngā raraunga ngaohiko mahi e whakaaetia ana e te maramara tukatuka tahuritanga anaro/matihiko e tika ana. Hei tohu me te whakahaere i te tahuritanga A/D, ko te hapa pūnaha o te papa taputapu te take nui o tēnei wāhanga, nō reira ko te kaupapa hoahoa o tēnei wāhanga e pā ana ki te tika o te pūmanawa pūnaha katoa. Kāore te wae tukatuka matua e whai kawenga mō te whakahaere me te whakahaere o te pūmanawa pūnaha katoa, engari e whakahaere ana i te Tikanga tukatuka raraunga, te whakatikatika aunoa, te whakawhiti aunoa o te tukanga IT, te whakakapinga taputapu tuku whare urupare. Ko te ara iahiko tuku hiko e whakahaere ana i te tohutohu me te tuku raraunga i waenganui o te PTM o te pūmanawa pūnaha whārangi. Ka whakaratohia e te pūmanawa pūnaha tuku hiko whakawhiti he pūnaha tuku hiko me te tohatoha pai mō te whakahaere maeneene o te pūmanawa pūnaha, ā, ka whakaratohia he taumata teitei o te tuku hiko piriti tuku hiko. 3 Te whanaketanga taputapu Ko te mea nui ki te whanaketanga taputapu o te pūnaha aroturuki tauine hiko e toru ngā wāhanga: te whakakaha whakahaere, te ara iahiko tuku hiko whakawhiti anaro/matihiko, te ātete taputapu mīhini CNC. Ko te maramara tukatuka whakakaha whakahaere whakauru AD525C e whakamahia ana e whakaatuhia ana i te Pikitia 2. Me iti iho te ngaohiko mahi nekehanga pāmahana putanga i te 25. Me iti iho te ngaohiko mahi nekehanga pāmahana i te ōwehenga whakakore noa CMR, arā, tata ki te 90dB ina nui ake te whiwhinga whānui i tērā o te pūnaha motumotu nui. 0.003^ (ina G=l). Hei whakakaha oro, kei roto i te AD524 ngā ātete tino tika mō te tukanga SI momo-pine tt1WG=l, 10, 100 me te 1000: kia nui ake te pito JWRG2 o te ngongo me te whakataurite. I muri i te honotanga o te pine whiriwhiri whakarea i mua (i tēnei wā, kāore te RG1 i honoa ki te ihu), ka taea te whakaoti i te mahi whakanui o te whakanui whakataurite. Haunga tēnei momo tikanga taurite ā-roto, ina ko te uara whiwhinga kua tohua mai i te 1 ki te 100.

Ina haere tonu te whakawhiti, he huarahi anō tā AD524 hei whakahaere i te uara whakanui. Ka whakamahia he rheostat reti RG hei hono i te ngongo 3 (RG2) o te maramara tukatuka AD524 ki te pine 16 (RGD), ā, ko te uara ātete e rite ana ki te G RG ko te ara iahiko tuku hiko whakawhiti mamati RG-40K/(Gl)3.2. I roto i tēnei kaupapa hoahoa, ka tīpakohia te kaitahuri S! maha-moka 14 MAX194 i hangaia e MAXIM. Kei te maramara tukatuka he DACSPWM momo-pūnga, he kaipupuri waha tauira, he 10 ngā DAC whakatikatika, he whakawhitiwhiti raupapa me te mana whakahaere ehara i te mea ko ngā āhuatanga o te mahi tere-teitei, te tino tika, te kai hiko, me ētahi atu, engari ko tana ara iahiko tuku hiko whakatikatika ā-roto hoki ka whakatikatika i te raina me te rerekētanga taurite, ka taea te whakarite me te kore he whakatikatika o waho. Kia mau tonu ngā mahi pumau 18 katoa i roto i te awhe pāmahana e whakaaetia ana. Mā ngā āhuatanga o te whakawhitiwhiti raupapa ka hono tonu te IB ki te nuinga o ngā papa whakahaere tohu, ka tino māmā ake te kaupapa ara iahiko pūmanawa pūnaha. Hei tāpiritanga, ka whakatauira i te pūhiko whakawhiti anaro me te whakawhiti raraunga. Ka tino whakaitihia hoki e te hanganga o te wehenga pūhiko te kino o te hononga raraunga-haruru. Ko ōna āhuatanga matua ko: ko te taumira mata he 14 moka: ko te take o te rerekētanga o te pūnaha motumotu whakauru he 0.33%, ā, ko te ōwehenga o te tohu raraunga ki te haruru me ngā anga ngaro he 82dB; 9. Ina ko te ngaohiko mahi tohutoro he +9V, ina huri te ngaohiko mahi whakauru mai i te 0 ki te 9V, i te 5 rānei ki te +9V, ka huri te rōrahi raraunga putanga mai i te OOOOH ki te 3FFFH. Ka whakamahia te rere kua whakaritea hei whakahaere i te huringa o tōna uara ātete. Ka tīpakohia e tēnei kaupapa hoahoa te ātete taputapu mīhini CNC kore-hurihuri X9241 i hangaia e Xicor Corporation, tae atu ki ngā rarangi ātete e 4, kei ia rarangi he 63 ngā kōwae ātete. I waenganui o ia kōwae me ngā pūnga e 2, kei reira ngā pūwāhi pato ka taea te tirotiro e te kōwae tōia. Ko te tūranga o te waeine tōia i roto i te rarangi ka whakahaerehia e te kiritaki e ai ki te putanga pahi raupapa e rua-waea, ā, ko te wāhitau taipitopito o te wāhanga tinana ko te kī A0 -A3 i te take whakamutunga hei tautuhi——Ka whakataurite a X9241 i te tātari rere raraunga o te whakawhitiwhiti raupapa ki te āhuatanga o te taunga whakauru wāhitau taipitopito. Ina angitu katoa ngā moka wāhitau taipitopito e 4, ka whakautu te rōpū me te whakautu hei tohu kua tīpakohia. Ā, he 4 ngā rarangi ātete o ia X9241, nō reira ka taea e ngā raina I/O e rua o te CPU te whakahaere i te 64 ngā rarangi ātete katoa, ā, ka honoa ia rarangi ātete ki te rēhita taunga tōia (WCR) me ngā wāhitau rēhita 8-moka e whā, ka taea katoa te utaina, te pānui rānei e te kiritaki.

Ka whakahaerehia e te ihirangi o te mahara tatau pito tō (WCR) te moka JL o te pito tō i roto i te rarangi ātete. I roto i te hanganga whakahau o X9241, hei tāpiri atu ki te mahara āheinga pānui-tuhi me te whakahau ki te whakawhiti raraunga i waenga i ia mahara, kei reira anō he whakahau e Tukua te pūrua tōia (WCR) kia iS/tangohia he whakahau wae iti rawa INC-WIPER, i ia wā ka whakahaerehia he INC-WIPER, arā, ka nekehia e te pūrua tōia tētahi i roto i te 63 ngā kōwae ātete, e whakaatu ana i te kaupapa hoahoa o te rere o te kaupapa whakatikatika kore. He whai hua nui, 4 ngā mātāpono pūnaha 1) Tautuhi Anō "I muri i te whakakāhia o te pūmanawa pūnaha, ka mahia tuatahitia te otinga tautuhi anō. Mena kāore he whakahau pūnaha mai i te whārangi hangarau taunekeneke a te papa whakahaere-tangata-rorohiko, ka utaina tuatahitia e te pūmanawa pūnaha te kupu tūnga ki roto i te EEPROM i ia wā ka tīmata te whakatikatika, ā, ka mahi i te tautuhi. Whakahohe aunoa i ngā tawhā matua pēnei i te tautuhinga taketake, te tikanga hongere haumaru rānei, te uara turanga, me te huinga whakanui i mua i te tūnga o mua. Kātahi ka hoatu e te PTM te whakahau ki te huri i te pana anaro maha-hongere AD7502 ki te hongere haumaru tuawhā, ā, ko te pūrua whakauru ① me ② o te whakakaha taputapu me te taputapu AD524. ka poto te ara iahiko, ā, ka whakahaerehia e te PTM te ātete o te taputapu mīhini CNC e ai ki te pūnaha kua whakaritea i mua. Ka whakarerekētia te uara ātete o te ātete 10K i roto i te taputapu X9241, ā, ka mahia te whakatikatika aunoa i te kore o te whakanui taputapu taputapu uara whakanui kaiwhakahaere ka taea te whakarite. 2) Whakatikatika pūoko” Ina whakatau te kaiwhakahaere kāore he kawenga o te pauna maha-upoko hiko, ka whiwhihia te whakahau whakatikatika kore o te pūoko e ai ki te whārangi hangarau taunekeneke tangata-rorohiko, ā, ka tangohia e te PTM ngā mōhiohio e tukuna ana e te PTM o te whārangi hangarau taunekeneke tangata-rorohiko e ai ki te whakawhitiwhiti raupapa. , wehewehe i te tau rōpū o te pūoko me whakatikatika, whakatikatika i te ātete taputapu mīhini CNC X9241 e rite ana, mahi i te whakatikatika tuatahi me te whakatikatika pai, ā, ka mahi te ara iahiko hiko i te mahi o ia rā o te whakatikatika kore aunoa o te pūoko. 3) Te whakarerekētanga kore o te pūmanawa pūnaha, Whai muri i te whakarerekētanga a te PTM i te whakakaha uara whakanui me te pūoko (inā hiahiatia) o te kaiwhakahaere ka taea te whakarite, ka kohia e te PTM te uara toenga ngaohiko mahi e toe ana o te pūwāhi kore e ai ki te kaitahuri A/D MAX194 ka rongoa ki roto i te EEPROM * tatari kia pai katoa ngā mea. Ina paunatia te tamaiti, tangohia anō tēnei uara. "Mēnā ka tino rerekē te taiao, ā, kāore te PTM e whiwhi i te whakahau whakatikatika kore, ka taea e te kiritaki te tuku i te whakahau whakatikatika kore i ngā wā katoa, i ngā wāhi katoa e ai ki te whārangi taunekeneke o te mīhini, kia taea ai te whakataurite anō i te pauna maha-upoko hiko. Hei tāpiri, mō te hapa raraunga kore i hangaia e te A/D, ka whakatika aunoa a MAX194 i te pūwāhi kuware o te A/D i roto i te 50ms taketake o ia whakakā. Ka taea hoki e te PTM te whakamahi i te kaitahuri A/D MAX194 hei whakahaere i te mahi tuturu o te whakatikatika. "I te nuinga o te wā, he mahi whakatikatika kore aunoa me te wā-tūturu o te pūmanawa pūnaha pai rawa atu tēnei pauna maha-upoko hiko" hei whakarite i tana mahi pauna tino tika. #4 ) Mahi aro-pūoko. He mahi aro-pūoko ahurei tō tēnei pūmanawa pūnaha, e mea ana kia tino noa te whānuitanga o te pūmanawa pūnaha mai i te torutoru kirokaramu ki te tekau tāne. Ko te hangarau matua ko te whakahaere ka taea te whakarite. Ina whiriwhiria e te kiritaki tētahi momo pūoko i roto i te whānuitanga ine e ai ki tana whāinga tono, ina whakakapia rānei te pūoko nā ngā hapa noa (ngā huringa rānei i roto i te tukanga whakaputa), ko te Ko ngā tohunga hangarau o ngā kaupapa hangarau (kiritaki rānei) me hono noa i te pūoko ki te pūmanawa pūnaha, e ai ki te whārangi hangarau taunekeneke tangata-rorohiko, patohia te whakahau me te whānuitanga o te wāhi, ka whakanoho i te wāhanga KG paerewa, te wāhanga tana rānei (waehere ngaro) ki roto i te pereti pauna pūmanawa pūnaha, kātahi ka pānuihia e te tauira A/D te uara o te mV/kg, mV/t rānei hei uara turanga, ka rongoatia ki roto i te EEPROM o te pūmanawa pūnaha hei whakamahi i te wā e paunatia ana.

Hei tāpiritanga, ka tatau te PTM, ka whakamārama hoki i te uara whakanui o te uara whakanui kaiwhakahaere ka taea te whakarite o te whakakaha taputapu me te taputapu AD524, e ai ki te uara turanga me ngā tawhā matua o te awhe ine e tukuna ana mai i te pūmanawa pūnaha hangarau taunekeneke tangata-rorohiko. Ka whakahaerehia e te PTM te ātete 2K i roto i te pūkaha matihiko X9241. Ka mahi te whakakaha uara whakanui kaiwhakahaere ka taea te whakarite i raro i te paerewa uara whakanui hou, ā, ka whakahaere i te whakatikatika me te whakatikatika o te awhe ine o te tuku. Haunga te uara taumaha kupenga o te mea i paunatia, he raupapa mahi anō hoki kei roto i ngā mōhiohio pēnei i te tautuhinga hongere haumaru, te tautuhinga uara turanga, te tautuhinga umanga, te tautuhinga uara whakanui, te whakatikatika aunoa i te kore me te tiaki i te āhua tautuhinga taunoa. 5.1 Hoahoa hōtaka matua Ka whakahohehia ngā mahi i roto i te pūnaha aroturuki pauna maha-upoko hiko e te kiritaki e ai ki te papa whakahaere i roto i te pūmanawa pūnaha hangarau taunekeneke tangata-rorohiko. Nō reira, kua oati te pūnaha aroturuki me te pūmanawa pūnaha taunekeneke i ngā kawa e whai ake nei; taunekeneke tangata-rorohiko Kua whakaritea ia mahi o te pūmanawa pūnaha hangarau kia rite ki te paita, e kiia nei ko te kupu whakahau. Ina whakahaerehia e te papa whakahaere tētahi mahi tūturu o tētahi mahi, ka panaia te kupu whakahau whanaunga mai i te pūmanawa pūnaha hangarau taunekeneke tangata-rorohiko, ā, ka whakaaetia e te pūnaha aroturuki mā te whakamutu atanga raupapa (nā te mea me whakatinana e te pūnaha kaupapa here tirotiro te pauna me te pana pauna. I muri i te whakahaere tūturu o te hua, ka taea anake te whakaae mā te tikanga whakamutu engari kāore mā te tikanga uiui), i muri i te whakahaere i te tautuhi tohutohu 'haere ki te kaiwhakahuihui tūemi ratonga whanaunga'.

Hei tāpiritanga, ka utaina hoki te kupu whakahau ki roto i te EEPROM, ā, ka noho hei āhua hei utaina i muri i te whakatikatika. Whakahōuhia te EEPROM i roto i te rere o te kaupapa, ka utaina anō te kupu tūnga EEPROM i muri i te hokinga ki te tīmatanga o te rere o te kaupapa motuhake. Whai muri i ia tīmatanga pūmanawa pūnaha me te tautuhi anō i te tawhā matua, ka tohaina te hōtaka whakatikatika-kore aunoa o te whakakaha kotahi, ā, me peke te kaupapa pūtake i waho o te pauna huringa ka tīmata mai i te tīmatanga i muri i ia wā ka mutu te tauranga raina. Ko te wāhi tatari o te rere o te kaupapa whakamutu ko te hoki ki te wāhi taketake o te horoi, nō reira ka whakatakotoria he tohu haki tāpiri 7QH hei wehewehe mēnā kua whakahohea te aukati whakamutu, kāore rānei. "Mēnā ka puta, ka peke atu i te pūnaha huringa pauna, ka tautuhi anō i ngā tawhā matua." 5.2 Hoahoa hōtaka-iti-5. Ka whakaritea te whakakaha XI ki te haurua o te kaiwhakaemi. Tuatahi, ka tīpakohia e te PTM te hongere tuawhā o te whakatuwheratanga pokepokea maha-hongere. Ko te mutunga, ka potohia ngā pito whakauru e rua o te maramara whakakaha, ā, ka kore te tohu raraunga ngaohiko whakauru, ā, ka mahia te whakanui. Me whakarite te uara putanga o te mita——ngaohiko piro AC. Whakanohoia te pane tō o X9241 ki runga i te pito pumau o te whakakaha ka whakaputa i te ngaohiko piro pai, arā, tukuna te OOH^ ki te pito tō WCRC ritenga atu (mahara tatau) kātahi ka whakahohe i te tahuritanga A/D. Ko te rere o te hōtaka ko te tāpiri me te tango i ngā mōhiohio raraunga kua whiwhi (neke atu i te 1FFFH) me te 1FFFH (ko te 1FFFH te nui o ngā raraunga putanga ina whakaata te ngaohiko mahi o ADCMAX194 i te tere rere whakauru o te kore, ā, ka whakatau mēnā he tau pai te rerekētanga, mēnā he tau pai. Ka whakahokia te tau WCR me te KA/D me te mahi tūturu o te tāpiri me te tangohanga, kia kore rā anō te hua o te rerekētanga, kia mutu rānei ina huri mai i te pai ki te kino. 5-2.2 Te rere o te hōtaka Pūoko Sm Te hoahoa hōtaka o te whakatikatika kore pūoko me te whakakaha He rite tonu te ariā o te whakatikatika kore. Kei runga i te rerekētanga; kāore e hiahiatia e te CPU te whakatakoto i te tau ki te WCR i te tuatahi, engari ka taea tonu te hurihanga A/D hei wehewehe i te putanga o te rōrahi raraunga me te rahi o te 1FFFH. Mena ka nui ake, whakauruhia te WCR ka tāpirihia mārire te 1 ki te kaiwhakaemi. Kātahi ka whakauruhia te WCR ka whakaitihia mārire te kaiwhakaemi mā te 1.

I konei, ka āta whakarerekētia te uara WCR i roto i tētahi o ngā kaiwhakaemi e rua tae noa ki te mutunga o te putanga A/D me te 1FFFH i roto i ngā rā tata nei. 5.2.3 Te rere o te kaupapa tautuhinga uara turanga Tīpakohia te tautuhinga uara turanga i runga i te papa whakahaere o te pūmanawa pūnaha hangarau tauwhitiwhiti ka pēhi me te pupuri. I tēnei wā, ka huri pea te PTM o te pūnaha aroturuki ki te kaiwhakaemi otinga whakamutu nā te mea kua whiwhi i te tohu raraunga o te whakawhitiwhiti tono, ā, ka tautuhi i te whakaae i roto i te kaiwhakaemi otinga whakamutu. ki te kupu whakahau pūnaha, kātahi ka whakauru i te kaiwhakaemi tautuhinga uara turanga.

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