I. He aha te ultrasound?

Ko ngā ngaru ultrasonic he tikanga e whakamahi ana i te pūngao i puta mai i ngā wiri auau-tiketike hei mahi ki te mata o tētahi mea mahi, ā, mā reira ka tutuki te hononga o ngā wāhanga whakarewa.

II. Te Mātāpono Mahi o ngā Ngaru Ultrasonic

1. Ka hurihia te pūngao hiko hei wiri ā-pūkaha auau-teitei, kātahi ka tukuna ki te pūwero whakarewa mā te pane whakarewa kua whakahāngaihia kia oro. Ka mirimiri ngā wahi mahi o runga me o raro tetahi ki tetahi i raro i ngā huringa pēhanga o te 20,000, 40,000 rānei ngā wā ia hekona. Mā te pānga whakakotahi o te wiri auau-teitei me te pēhanga ka marara te paparanga angiangi o te rauemi me ngā waikura ki runga i te mata o te wahi mahi, ka hanga he whakarewa horapa ma, ka taea te whakahaere. Mā te whakakotahitanga o ngā ngota i waenga i ngā wahi mahi, ka hangaia he paparanga hanumi whakarewa pono.
2. Ka hurihia te au auau-iti hei au auau-tiketike e te pūhiko hiko. Kātahi ka hurihia te au auau-tiketike hei wiri ā-pūkaha e te pūwhakawhiti hiko. Ko te pūwhakatikatika whānui me te pane whakarewa te kawenga mō te whakarerekē i te whānui o te wiri. I raro i tētahi pēhanga pūmau, ka mirimiri, ka tukinga ngā hanganga ngota i runga i te mata whakarewa tetahi ki tetahi, ka tutuki te urunga waenga-ngota, ā, ka oti te whakarewa.

Te mōhiotanga taketake me te whakatau i ngā raruraru o te ultrasound

III. Ngā Hapa Noa i roto i te Whakarewatanga Ultrasonic

(a) Te whakapiripiri kāore i oti

1. Kāore i te rawaka te mana whakaputa whakarewa: kāore i te rawaka te pēhanga, kāore i te rawaka te kaha, kāore rānei te turanga i te mau pai.
2. Kāore i te rawaka te pūngao whakarewa: Ko te tātai mō te tatau i te pūngao putanga ko E=P×T=F×V×T=μN×A×f×T (ko E te pūngao, ko P te mana, ko V te tere, ko μ te tauwehenga waku, ko N te pēhanga, ko A te kaha, ko f te auau, ā, ko T te wā). Mā te kore e rawaka te pūngao ka ngoikore te whakarewa.
3. Ka pāngia te pānga o te here whakarewa e ngā paparanga hinu, waikura rānei i runga i te mata o te rauemi.
4. Ki te koi rawa ngā niho, ka ngāwari te uru ki roto i te whakarewanga i te wā e whakarewahia ana.
5. He paninga rauemi kei te mata o te whakarewa kāore e tika mō te whakarewa ultrasonic.
6. Kāore ngā rauemi e whakarewaina ana e pai ana mō te whakarewa ultrasonic.

(ii) Te turanga pane whakarewa

Take Ina pā te pane whakarewa, te turanga whakarewa rānei ki te rauemi, ka puta he pāmahana tino teitei, ka uru te ngota ngota ki waenganui i te rauemi me te pane whakarewa, te turanga whakarewa rānei, ka hua ake te piri.

Otinga :

1. Tirohia ngā niho o te pane me te turanga o te whakarewa. Mēnā he kino te pakaru, ka piki ake te pāmahana, ā, me whakatika wawe.
2. I te mea e whakarite ana i ngā hua whakarewa, ka taea te whakanui ake i te mana me te whakapoto i te wā whakarewa hei whakaiti i te whakawhiti pūngao nui rawa i waenga i te pane whakarewa me te rauemi.

(iii) Ngā kapiti whakarewa

1. Te ngatata huri noa i te hononga whakarewa: Ina whakarewahia he maha ngā paparanga o te rauemi, ka hanga he pari te taha o te hononga whakarewa. Ina wiri te pane whakarewa, ka whakamahia he kaha kukume ki te taha, ka ngāwari ai te pakaru.
2. Otinga Me mahi he maimoatanga motuhake ki te taha o te hononga whakarewa hei whakarite kia ōrite te tohatoha ahotea me te whakaiti i te kaha kume e puta mai ana i te wiri.
3. Ngā pakaru e tata ana ki te hononga honohono: Mā te wiri o te pane honohono ka neke whakamua, ka neke whakamua te rauemi. Hei tauira, ina honoa te pepa konumohe ki te pākahiko, ka ngawari te pakaru o te mea ka toia.
4. Ngā otinga ① Hurihia te ahunga o te tauira niho (hei tauira, whakamahia ngā tauira whakarara) hei whakatika i te ahunga o te kaha ki runga i te rauemi; ② Whakaroahia te ripa kia tika ai te hanga i tētahi āputa ārai i waenganui i te pākahiko me te hononga honohono.

(iv) Ngā piki me ngā heke nui o te mana whakaputa

Take He maha ngā āhuatanga e pā ana ki te mana whakaputa, ā, me tirotiro takitahi.

Otinga :

1. Tirohia te tāutanga o te waeine takitoru, tirohia mēnā he pakaru, ā, me huihui anō mēnā e tika ana.
2. Tirohia mēnā kua mau te whakau o ngā tīwiri turanga.
3. Tirohia mēnā he āputa kei te wāhi o te rawhi turanga.
4. Tirohia ngā taputapu whakarewa hei whakaū kei te ōrite tonu ngā tūranga whakarewa i ia wā.
5. Tirohia te mata o te rauemi mō ngā paru waikura, ngā paru hinu rānei.
6. Whakaūtia kei te ōrite ngā whakatakotoranga o ngā rauemi e tae mai ana (ina pumau te whiu o te pane whakarewa, ka rerekē te mana whakaputa i ngā rerekētanga o te matotoru me te pakeke o ngā rauemi).
7. Tirohia te pumau o te pūngao hau o te wheketere, me te tirotiro mēnā he rerekētanga kei roto i te ine pēhanga hau whakauru.
8. Tirohia mēnā he pumau te putanga ultrasonic o te pouaka hiko.

(v) Taumahatanga nui rawa

Ngā Take kia rua ngā āhuatanga: te taumaha rawa o te mana me te taumaha rawa o te auau.

Otinga :

1. Whakaitihia ngā tawhā whakarewa kia tika.
2. Whakawhāitihia te hohonutanga o te hekenga o te pane whakarewa kia mau tonu ai he āputa i waenganui i te pane whakarewa me te turanga.