Sehlopha sa mocheso ho dimithara tsa metsi tsa ultrasonic ke paramethara ya bohlokwa e lekanyang bokgoni ba tsona ba ho ikamahanya le mocheso o mahareng le mocheso o potolohileng, e hlalosang mefuta ya mocheso bakeng sa tshebetso e tlwaelehileng le netefatso ya tshebetso. Tlhaloso e latelang e qaqileng e akaretsa ditlhaloso, ditlamorao tsa tekheniki, maemo a tshebediso, le maemo a amehang:
I. Tlhaloso ea Motheo ea Sehlopha sa Mocheso
Sehlopha sa mocheso sa ultrasound wa metering ya metsi hangata se bontshwa ka “T+digit” (mohlala, T50, T90) kapa mocheso o fapaneng (mohlala, 0.1–50°C), e leng se bontshang:
- Mocheso o phahameng ka ho fetisisa oa ts'ebetso: Moeli o ka holimo oa mocheso o mahareng moo mithara e ka sebetsang ka botsitso nako e telele (nomoro e emela °C);
- Mefuta e fapaneng ea ho ikamahanya le mocheso: Litlhaloso tse ling li boetse li hlokomela moeli o tlase (mohlala, T50 e tsamaellana le 4°C–50°C) ho thibela ho hoama kapa ho qhibiliha ha thepa libakeng tse nang le mocheso o tlase.
II. Litlamorao tsa Tekheniki tsa Sehlopha sa Mocheso ho Limithara tsa Ultrasonic
1. Litlamorao ho Nepahalo ea Tekanyo
- Mokhoa oa ho lekanya lebelo la molumo: Limithara tsa Ultrasonic li bala phallo ka ho lekanya nako ea phatlalatso ea maqhubu a molumo, 'me lebelo la molumo le amana haholo le mocheso (mohlala, lebelo la molumo le eketseha ka ~4% bakeng sa keketseho e 'ngoe le e 'ngoe ea 10°C mochesong oa metsi). Sehlopha sa mocheso se hlalosa mefuta e sebetsang ea mohlala oa puseletso ea lebelo la molumo o hahiloeng kahare; ho feta mocheso o phahameng ho etsa hore algorithm e se sebetse, e eketsa liphoso haholo (mohlala, mithara ea T50 e ka bona liphoso li atoloha ho tloha ho ±1% ho ea ho >±3% ho 60°C).
- Ho tsitsa ha sensor: Lisebelisoa tsa piezoelectric (mohlala, PZT) ka har'a li-transducer tsa ultrasonic li ba le ho kheloha ha maqhubu mochesong o phahameng, ho fokotsa kutloisiso ea kamohelo ea lets'oao esita le ho tima ho ntšoa ha ultrasound.
2. Litlamorao ho Nako e Telele ea Hardware
- Likarolo tsa elektroniki: Mocheso o sebetsang o lekantsoeng bakeng sa li-chip tsa motherboard, li-capacitor, jj., hangata ke -20°C–70°C. Ho feta sehlopha sa mocheso (mohlala, T50) ha ho bake tšenyo e potlakileng empa ho potlakisa botsofali (mohlala, mouoane oa capacitor electrolyte), ho khutsufatsa bophelo ba ts'ebeletso (mohlala, bophelo bo tloaelehileng ba lilemo tse 5 bo ka fokotseha ho fihlela ho lilemo tse 2 ho 60°C).
- Likarolo tsa mechini: Mocheso o phahameng o nolofatsa kapa o thatafatsa matlo le litiiso tsa mithara (mohlala, rabara ea EPDM), sehlopha sa tšireletso se fokotsehang (IP68) le ho beha kotsing ea ho lutla ha metsi/moea.
3. Litlhoko tsa Tikoloho ea ho Kenya
- Ho bapisa mocheso o mahareng: Limithara tsa T50 li loketse metsi a batang kapa maro a mocheso o tlase (mohlala, metsi a lapeng, metsi a potolohang a moea o pholileng). Bakeng sa ho futhumatsa metsi a chesang (≥60°C), khetha T90 kapa limithara tsa metsi a chesang tsa boemo bo holimo.
- Meeli ea mocheso o sebakeng se itseng: Ka nģ'ane ho mocheso o mahareng, mocheso o feteletseng o potolohileng (mohlala, liphaephe tse khantšitsoeng ke letsatsi tse kantle) o ka phahamisa mocheso oa ka hare oa mithara ka holim'a moeli oa sehlopha, e leng se hlokang meriti ea letsatsi kapa ho thibela mocheso.
Nako ea poso: Phuptjane-13-2025