Te Whakatairite i ngā Mita Rere Pēhanga Rerekē me ngā Mita Rere Ultrasonic

He taputapu nui ngā mita rere e whakamahia ana i roto i ngā ahumahi maha hei ine i te tere rere o ngā wai me ngā hau. Ko ngā momo mita rere e rua e tino kitea ana kongā mita rere pēhanga rerekētanga (DP)mengā mita rere ultrasonicHe rerekē ngā painga o ia momo, ā, he pai mō ngā tono rerekē. I roto i tēnei tuhinga, ka whakatauritea e mātou ēnei momo mita rere e rua, me te matapaki i tā rāua mahi, ō rāua painga, me ngā whakamahinga pai rawa atu.

1. He pēhea te mahi a ngā mita rere pēhanga rerekē?

A mita rere pēhanga rerekētangaka ine i te tere rere o te wai mā te waihanga i te hekenga pēhanga puta noa i te aukati rere (pēnei i te pereti kōhao, te ngongo venturi, te pūwero rere rānei). Ko te mātāpono kei muri i tēnei momo mita e hangai ana kiTe mātāpono a Bernoulli, e kī ana i te pikinga ake o te tere o te wai, ka heke iho tōna pēhanga.

Te Kaupapa Mahi:

• A herenga(hei tauira, te pereti kōhao) ka whakatakotoria ki te ara rere, ka heke te pēhanga.
• Ka ine te mita i te rerekētanga o te pēhanga i mua atu, ā, i muri mai i te herenga (tepēhanga rerekētanga).
• Mā te whakamahi i te whanaungatanga i waenga i te maturuturunga pēhanga me te tere rere, ka tatau te mita rere i te tere rere mā te whakamahi i ngā tātai pāngarau, i ngā ānau whakatikatika rānei.

E pā tika ana te rerekētanga o te pehanga ki te tere o te wai, e taea ai e te mita te tatau i te tere rere.

2. Me pēhea te mahi a ngā mita rere oro-ā-oro?

An mita rere ultrasonicka whakamahia ngā ngaru oro (ngā ngaru ultrasonic) hei ine i te tere rere o te wai, o te hau rānei. E rua ngā momo matua o ngā mita rere ultrasonic:wā whakawhitimeDopplerKo ngā mita ultrasonic wā-haere he mea whakamahi whānuitia ake i roto i ngā wai ma, ōrite, ko ngā mita Doppler ia e whakamahia ana i roto i ngā wai kei roto ngā matūriki tautau, ngā mirumiru rānei.

Te Kaupapa Mahi:

• Ngā mita ultrasonic wā-haereTukuna ngā pāorooro ultrasonic ki runga, ki raro hoki i roto i te wai. Mā te whakatairite i te wā e haere ai ngā pāorooro i ngā taha e rua, ka whakatauhia te tere rere i runga i te rerekētanga o te wā i puta mai i te tere rere.
• Ngā mita ultrasonic DopplerMā te ine i te nekehanga auau o ngā ngaru oro e whakaatahia ana e ngā matūriki, e ngā mirumiru rānei i roto i te wai, ka whakatauhia te tere rere i runga i te rahi o tēnei nekehanga auau.

Kāore e hiahiatia ana e ngā mita rere ultrasonic tētahi wāhanga neke, ā, he maha ngā wā ka tāutahia ki waho ki runga i te paipa, he mea tino pai mō ngā ine rere kāore e whakaekea.

3. Ngā Painga o ngā Mita Rere Pēhanga Rerekē

Kua roa e whakamahia whānuitia ana ngā mita rere pēhanga rerekē, ā, e whakawhirinakihia ana mō tō rātou pono i roto i ngā momo mahi. Ko ētahi o ngā painga matua ko:

a. Hangarau Kua Whakapūmautia

• Kua roa ngā mita rere pēhanga rerekē e whakamahia ana, ā, he hangarau kua roa e whakamahia ana. He mea noa te whakamahi i roto i ngā ahumahi pēnei i te hinu me te hau, te tukatuka matū, me te maimoatanga wai.

b. Te Tika Teitei mō ngā Wai me ngā Hau

• Ka whakaratohia e rātou he inenga pono, tika hoki mō te whānuitanga o ngā wai me ngā hau, inā koa he pumau, he matapaetia hoki te rere.

c. Pakari, ā, he whai hua te utu

• He pakari te nuinga o ēnei mita, ā, ka taea e rātou te tu atu ki ngā pēhanga me ngā pāmahana teitei, he mea tino pai mō ngā taiao ahumahi uaua.
• He iti ake te utu i te nuinga o te wā i ētahi atu momo mita rere.

d. He pai mō ngā wai matotoru

• He pai te mahi a ngā mita rere pēhanga rerekē me ngā wai matotoru nui, pērā i te hinu, i ngā paru rānei, ina raru pea ētahi atu mita rere.

4. Ngā Painga o ngā Mita Rere Ultrasonic

Kua piki ake te rongonui o ngā mita rere ultrasonic i ngā tau tata nei nā runga i ō rātou hangarau matatau me ngā tikanga ine kore-whakaeke. Anei ētahi painga matua:

a. Inenga Kore-Whakaekenga

• Ka taea te tāuta i ngā mita rere ultrasonic ki waho o te paipa, me te kore e pā ki te wai, he mea tino pai mō ngā mahi me karo i te poke, me te uaua rānei te uru atu ki te wai.

b. Kāore he Wāhanga Nekeneke

• Nā te mea kāore he wāhanga neke o ngā mita ultrasonic, he iti ake ngā whakaritenga tiaki e hiahiatia ana ki te whakataurite ki ētahi atu mita rere pērā i ngā mita pēhanga rerekētanga, e whakawhirinaki ana ki ngā wāhanga neke (hei tauira, ngā pereti kōhao).

c. He pai mō ngā wai ma, me ngā wai kore ma

• Ngā mita rere ultrasonic wā-haerehe tino pai mō ngā wai ma, ōrite hoki pērā i te wai, ngā matū me ngā hinu.Ngā mita ultrasonic Dopplerka taea te whakamahi mō ngā wai kei roto ngā totoka iri, ngā mirumiru hau rānei, pērā i te wai para, i te paru rānei.

d. Te Tika Teitei

• He tino tika ngā mita rere ultrasonic, ā, he tino whai hua hoki mō te ine i ngā tere rere iti. Ka taea hoki e rātou te kite i ngā huringa iti rawa o te rere, ā, he mea tino pai mō ngā tono tika.

e. Kāore he Ngaronga Pēhanga

• He rerekē tēnei i ngā mita pēhanga rerekē, e heke ai te pēhanga nā te herenga o te ara rere, kāore ngā mita rere ultrasonic e aukati i te rere, ā, kāore hoki he pānga ki te pēhanga o te wai.

5. Whakataurite: Āhea te Whakamahi i ia Mita Rere

He mea tino pai ngā mita rere pēhanga rerekē ina:

• Me ine e koe te rere i roto i ngā pūnaha he teitei te pēhanga, he teitei rānei te pāmahana.
• He ma, he ōrite rānei te wai i te nuinga o te wā, ā, he pumau te tere rere.
• Kei te mahi koe me ngā wai, ngā hau rānei he matotoru te matotoru, ā, kāore pea ētahi atu momo mita e pai te mahi.
• Me whai otinga pakari, whai hua hoki mō ngā tono ahumahi.

He mea tino pai ngā mita rere orooro ina:

• Me ine koe i tētahi inenga kore-whakaeke, me te kore e aukati i te rere, e kore hoki e pā ki te wai.
• Kei te ine koe i ngā wai, i ngā hau rānei ma, kei te whakamahi rānei koe i te mita rere ultrasonic Doppler hei ine i ngā wai he matūriki tautau, he mirumiru rānei.
• Me ine tika te rere, inā koa mō ngā tono rere iti.
• E hiahia ana koe ki tētahi mita he iti noa ngā mahi tiaki e hiahiatia ana, ā, kāore he hekenga pēhanga.

6. Whakamutunga

Ngā mea e ruangā mita rere pēhanga rerekētangamengā mita rere ultrasoniche taputapu tino whai hua mō te ine i te rere, engari he tino pai mō ngā tono rerekē.

• Ngā mita rere pēhanga rerekēHe kōwhiringa pai mō ngā pūnaha pēhanga teitei, ngā wai matotoru teitei, me ngā taiao ahumahi tuku iho e tino hira ana te whai huatanga me te pono.
• Ngā mita rere oroorohe painga nō te ine kore-whakaeke, te tino tika, me te iti o te tiaki, he mea tino pai mō ngā wai ma, ngā āhuatanga rere iti, me ngā tono me karo i te ngaronga pēhanga.

Mā te mārama ki ngā rerekētanga me ngā painga o ēnei mita rere e rua ka āwhina i a koe ki te whiriwhiri i te kōwhiringa pai rawa atu mō ō hiahia ine rere.