Kapangidwe ka kukula kwa galimoto ndi njira zochepetsera kulekerera

Tsopano kugwiritsa ntchito zamagetsi kwafala kwambirimasikelo a galimotoPonena za kukonza ndi kukonza masikelo/mlatho wolemera wa magalimoto amagetsi, tiyeni tikambirane za izi monga wogulitsa mlatho wolemera:

Sikelo ya galimoto yamagetsi imapangidwa makamaka ndi magawo atatu: selo yonyamula katundu, kapangidwe kake ndi dera. Kulondola kwake ndi kuyambira 1/1500 mpaka 1/10000 kapena kuchepera. Kugwiritsa ntchito dera losinthira la A/D lophatikizana kawiri kumatha kukwaniritsa zofunikira zolondola ndipo kuli ndi ubwino wokhala ndi mphamvu yolimbana ndi zosokoneza komanso mtengo wotsika. Pokhazikitsa malamulo a dziko lonse a metrology, zolakwika za sikelo ya galimoto yamagetsi yokha ndi zolakwika zina zomwe zimagwiritsidwa ntchito ndi nkhani zomwe opanga ndi ogwiritsa ntchito ayenera kusamala nazo.

Choyamba, njira yochepetsera zolakwika pakupanga ndi kupanga weighbridge yamagetsi:

1. Chitsimikizo cha zizindikiro zaukadaulo za loadcell

Ndikofunikira kwambiri kuwonetsetsa kuti sikelo ya magalimoto apakompyuta ndi yabwino posankha ma loadcell okhala ndi zizindikiro zosiyanasiyana zaukadaulo zomwe zimakwaniritsa zofunikira zolondola. Linearity, creep, no-load temperature coefficient ndi sensitivity temperature coefficient ndi zizindikiro zofunika kwambiri za ma loadcell. Pa gulu lililonse la ma loadcell, kuwunika zitsanzo ndi kuyesa kutentha kwambiri komanso kotsika kuyenera kuchitika motsatira kuchuluka kwa zitsanzo zomwe zimafunikira malinga ndi miyezo ya dziko.

2. Kuchuluka kwa kutentha kwa dera la sikelo ya galimoto zamagetsi

Kusanthula ndi kuyesa kwa chiphunzitso kumatsimikizira kuti kutentha koyenera kwa kukana kwa amplifier yolowetsa ndi kukana kwa mayankho ndi zinthu zofunika kwambiri zomwe zimakhudza kutentha koyenera kwa sikelo yamagetsi yagalimoto yamagetsi, ndipo chotsutsa chachitsulo chokhala ndi kutentha koyenera kwa 5 × 10-6 chiyenera kusankhidwa. Mayeso otentha kwambiri ayenera kuchitika pa sikelo iliyonse yamagetsi yagalimoto yopangidwa. Pazinthu zina zomwe zili ndi kutentha kochepa komwe sikuloledwa, zotsutsa zachitsulo zokhala ndi kutentha koyenera kosakwana 25 × 10-6 zingagwiritsidwe ntchito kubwezera. Nthawi yomweyo ndi mayeso otentha kwambiri, chinthucho chinayesedwa kutentha kuti chikhale chokhazikika.

3. Kubwezera kosalunjika kwa sikelo ya galimoto yamagetsi

Muzochitika zabwino, kuchuluka kwa digito kwa sikelo ya galimoto yamagetsi pambuyo pa kusintha kwa analog kupita ku digito ndi kulemera komwe kumayikidwa pa sikelo ya galimoto yamagetsi kuyenera kukhala kolunjika. Mukamayesa kulondola panthawi yopanga, gwiritsani ntchito pulogalamu yamkati ya kompyuta kuti muyesere malo amodzi. Werengerani mtunda pakati pa nambala ndi kulemera molingana ndi mzere wowongoka woyenera ndikusunga mu kukumbukira. Izi sizingathetse cholakwika chosakhala cholunjika chomwe chimapangidwa ndi sensa ndi integrator. Pogwiritsa ntchito kukonza mfundo zambiri, kugwiritsa ntchito mizere yowongoka yambiri kuti muyerekezere curve kumachepetsa bwino cholakwika chosakhala cholunjika popanda kuwonjezera mtengo wa hardware. Mwachitsanzo, sikelo ya galimoto yamagetsi yokhala ndi kulondola kwa 1/3000 imagwiritsa ntchito kuwerengera kwa mfundo zitatu, ndipo sikelo ya galimoto yamagetsi yokhala ndi kulondola kwa 1/5000 imagwiritsa ntchito kuwerengera kwa mfundo zisanu.