Kodi Passive Sensor ndi chiyani?

Wolemba: Li Ai
Chitsime: Ulink Media

Kodi Passive Sensor ndi chiyani?

Sensa yosagwira ntchito imatchedwanso sensa yosinthira mphamvu. Monga intaneti ya Zinthu, sifunikira mphamvu yakunja, ndiko kuti, ndi sensa yomwe siifunikira kugwiritsa ntchito mphamvu yakunja, komanso imatha kupeza mphamvu kudzera mu sensa yakunja.

Tonsefe tikudziwa kuti masensa amatha kugawidwa m'magulu monga masensa okhudza, masensa owonera zithunzi, masensa otenthetsera, masensa oyenda, masensa oikapo zinthu, masensa a gasi, masensa owunikira ndi masensa opanikizika malinga ndi kuchuluka kosiyanasiyana kwa kuzindikira ndi kuzindikira. Kwa masensa osagwira ntchito, mphamvu ya kuwala, kuwala kwa maginito, kutentha, mphamvu ya kayendedwe ka anthu ndi gwero la kugwedezeka lomwe masensa amapeza ndi magwero amphamvu.

Zikumveka kuti masensa osagwira ntchito akhoza kugawidwa m'magulu atatu otsatirawa: sensa yosagwira ntchito ya fiber optical, sensa yosagwira ntchito ya surface acoustic wave ndi sensa yosagwira ntchito yochokera ku zipangizo zamagetsi.

• Chojambulira cha kuwala kwa kuwala

Sensa ya ulusi wowala ndi mtundu wa sensa yochokera ku makhalidwe ena a ulusi wowala womwe unapangidwa pakati pa zaka za m'ma 1970. Ndi chipangizo chomwe chimasintha mkhalidwe woyezedwa kukhala chizindikiro choyezera kuwala. Chimakhala ndi gwero la kuwala, sensa, chowunikira kuwala, dera lowongolera ma signal ndi ulusi wowala.

Ili ndi mawonekedwe a kukhudzidwa kwambiri, kukana kusokonezedwa ndi maginito amphamvu, kutchinjiriza bwino magetsi, kusintha kwamphamvu kwa chilengedwe, kuyeza kutali, kugwiritsa ntchito mphamvu zochepa, ndipo ikukula kwambiri pakugwiritsa ntchito intaneti. Mwachitsanzo, hydrophone ya ulusi wowala ndi mtundu wa sensa yamawu yomwe imatenga ulusi wowala ngati chinthu chodziwikiratu, komanso sensa ya kutentha kwa ulusi wowala.

• Sensor ya Mafunde Omveka Pamwamba

Sensa ya Surface Acoustic Wave (SAW) ndi sensa yomwe imagwiritsa ntchito chipangizo cha surface acoustic wave ngati chinthu chodziwira. Chidziwitso choyezedwacho chimawonetsedwa ndi kusintha kwa liwiro kapena kuchuluka kwa mafunde a surface acoustic mu chipangizo cha SURFACE acoustic wave, ndipo chimasinthidwa kukhala sensa yotulutsa chizindikiro chamagetsi. Ndi sensa yovuta yokhala ndi masensa osiyanasiyana. Imakhala ndi sensa yothamanga ya mafunde a surface acoustic, sensa yotenthetsera mafunde a surface acoustic, sensa ya majini a biological wave, sensa ya mpweya wa mankhwala a surface acoustic wave ndi sensa yanzeru, ndi zina zotero.

Kupatula passive optical fiber sensor yokhala ndi mphamvu zambiri, muyeso wa mtunda, makhalidwe a mphamvu zochepa, ma sensor a acoustic wave sensor amagwiritsa ntchito kusintha kwa mafupipafupi a Hui kuganiza kusintha kwa liwiro, kotero kusintha kwa cheke kupita ku muyeso wakunja kungakhale kolondola kwambiri, nthawi yomweyo makhalidwe a voliyumu yaying'ono, kulemera kopepuka, kugwiritsa ntchito mphamvu zochepa kungathandize kuti ikhale ndi mphamvu zabwino zotentha komanso zamakanika, ndipo inayambitsa nthawi yatsopano ya ma sensor ang'onoang'ono opanda zingwe. Imagwiritsidwa ntchito kwambiri m'malo osungira magetsi, sitima, ndege ndi zina.

• Sensor Yopanda Mphamvu Yochokera ku Zida Zamagetsi

Masensa osagwiritsa ntchito mphamvu, monga momwe dzinalo likusonyezera, amagwiritsa ntchito mphamvu yofanana pa moyo kuti asinthe mphamvu zamagetsi, monga mphamvu yowala, mphamvu yotentha, mphamvu yamakina ndi zina zotero. Sensa yosagwiritsa ntchito mphamvu yogwiritsa ntchito mphamvu ili ndi ubwino wa band yotakata, mphamvu yolimbana ndi kusokoneza, kusokoneza kochepa kwa chinthu choyezedwa, kukhudzidwa kwakukulu, ndipo imagwiritsidwa ntchito kwambiri m'magawo oyezera maginito monga magetsi ambiri, mphezi, mphamvu yamagetsi amphamvu, microwave yamphamvu kwambiri ndi zina zotero.

Kuphatikiza kwa Masensa Opanda Mphamvu ndi Maukadaulo Ena

Mu gawo la intaneti ya Zinthu, masensa osagwira ntchito amagwiritsidwa ntchito kwambiri, ndipo mitundu yosiyanasiyana ya masensa osagwira ntchito yafalitsidwa. Mwachitsanzo, masensa ophatikizidwa ndi NFC, RFID komanso wifi, Bluetooth, UWB, 5G ndi ukadaulo wina wopanda zingwe abadwa. Mu passive mode, sensa imapeza mphamvu kuchokera ku ma signali a wailesi omwe ali m'chilengedwe kudzera mu antenna, ndipo deta ya sensa imasungidwa mu kukumbukira kosasinthasintha, komwe kumasungidwa ngati mphamvu siiperekedwa.

Ndipo masensa opanda zingwe opangidwa ndi nsalu pogwiritsa ntchito ukadaulo wa RFID, amaphatikiza ukadaulo wa RFID ndi zinthu zomangira nsalu kuti apange zida zokhala ndi ntchito yozindikira kupsinjika. Sensa ya RFID yomangira nsalu imagwiritsa ntchito njira yolumikizirana ndi kuyambitsa ukadaulo wa tag ya UHF RFID, imadalira mphamvu yamagetsi kuti igwire ntchito, ili ndi mphamvu yochepetsera komanso yosinthasintha, ndipo imakhala njira yosankha zida zovalidwa.

Kumapeto

Passive Internet of Things ndi njira yopititsira patsogolo chitukuko cha intaneti ya Zinthu. Monga ulalo wa passive Internet of Things, zofunikira za masensa sizimangokhala pakugwiritsa ntchito mphamvu zochepa komanso zochepa. Passive Internet of Things idzakhalanso njira yopititsira patsogolo chitukuko yomwe ikufunika kukulitsidwa kwambiri. Ndi kukhwima kosalekeza komanso kupanga zatsopano kwa ukadaulo wa passive sensor, kugwiritsa ntchito ukadaulo wa passive sensor kudzakhala kwakukulu.