Ngā Mita Rere Ultrasonic Wā-Waka: Te Tika me te Pono mō te Ine Wai Hou

Ko te kaupapa matua o te whai huatanga o ngā mita rere ultrasonic wā-haere ko tōna kaupapa mahi huatau, e ahu mai ana i te ahupūngao, e whakakore ana i ngā herenga o ngā taputapu ine tuku iho. Anei te mahi: Ko te nuinga o ngā tauira he rua ngā transducers e mau ana ki ngā taha rerekē o te paipa (i roto, i waho rānei). Ka mahi tētahi transducer hei kaituku, e tuku ana i ngā ngaru ultrasonic auau-teitei mā roto i te wai ki te transducer tuarua (te kaiwhiwhi). Kātahi ka huri tēnei tukanga: ka tukuna e te transducer tuarua ngā ngaru ki te tuatahi. I te wa e rere ana te wai, ka tere ake te neke o ngā ngaru e haere tahi ana me te ia, ko ngā mea e haere tahi ana me te ia ka puhoi. Ka tatau te tukatuka o roto o te mita i te "rerekētanga wā" i waenga i ēnei haerenga ngaru e rua; mā te whakamahi i tēnei rerekētanga, me ngā taurangi e mōhiotia ana pēnei i te diameter o te paipa me ngā āhuatanga o te wai, ka tatauhia te tere rere me te rōrahi katoa me te tino tika.

E rua ngā painga nui o tēnei hoahoa i ngā mita miihini. Tuatahi, kāore he wāhanga neke—kāore he impeller, he taputapu, he piston rānei hei pakaru, hei ārai, hei whakakapi rānei i ia wā. He maha ngā wā ka ngaro te tika o ngā mita miihini i muri i te 3–5 tau o te whakamahinga (ina koa me ngā wai whakakoi), engari ka mau tonu te tika o ngā tauira wā-haere mō te tekau tau neke atu rānei, ahakoa kei te mahi tonu. Tuarua, ko te whakaurunga kore-whakauru (he iti noa iho rānei te whakaurunga) ko te tikanga kāore he whakararuraru i te rere o te wai, ā, kāore he mōrearea o te turuturu, o te poke rānei—he huringa kēmu mō ngā ahumahi pēnei i te kai me te inu, i ngā rongoā rānei, he mea kāore e taea te whiriwhiri i te parakore o te hua. Mō tētahi ratonga wai ā-rohe, ko te tikanga o tēnei he iti ake ngā waea ratonga, he iti ake ngā utu tiaki, me te tika tonu o te nama mō ngā mano tini o ngā kiritaki.

Ko ngā mita rere ultrasonic Wā-Waka e tū motuhake ana mō tō rātou tino tika me te maha o ngā whakamahinga, e pai ai mō te whānuitanga o ngā tono. Kāore i rite ki ngā mita Doppler (e hiahia ana ki ngā wai hei pupuri i ngā matūriki, i ngā mirumiru rānei hei whakaata i ngā ngaru), ka tino pai te mahi a ngā tauira wā-waka ki ngā wai ma, ōrite - mai i te wai inu me te hau māori ki ngā matū me ngā rongoā. Kāore e taea te whakataurite i tō rātou tika: ko te nuinga o ngā tauira taumata-ahumahi ka eke ki te ±0.5% ki te ±1% o te tauine katoa, ahakoa i ngā tere rere tino iti (tae atu ki te 0.1 m/s). He mea nui tēnei taumata o te aro ki ngā tukanga e pā tika ana te whakahaere rere tika ki te kounga o te hua. Hei tauira, i roto i tētahi wheketere rongoā e whakaranu ana i ngā kai wai, mā te iti o te rerekētanga o te tere rere ka kore e haumaru te puranga; mā ngā mita wā-waka ka whakarite i te horopeta ōrite, te whakaiti i te para me te whakarite i te tutuki i ngā ture.

Haunga ngā wai ma, ka taea hoki e ngā mita wā whakawhiti hou te urutau ki ngā āhuatanga uaua. He maha ngā tauira he whakawhiti ātete-waikura (he mea hanga mai i ngā rauemi pēnei i te titanium, te PTFE rānei) ā, ka taea te whakahaere i ngā momo pāmahana (mai i te -40°C ki te 200°C) me ngā pēhanga (tae atu ki te 100 pae), e pai ai mō ngā paipa hinu me te hau, ngā pūnaha whakamatao ahumahi, tae atu ki ngā tukanga matū pāmahana teitei. Mā tēnei whakamahinga ka kore e hiahiatia he momo mita maha puta noa i ngā mahi rerekē, ka māmā ake te whakahaere taonga me te whakangungu kaimahi.

I tēnei wā o ngā hanganga atamai, he tino pai hoki ngā mita rere ultrasonic wā-haere ki te whakauru raraunga me te aroturuki mamao—e whakapiki ana i te whai huatanga me te tiaki matatau. Ko te nuinga o ngā tauira hou he putanga mamati (pēnei i te 4–20 mA, Modbus, Profinet rānei) ā, ka taea te hono atu ki ngā tūāpapa IoT mā ngā hangarau ahokore pēnei i a LoRaWAN, NB-IoT rānei. Mā tēnei ka taea te aroturuki raraunga rere wā-tūturu, te pānui mamao, me ngā whakatūpato aunoa mō ngā āhuatanga rerekē (hei tauira, ngā pikinga ohorere o te rere, ngā hekenga rānei e tohu ana i te turuturu, i te aukati rānei). Mō tētahi whare hanga, ko te tikanga ka taea e ngā kaiwhakahaere te aroturuki i ngā tere rere puta noa i ngā raina whakaputa maha mai i tētahi papatohu matua, te tautuhi i ngā ngoikoretanga (pēnei i te whakamahinga wai nui i roto i te pūnaha whakamatao) me te whakarerekē i ngā tukanga hei whakaiti i te para. Mō tētahi kamupene whaipainga, ka whakakorehia e te aroturuki mamao te hiahia mō te pānui mita ā-ringa—he mahi uaua e arahi pinepine ana ki ngā hapa—ka tapahia ngā utu whakahaere mā te 25% neke atu rānei. Ka taea hoki te tiaki matapae: mā te tātari i ngā raraunga rere o mua, ka taea e te whaipainga te matapae i te wā e hiahiatia ai te whakatikatika i tētahi mita, me te karo i te wā kore i whakaritea.

I te mea e piki haere ana te pēhanga ki ngā ahumahi ki te whakaiti i ngā para, ki te whakapai ake i te pumau, me te whakatutuki i ngā paerewa ture tino pakari, kua noho ngā mita rere ultrasonic wā-haere hei taputapu tino nui. Mā te hoahoa kore-whakaeke ka whakarite i te pono mō te wā roa, mā te tika e tiaki te kounga me te tutuki i ngā whakaritenga o te hua, ā, mā te pūkenga atamai ka taea te whakatau kaupapa e ahu mai ana i ngā raraunga. Ahakoa e whakamahia ana hei aroturuki i te tohatoha wai inu, hei arotau i ngā tukanga ahumahi, hei whakarite rānei i te parakore o ngā rongoā, ka whakaatu ēnei mita ka taea te tika me te whai hua o te ine wai. I roto i te ao e whai kiko ana ia pata, ia rita, ia karani rānei, ehara i te mea he taputapu noa iho ngā mita rere ultrasonic wā-haere—he hoa mahi rātou ki te hanga mahi pumau, whai hua, me te pakari. Mō tētahi whakahaere e rapu ana ki te whakapai ake i ana pūnaha whakahaere wai, ehara te haumi ki ngā mita rere ultrasonic wā-haere i te whakapai ake noa—he whakapau kaha ki te hiranga.