Putanga o ngā Mita Rere Ultrasonic

1. Ngā Tohu Putanga Analog

Ko ngā putanga anarohiko tino rongonui mai ingā mita rere ultrasonicko ngā tohu iahiko 4 - 20 mA me ngā tohu ngaohiko 0 - 5V/0 - 10V. He tino pono te porowhita iahiko 4 - 20 mA, ā, he ātete ki te pokanoa hiko, he mea tino pai mō ngā tuku tawhiti i roto i ngā tautuhinga ahumahi. Ko te iahiko 4 mA e rite ana ki te kore rere, ko te 20 mA e tohu ana i te tere rere mōrahi emita rerekua whakatikatikaina mō. Hei tauira, i roto i tētahi tipu maimoatanga wai, ka taea te whāngai tika i tēnei tohu 4 - 20 mA ki roto i tētahi pūmana arorau ka taea te whakarite (PLC) hei whakahaere i te rere o te wai mā roto i ngā tukanga maimoatanga rerekē.

Ka whakamahia hoki ngā tohu ngaohiko, pērā i te 0 - 5V, te 0 - 10V rānei. He ngāwari noa iho te hono atu ki ngā taputapu hiko pērā i ngā kāri kohikohi raraunga. Heoi, he ngāwari ake te pokanoa i ngā taura roa. He maha ngā wā ka whakamahia ēnei tohu i roto i ngā whakamātautau taiwhanga, i ngā pūnaha rānei kei reira te tawhiti i waenga i temita rereā, he poto te taputapu whiwhi.

2. Ngā Putanga Mamati

2.1 Putanga Pāpāho

He maha ngā mita rere ultrasonic e whakarato ana i te putanga pātī. Ko ia pātī e tohu ana i tētahi rōrahi wai motuhake e rere ana i roto i te mita rere. He rite tonu te auau o ngā pātī ki te tere rere. Hei tauira, ki te whakaputahia he pātī kotahi mō ia 100 miririta wai, ka hua ake he auau pātī teitei ake i te tere rere teitei ake. He whai hua tēnei momo putanga mō ngā tono e hiahiatia ana te tatau ngāwari i te rōrahi wai, pērā i ngā pūnaha inenga iti, i ētahi tono aroturuki rere iti te utu rānei.

2.2 Ngā Putanga Whakawhitiwhiti Kōrero Raupapa

Ko ngā kawa whakawhitiwhiti raupapa pēnei i te RS - 485, RS - 232, me Modbus he putanga matihiko noa. Mā te RS - 485 ka taea te whakawhitiwhiti maha-taka, ka taea ai te hono i ngā mita rere maha ki tētahi kaiwhakahaere kotahi i runga i tētahi pahi kotahi. He tawhiti whakawhitiwhiti kōrero roa, ā, ka taea te whakahaere i te whakawhiti raraunga tere-teitei. Ko Modbus, i tētahi atu taha, he kawa whānuitia te whakamahi i roto i te mara aunoatanga ahumahi. Ka whakaratohia he huarahi paerewa mō te whakawhitiwhiti raraunga i waenga i ngā taputapu rerekē. Mā Modbus,ngā mita rere ultrasonicka taea te tuku i ngā mōhiohio taipitopito pēnei i te tere rere, te rōrahi katoa, me te tūnga o te taputapu ki tētahi pūnaha whakahaere matua. He tino whai hua tēnei i roto i ngā tipu ahumahi nui e hiahiatia ana te aroturuki me te whakahaere i ngā tawhā rere maha i te wā tūturu.

3. Te Whakatikatika me te Tika o te Putanga

Te tika o te putanga mai i tētahimita rere ultrasonice whakawhirinaki ana ki te whakatikatika tika. Ko te tikanga, ka whakaratohia e ngā kaihanga ngā āhuatanga whakatikatika e whakamahia ana hei huri i ngā tohu putanga mata (pēnei i ngā inenga wā rere mō ngā mita rere ultrasonic) ki ngā uara tere rere, uara rōrahi rānei e whai tikanga ana. He mea nui ngā tirotiro whakatikatika auau kia mau tonu ai te tika o te putanga i roto i te wā. Ko ngā āhuatanga pēnei i ngā huringa o ngā āhuatanga wai (pēnei i te matotoru, te pāmahana rānei), te pakaru me te haehae o ngā wāhanga o te mita rere, me ngā āhuatanga taiao ka pā ki te tika o te putanga. Mā te whakatikatika i te mita rere i ia wā, me te whakarerekē i te putanga i runga i ngā hua whakatikatika, ka taea te whiwhi raraunga ine rere pono me te tika.

Hei whakamutunga, ko ngā putanga ongā mita rere ultrasonicHe rerekē ngā momo, ā, he rerekē hoki ngā mahi e whakamahia ana i roto i ngā momo tono. Ahakoa he tohu anaro mō te whakahaere māmā, he putanga pātere mō te tatau rōrahi taketake, he putanga whakawhitiwhiti raupapa mamati rānei mō te whakaurunga raraunga uaua, he mea nui te mārama ki ēnei putanga hei whakamahi pai i te hangarau mita rere ultrasonic.