Kaituhi: Smartweigh–Taumaha Utuamaha
Ko te whakaata mamati multihead weigher i hoahoatia i roto i tenei pepa he taputapu whakaatu mana taumaha e pa ana ki te pukoro kaha riaka aatete me te hoahoa o te rorohiko moroiti maramara kotahi hei ki te whakahaere. Ko te awhe rapunga he 0-10kg, me te tika o te ine±Ko te 2g, ko te mata o te karaihe karaihe wai e whakaatu ana i nga korero o nga raraunga inenga tika, i tua atu, ka taea te tuku i nga korero o nga raraunga ine tika ki te rorohiko hiko mo nga korero whakaatu i runga i te tauranga raupapa. Ko te punaha punaha nga ahuatanga o te tino tika, nga ahuatanga pumau me te mahi ngawari. Ko te hoahoa anga o te kaupapa hoahoa pauna pauna maha e whakaatuhia ana i te Whakaahua 1 i raro nei: 1. Ko te maapono ara iahiko whirihoranga taputapu 1.1. Te parenga pūoko taumaha Ko te pūoko taumaha taumaha he maha nga waahanga matua penei i nga ine riaka parenga, polyurethane elastomers me nga hiko tirotiro hiko. hanga.
Ko te polyurethane elastomer ka paheke te ahua i raro i te kaha o waho, na te ine riaka aukati e piri ana ki tona mata ka paheke ano. I muri i te ahua o te ine riaka parenga, ka huri tona uara parenga (whakaroha, heke iho ranei), katahi ka tika te inenga Ka huri te ara iahiko hiko i tenei parenga hei tohu hiko (ngaohiko mahi, naianei ranei), ka oti te katoa o te mahi huri. te kaha o waho ki te tohu hiko. Tirohia te ara iahiko tuku hiko e whakaatuhia ana i te Whakaahua 2, ka huri i te parenga o te ine riaka parenga hei whakaputanga ngaohiko mahi. Na te mea he maha nga painga o te piriti Wheatstone, penei i te kaha ki te pehi i te kino o te huringa o te pāmahana, ki te pehi i te awe o te kaha o te taha, me te ngawari ki te whakatutuki i te raru utu o te pukoro pauna, kua whai hua nui te piriti Wheatstone te pūoko pauna. whakamahi ao.
Ko te pūoko pauna e wha nga rarangi putanga katoa, a ko te aukati putanga ko te tikanga 350Ω, 480Ω, 700Ω, 1000Ω. Ko te mutunga o te whakaurunga e kawe ana i etahi utu mo te pāmahana me te tairongo, a ko te parenga mutunga whakauru ka teitei ake i te mutunga putanga. 20 ~ 100Ω, no reira Whakamahia he inemita matihiko hei ine i te uara parenga hei tautuhi i nga pito putanga. 1.2. Ko te tohu raraunga whakaputanga o te pukoro taumahatanga momo riaka whakakaha e kore e kaha (mV, μV taumahamaha ranei), a he maha nga wa e haruru ana. Mo taua tohu raraunga, ko te mahi tuatahi i roto i te otinga ara iahiko tuku hiko ko te tikanga ko te kowhiri i tetahi whakakaha taputapu hei whakanui tuatahi i te tohu raraunga iti.
Ko te ara iahiko whakakaha hiko hiko he kaha ake te kaha ki te aukati aratau noa atu i te ara iahiko whakakaha tohu rereke. Ko te kaupapa tino nui o te whakanui ake ehara i te uara whiwhi, engari ko te whakapai ake i te pumau tonu o te iahiko hiko. I roto i tenei kaupapa hoahoa, ka tangohia e te whakakaha taputapu te hanganga o te OP07 e toru nga whakakaha whakahaere.
3 e whakaatuhia ana i te Whakaahua. Ina R1=R2, R3=R4, Rf=R5, ko te uara whiwhi o te iahiko hiko hiko ko: G=(1+2R1/RG1) (Rf/R3). Ka taea te kite mai i te tātai tātai ka taea te whakatika i te uara whiwhi o te hiko hiko hiko ma te huri i te uara parenga o RG1.
1. 3. A/D hurihanga hiko hiko iahiko A/D converter tīpako icHX711 integrated tauine-motuhake hiko, i te mea he 24-bit A/D converter integrated ic i hangaia mo nga unahi hiko tino tika. Ka whakatauritea ki etahi atu IC whakauru o te momo ano, ka whakauruhia e te IC whakauru nga ara iahiko peripheral e tika ana mo etahi atu IC whakauru o te momo momo, tae atu ki te tuku hiko kua whakaritea, he oscillator karaka i runga i te maramara, me nga mea pera. Whakauruhia te whakawhiti ki te whiriwhiri i te hongere haumaru A, i te hongere haumaru B ranei i te hiahia, ka hono te whakakaha o roto o te hongere haruru haruru i waenganui i nga mea e rua.
Ko te uara whiwhi o te kaiwhakahaere hotaka o te hongere haumaru A he 128, 64 ranei, a, ko te tepe nama katoa e pa ana ki nga tohu rereke tohu whakaurunga uara kaha kaha tiwerawera.±20m.
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