Iyini i-Passive sensor?

Umbhali: Li Ai
Umthombo: Ulink Media

Iyini i-Passive sensor?

Inzwa ye-Passive ibizwa nangokuthi inzwa yokuguqula amandla. Njenge-inthanethi Yezinto, ayidingi ukunikezwa kwamandla kwangaphandle, okungukuthi, iyinzwa engadingi ukusebenzisa amandla angaphandle, kodwa futhi ingathola amandla ngenzwa yangaphandle.

Sonke siyazi ukuthi izinzwa zingahlukaniswa zibe izinzwa zokuthinta, izinzwa zesithombe, izinzwa zokushisa, izinzwa ezinyakazayo, izinzwa zendawo, izinzwa zegesi, izinzwa zokukhanya nezinzwa zokucindezela ngokuya ngenani elihlukile lokubona nokutholwa. Ezinzwa zokwenziwa, amandla okukhanya, imisebe ye-electromagnetic, izinga lokushisa, amandla okunyakaza komuntu nomthombo wokudlidliza otholwe izinzwa kuyimithombo yamandla engaba khona.

Kuyaqondakala ukuthi izinzwa zokwenziwa zingahlukaniswa zibe izigaba ezintathu ezilandelayo: inzwa ye-optical fibre passive, inzwa yokwenziwa kwamagagasi angaphezulu kanye nenzwa yokwenziwa esekelwe ezintweni zamandla.

• Inzwa yefiber ebonakalayo

Inzwa yefiber optical iwuhlobo lwenzwa olususelwe kwezinye izici zefiber optical ezakhiwe maphakathi nawo-1970. Kuyidivayisi eguqula isimo esilinganisiwe sibe isignali yokukhanya elinganisekayo. Iqukethe umthombo wokukhanya, inzwa, umtshina wokukhanya, isifunda se-signal conditioning kanye ne-optical fiber.

Inezici zokuzwela okukhulu, ukumelana nokuphazamiseka kwe-electromagnetic okuqinile, ukufakwa kahle kukagesi, ukuzivumelanisa nemvelo okuqinile, ukulinganisa okukude, ukusetshenziswa kwamandla okuphansi, futhi iya ngokuya ivuthwa ekusetshenzisweni kwe-inthanethi yezinto. Isibonelo, i-optical fibre hydrophone iwuhlobo lwenzwa yomsindo ethatha i-optical fibre njengento ebucayi, kanye nenzwa yezinga lokushisa lefiber optical.

• Inzwa ye-Surface Acoustic Wave

Inzwa ye-Surface Acoustic Wave (SAW) iyinzwa esebenzisa i-surface acoustic wave device njengento ezwayo. Ulwazi olulinganisiwe luboniswa ukushintsha kwesivinini noma imvamisa yegagasi le-acoustic elingaphezulu kudivayisi ye-SURFACE acoustic wave, futhi liguqulwa libe inzwa yokukhipha isignali kagesi. Kuyinzwa eyinkimbinkimbi enezinhlobonhlobo zezinzwa. Ihlanganisa ikakhulukazi inzwa yokucindezela kwegagasi elingaphezulu, inzwa yokushisa ye-surface acoustic wave, inzwa yofuzo ye-surface acoustic wave, inzwa yegesi yamakhemikhali engaphezulu kwe-acoustic wave kanye nenzwa ehlakaniphile, njll.

Ngaphandle kwe-passive optical fibre sensor enokuzwela okuphezulu, ingakwazi ukulinganisa ibanga, izici zokusetshenziswa kwamandla aphansi, izinzwa ze-acousic wave wave zisebenzisa i-Hui frequency change ukuqagela ukushintsha kwesivinini, ngakho-ke ukuguqulwa kwesheke kuya esilinganisweni sangaphandle kungaba kakhulu. enembile, ngesikhathi esifanayo izici zevolumu encane, isisindo esincane, ukusetshenziswa kwamandla okuphansi kungayivumela ukuthi ithole izakhiwo ezinhle ezishisayo nezomshini, Futhi ingenise inkathi entsha yezinzwa ezingenazintambo, ezincane. Isetshenziswa kakhulu esiteshini esingaphansi, isitimela, i-aerospace kanye neminye imikhakha.

• Inzwa ye-Passive Esekelwe Ezintweni Zamandla

Izinzwa ezingenzi lutho ezisekelwe ezintweni zamandla, njengoba negama lisho, zisebenzisa amandla avamile ekuphileni ukuguqula amandla kagesi, njengamandla okukhanya, amandla okushisa, amandla emishini nokunye. Inzwa engenzi lutho esekelwe ezintweni zamandla inezinzuzo zebhande elibanzi, ikhono eliqinile lokulwa nokuphazamiseka, ukuphazamiseka okuncane entweni elinganisiwe, ukuzwela okuphezulu, futhi isetshenziswa kabanzi emikhakheni yokulinganisa i-electromagnetic efana ne-voltage ephezulu, umbani, amandla enkundla yemisebe enamandla, i-microwave enamandla amakhulu nokunye.

Inhlanganisela Yezinzwa Ezingenasici Nobunye Ubuchwepheshe

Emkhakheni We-inthanethi Yezinto, izinzwa ze-passive zisetshenziswa kabanzi kakhulu, futhi izinhlobo ezahlukahlukene zezinzwa zokungenzi lutho zishicilelwe. Isibonelo, kuye kwazalwa izinzwa ezihlanganiswe ne-NFC, RFID ngisho ne-wifi, i-Bluetooth, i-UWB, i-5G nobunye ubuchwepheshe obungenawaya.Kumodi yokwenziwa, inzwa ithola amandla kumasignali omsakazo endaweni ngokusebenzisa uthi, bese kugcinwa idatha yenzwa. kumemori engaguquguquki, egcinwayo lapho amandla enganikiwe.

Futhi izinzwa ze-wireless textile strain sensors ezisekelwe kubuchwepheshe be-RFID, Ihlanganisa ubuchwepheshe be-RFID nezinto zendwangu ukwenza okokusebenza okunomsebenzi wokuzwa ubunzima. Inzwa ye-RFID ye-textile strain sensor isebenzisa imodi yokuxhumana neyethulwa yobuchwepheshe bethegi ye-UHF RFID, ithembela emandleni kagesi ukuze isebenze, inamandla amancane kanye nokuguquguquka, futhi iba yinketho engaba khona yamadivayisi agqokekayo.

Ekugcineni

I-inthanethi ye-Passive yezinto iyindlela yokuthuthukisa yesikhathi esizayo ye-inthanethi Yezinto. Njengesixhumanisi se-inthanethi Yezinto engenzi lutho, izidingo zezinzwa azisakhawulelwe ekusetshenzisweni kwamandla okuncane nokuphansi. I-inthanethi ye-Passive yezinto izophinde ibe isiqondiso sentuthuko okufanele siyitshale. Ngokukhula okuqhubekayo kanye nokuqanjwa okusha kobuchwepheshe benzwa yokwenziwa, ukusetshenziswa kobuchwepheshe benzwa yokwenziwa kuzokwanda kakhulu.