Me pēhea te whiriwhiri i te mita rere o te awa tuwhera tika: He aratohu whānui

1. Kia Mārama ki ngā Whakaritenga o tō Tono

 

• Momo me ngā Āhuatanga o te Wai: Whakaarohia te āhua o te wai e inehia ana. He wai ma, he wai para he totoka, he wai tino waikura rānei? Hei tauira, i roto i ngā whare maimoatanga wai para, tera pea kei roto i te wai ngā totoka iri, ngā hinu, me ētahi atu poke. I roto i ēnei āhuatanga, he mea nui te mita rere e taea ai te whakahaere i ēnei matū me te kore e aukati, e pakaru rānei. He pai ngā mita rere ultrasonic Doppler mō te ine i ngā wai me ngā matūriki iri, nā te mea e whakamahi ana i te pānga Doppler hei kite i te nekehanga o ngā matūriki i roto i te wai.
• Awhe Rere Rere: Whakatauhia ngā reiti rere iti rawa me te reiti rere mōrahi e hiahiatia ana e te mita. He rerekē ngā āheinga ine reiti rere o ngā mita rere tuwhera. Ko ētahi mita he mea hanga mō ngā tono rere iti, ko ētahi ka taea te whakahaere i ngā rere tere teitei. Hei tauira, i roto i ngā awaawa whakamakuku iti, ko terereTērā pea he iti te tere o te rere, engari i roto i ngā waikeri wai ua nui, ka tino teitei te tere o te rere i te wā ua nui. He mea nui kia whiriwhiria he mita ka taea te ine tika i roto i te awhe tere rere e tumanakohia ana mō tō tono.
• Te Rahi me te Āhua o te Awa: He mea nui anō hoki te rahi me te āhua o te awa tuwhera ki te whiriwhiri i ngā mita. Ka rerekē ngā awa tuwhera mai i te whaiti me te pāpaku ki te whānui me te hohonu. Kei te wātea ngā mita rere i roto i ngā rahi me ngā whirihoranga rerekē hei taurite i ngā rahi o te awa. Mō ngā awa tapawhā, he pai pea ētahi momo pā wai, ētahi momo awa rānei, engari mō ngā awa porowhita, awa trapezoidal rānei, he pai ake pea ētahi atu tikanga ine. Hei tāpiri, ka pā te pari o te awa ki ngā āhuatanga rere, ā, nō reira, ki te whiriwhiri i te mita rere.

2. Arotakehia ngā Hangarau Ine

 

• Ngā Pā me ngā Āwhiowhio: He taputapu miihini tuku iho ēnei e whakamahia ana mō te inererei roto i ngā awaawa tuwhera. Ko ngā pā wai he hanganga e whakatakotoria ana puta noa i te awaawa e akiaki ana i te wai kia rere i runga i tētahi kōhao, i tētahi tihi rānei. Mā te ine i te taumata wai i runga ake i te pā wai, ka taea te tatau i te tere rere mā te whakamahi i ngā tātai kua whakatūria. Ko ngā kōrere, i tētahi atu taha, he wāhanga kuiti o te awaawa e hanga ana i tētahi hononga e mōhiotia ana i waenga i te taumata wai me te tere rere. He māmā noa iho, he pono hoki ngā pā wai me ngā kōrere, engari me āta tāuta me te whakatikatika. Ka pāngia hoki rātou e ngā āhuatanga pēnei i te paru me te kohikohinga paru.
• Ngā Mita Rere Ultrasonic: Ka whakamahia e ngā mita rere awa tuwhera ultrasonic ngā ngaru ultrasonic hei ine i te tere o te wai, te taumata wai rānei i roto i te awa. Ka inehia e ngā mita rere ultrasonic te wā e haere ai ngā ngaru ultrasonic ki runga, ki raro hoki, ko ngā mita rere ultrasonic Doppler ia ka kitea te nekehanga auau o ngā ngaru ultrasonic e whakaatahia ana mai i ngā matūriki i roto i te wai. Ka tukuna e ngā mita rere ultrasonic he ine kore-whakauru, he tika teitei, me te kaha ki te ine i te whānuitanga o ngā tere rere. Kāore hoki i te tino pāngia e te paru me te paru ki te whakataurite ki ngā taputapu miihini. Heoi, ka pāngia pea rātou e ngā mirumiru hau, e te pahuka rānei i runga i te mata o te wai.
• Ngā Mita Rere Hikohiko: Ahakoa e whakamahia whānuitia ana mō ngā mahi paipa kati, ka taea hoki te whakarerekē i ngā mita rere hikohiko mō te whakamahinga o ngā awa tuwhera. Ka mahi rātou i runga i te mātāpono o te ture a Faraday mō te whakapūtanga hikohiko, e whakaputa ana i tētahi papa aukume puta noa i te rere me te ine i te kaha hikohiko e puta mai ana. Ka whakaratohia e ngā mita rere hikohiko he ine tika me te pono, kāore e pāngia e te matotoru, te kawe hiko rānei o te wai, ā, ka taea te ine i te whānuitanga o ngā tere rere. Heoi, me whai wai kawe hiko me te whenua tika mō te mahi tika.

3. Whakaarohia te Tika me te Whakarerekētanga

 

• Whakatikatika: Me whakatikatika auau kia mau tonu ai te tika o te mita rere. He māmā ake te whakatikatika i ētahi mita rere i ētahi atu. Hei tauira, he maha ngā āhuatanga whakatikatika kua hangaia ki roto i ngā mita rere ultrasonic, engari ko ngā pā wai me ngā awaawa wai ka hiahia pea ki ngā tikanga whakatikatika uaua ake. Whakaarohia ngā whakaritenga whakatikatika me te wātea o ngā ratonga whakatikatika i te wā e whiriwhiri ana i tētahi mita rere.

4. Te Tāutanga me te Tiaki

 

• Tāutanga: Ko ētahi mita rere, pērā i ngā mita rere ultrasonic, ka taea te tāuta ngāwari me te kore he mahi hanga nui. Ka taea te tāuta ki te taha o te awaawa, ki runga rānei i tētahi piriti i runga ake i te awaawa. He rerekē, ko te tāutanga o ngā pā wai me ngā awaawa wai ka hiahiatia he mahi hangarau ā-iwi nui, tae atu ki te keri me te hanganga o te hanganga. Whakaarohia ngā whakaritenga tāutanga, te wā me te utu e hiahiatia ana, me te raruraru pea ki te rere i te wā tāutanga.
• Te Tiaki: Me tiaki tonu te mita rere kia pai ai te mahi. He rerekē ngā whakaritenga tiaki mō ngā momo mita rere. Hei tauira, me horoi tonu ngā pā me ngā awaawa kia tangohia ai ngā paru me ngā paru, engari ko ngā mita rere ultrasonic me horoi pea ngā ira whakawhiti i ētahi wā. Whakaarohia te auau tiaki, te uaua o ngā mahi tiaki, me te wātea o ngā wāhanga tāpiri i te wā e whiriwhiri ana koe.

5. Te Whakawhitiwhiti Kōrero me te Putanga Raraunga

 

• Ngā Kawa Whakawhitiwhiti Kōrero: Rapua ngā mita rere e tautoko ana i ngā kawa whakawhitiwhiti kōrero noa, pērā i a Modbus, HART, Ethernet rānei. Mā ēnei kawa ka taea te whakauru i te mita rere ki ngā pūnaha kohikohi raraunga, ngā pūnaha SCADA (Mana Whakahaere me te Kohi Raraunga), ētahi atu taputapu aroturuki me te whakahaere rānei. Mā tēnei ka taea te aroturuki mamao, te takiuru raraunga, me te tātari wā-tūturu o ngā raraunga rere.
• Putanga Raraunga: Me whakarato e te mita rere ngā putanga raraunga whai hua, pērā i te tere rere, te rere whakaemi, me te taumata wai. Tērā pea ka tukuna atu e ētahi mita rere ētahi atu āhuatanga, pērā i ngā āheinga rokiroki raraunga me te kaha ki te whakaputa pūrongo. Whakaarohia ngā whakaritenga putanga raraunga o tō tono, ā, whiriwhiria he mita rere e taea ai te whakatutuki i aua hiahia.

6. Ngā Whakaaroaro Utu

 

• Te Utu Hokonga Tuatahi: He rerekē ngā awhe utu o ngā momo me ngā tauira mita rere. I te nuinga o te wā, he nui ake te utu o ngā mita rere ultrasonic i ngā pā wai me ngā awaawa, engari he pai ake te mahi me te iti ake o ngā utu tiaki mō te wā roa.
• Te Utu Katoa o te Mana Pupuri: Whakaarohia te utu katoa o te mana pupuri mō te roanga o te roanga o te mita rere. He pai ake pea te haumi mō te wā roa ki tētahi mita rere utu nui ake, he iti ake ngā utu tiaki, he nui ake hoki te tika, ki te whakatauritea ki tētahi mita iti ake te utu, he nui ake ngā whakaritenga tiaki, he iti ake hoki te tika.