I waihotia e au aku whakakā mānu mō ngā pūoko taumata ultrasonic — anei te kōrero hāngai i muri i te rua tau

E mōhio ana koe he aha te mea i pana i ahau ki runga i te tapa? He whakakā mānu e tāmi ana i 2 a.m. kei runga i te ipu waipiro, ā, kāore tētahi tangata i mōhio e ngokingoki ana te taumata tae noa ki te ata. I muri i taua raruraru ka tīmata ahau ki te titiro nui ki ngā pūoko taumata whakapā kore. Anei te putanga pono i muri i te tāuta me te noho me ngā wae ultrasonic puta noa i ngā pae e rua.

Tuatahi, ngā mea taketake, nā te mea he pai ki ngā rau hoko te whakararuraru. Ka hamama noa iho tētahi pūoko ultrasonic i tētahi oro teitei ki raro i te wai, ā, ka whakarongo ki te pāoro. Ka whakawāteatia e te maramara taua haerenga huri noa, e mahi ana i te pāngarau ki te tere o te oro, ka kōrero ki a koe i te tawhiti ki te mata. Kāore he wāhanga mākū, kāore he mea e pā ki te paru. Mō ngā matū kino, Ko tērā wāhanga te tākaro haumaru rawa kei a koe — te waikawa pūngāwhā, whakakino, wairewa whakatuki, ahakoa he aha; Ka noho te pūoko ki runga, ā, e kore rawa te wai e kite.

Engari — ā, koinei te wāhanga kāore he tangata e tā ki te pukapuka — ehara i te mea mīharo, ā, i ako ahau i tēnā i te huarahi uaua. Ma te huka koe e tukituki. I runga i te rua wai parakore me te mata huka, Ka tīmata te pūoko ki te pānui i te tihi o te huka, kaua ko te wai, ā, tata tonu ki te kotahi waewae te neke o mātau tau. He rite tonu te mahi a te steam me te kohu taumaha: ka pōturi te haruru, nā reira ka hoki hē mai te "tawhiti". He mea nui hoki ngā tārere pāmahana. Ka mauria e ngā wae tētahi thermistor rō-tonu hei utu, ā, ka mahi i te nuinga o te wā, engari i roto i tētahi kura e kite ana i te tārere 40°C i waenganui i te ahiahi wera me te neke pō mātao, Kua kite ahau i te 2–3% o te nekeneke pūmau. Tērā hoki te rohe matapo — tangohia te wai ki roto i taua tāhei mate i raro tonu i te transducer, ā, ka tuwha noa iho i te para. Me eke teitei rawa koe kia kore ai tō taumata mōrahi e tae ki reira. Nō reira kāo, ehara i te "tautohu tika" i ia āhuatanga. Kia mōhio koe ki tō kura i mua i tō whakawhirinaki.

I ngā wā katoa ka pātai mai te tangata ki a au: he aha e kore ai e whakamahi hihiani noa? Pātai tika. Ka wera te hihiani i ngā ngaruiti, kaua ko te oro, nā reira ka kata i te waahi, huka, puehu, me te pāmahana. Mēnā kei te ine koe i roto i te paraikete kohu, i roto rānei i te wera, ipu pēhanga, Ko te hihiani te utauta tika. Ko te hopu ko te utu. Ko tētahi kaituku hihiani tika — kīia he Endress Hauser Micropilot, he Siemens Sitrans LR rānei — e whakahaere ana $1,500 ki $4,000+ mō ia piro. Ultranona? Mō te wai kotahi, hinu, te mahi matū māmā rānei e titiro ana koe ki te tuatoru ki te haurua o tēnā. Mō te 90% o ngā kura e mau ana i te wai, hinu hinu, ngā mea kāore rānei i te whakatuki, Ko te ultrasonic te whiriwhiri tika, ā, kāore au i te whakamā ki te kōrero.

He tau raima mai i ngā mea kua tohua e au, i hokona hoki:

EchoSonic Raina Rere / EchoPod — te hoiho mahi pūtea, $200–$500 i te wae. Dead simple, 4–20mA ki waho. He pai mō tētahi wai taketake, kura matū rānei.
Senix ToughSonic — $250–$600, ngā mea uaua, ngāwari ki te whakairi i runga i te paipa whāiti.
Pepperl Fox VEGASON — $600–$1,800, ahumahi ake, mana hihi pai ake.
Siemens Sitrans LU150 / LU240 — $700–$1,500, mārō, he pai te tākaro ki tō rātou pūnaha PLC.
Whakakākahu Hauser Prosonic FMU30 / FMU90 — $800–$2,500, te kōwhiringa "hoko kotahi" mēnā e hiahia ana koe ki te ingoa me te tautoko.
Ehara te tāutanga i te pūtaiao tākirirangi, engari ehara hoki i te kore. ā-tinana: whakakāhore i te taupoki, tohu tika iho te pūoko, kia ūkuia i ngā pārekareka me ngā kaupae arawhata (ko ērā e whakaputa ana i ngā pāoro teka). Mō tētahi whakahou mā ka tahua e au mō te haora mō ia kura me ngā waea. He ngāwari noa iho te oma 4–20mA ki te PLC mēnā kua whiwhi kē koe i te ara; ki te kore, Tata ki te $200–$400 te utu o te tohunga hiko ki a au i runga anō i te roanga o te oma. Kātahi ka tōkarikari: Ka kī atu koe ki te pūmanawa i te tawhiti "kore" putu me te tawhiti "whānui" katoa, Koia anō. Ko te nuinga o ngā wae he mahere-pāoro e ako ana i ngā ārai pūmau o te kura kia mutu ai te hīkoi hē i runga i te kurupae, i te whakaoho rānei. Pono, He roa ake taku whakawhirinaki ki te pūmanawa i te whirihora.

Kotahi te mea i mīharo ki a au: I tino māharahara tā mātou inihua taunaha. I muri i tā mātou tuhinga i te aroturuki kore-whakapā haere tonu i runga i ngā kura waikawa me ngā kura kōhukihuki - kāore anō kia matapae, Kua kore he tangata e piki ana me te rīpene toua - i tukitukia e rātau tētahi wāhanga i te kaieke taiao/maringi i te whakahōutanga. Ehara i te tau tino nui, engari i honoa ki te kore e mōrearea te tangata i runga i te kura, I utua e ia ngā pūoko tere. Mēnā kei te rokiroki koe i tētahi mea mōrearea, Waea atu ki tō kaiwhakahaere i mua i tō hoko; I ētahi wā kua tanumia kētia te whakaritenga aroturuki ki tō kaupapahere, ā, ko te haere ki mua ka whakaora i te pouri.

Te wāhi i tino pai ai: he teihana hiki wai parakore ā-rohe (I whakamahia e au tētahi wae IP68 - i ora mai i te tīmatanga me te hauhau), he puna wai ahuwhenua (he Raina Rere māmā, I hiahia noa ahau ki te mōhio "he iti te hāroto"), me tētahi kura kōeke kai e kore ai e pā ki te hua mō te hauora. Ki hea kē ahau e haere ai ki te hihiani: he kura asphalt wera, he oko whai huka mata taumaha, tētahi mea rānei e maka ana i te nui o te kohu waiwaro — kāore te ultrasonic i te hari i reira.

Nā reira anei taku whakaaro pono. Mēnā he iti tō pūtea, ā, kāore tō wai i te mahi i tētahi mea rerekē — kāore he huka, kāore he korohū, Kāore he wera pōrangi - he nui ake te pūoko ultrasonic, ā, ka miharo koe he aha koe i whakamau ai i ngā mānu mō te roa rawa. Ehara te parenga tūturu i te pūoko e hopu ana i tētahi raruraru i muri i te putanga; ko te mōhio kei te hē te taumata i a koe kāore koe i runga i te pae, me te āhei ki te mahi i tētahi mea mō taua mea. Whakapaua ngā moni i tiakina e koe ki te hihiani i runga i tētahi waharoa pūkoro kia tae tonu ai te matohi ki tō waea — koia tērā te wāhanga e ārai ai i a koe i te raruraru.