FDR ndiyo njira yeniyeni yogwiritsira ntchito ukadaulo wodziwika bwino kwambiri woyezera chinyezi cha nthaka pakadali pano. Imapeza madzi ambiri m'nthaka mwachindunji komanso mwachangu poyesa chokhazikika cha dielectric (capacitance effect). Mfundo yake ndi kutulutsa chizindikiro cha mafunde a electromagnetic cha ma frequency enaake (nthawi zambiri 70-150 MHz) mu electrode (probe) yomwe yalowetsedwa m'nthaka, ndikuyesa ma frequency a resonant kapena kusintha kwa impedance komwe kumatsimikiziridwa ndi mphamvu za dielectric za nthaka, potero kuwerengera chokhazikika cha dielectric ndi chinyezi.
Izi ndi zinthu zatsatanetsatane za sensa ya nthaka ya FDR:
Mphamvu ndi ubwino wapakati
Muyeso wake ndi wachangu, wopitilira komanso wodziyimira pawokha
Imatha kuyeza mosalekeza pamlingo wachiwiri kapena mwachangu kwambiri, zomwe zimapangitsa kuti ikhale yoyenera kwambiri pazochitika zomwe zimafuna kujambulidwa kwa deta kwakanthawi kochepa, kuwongolera kuthirira kokha, komanso kafukufuku wa njira zosinthira.
Kuchita bwino kwambiri komanso kosavuta kutchuka
Poyerekeza ndi masensa a TDR (Time Domain Reflectometry) olondola komanso okwera mtengo, kapangidwe ndi kupanga kwa FDR circuit ndi kosavuta, ndipo mtengo wake umachepetsedwa kwambiri, zomwe zimapangitsa kuti ikhale chisankho chabwino kwambiri chogwiritsidwa ntchito m'magawo akuluakulu monga ulimi wanzeru komanso kusamalira malo.
Kugwiritsa ntchito mphamvu zochepa kwambiri
Mphamvu yomwe imagwiritsidwa ntchito pa dera loyezera ndi yotsika kwambiri, nthawi zambiri imangofunika mphamvu yamagetsi ya milliampere, zomwe zimapangitsa kuti ikhale yoyenera kwambiri pa malo owunikira malo ndi makina a intaneti a Zinthu omwe amagwiritsidwa ntchito ndi mabatire ndi ma solar panels kwa nthawi yayitali.
Chofufuzirachi chapangidwa mosavuta komanso chosavuta kuyika
Ma probe amabwera m'njira zosiyanasiyana (monga mtundu wa ndodo, mtundu wa kubowola, mtundu wa mbiri yozama kwambiri, ndi zina zotero), ndipo amangofunika kulowetsedwa m'nthaka. Sawononga kwambiri kapangidwe ka nthaka ndipo ndi osavuta kuyika.
Ili ndi bata labwino komanso chitetezo champhamvu
Ilibe zinthu zowononga ma radiation (mosiyana ndi ma neutron mita), ndi yotetezeka kugwiritsa ntchito, ndipo zida zake zamagetsi zimagwira ntchito bwino, zomwe zimapangitsa kuti igwire ntchito kwa nthawi yayitali.
Zosavuta kuphatikiza ndi kulumikizana
Ndi yogwirizana mwachilengedwe ndi zomangamanga zamakono za intaneti ya zinthu ndipo imatha kuphatikiza mosavuta ma module ojambulira deta ndi ma module otumizira opanda zingwe kuti ipange netiweki yayikulu yowunikira chinyezi cha nthaka.
Zolepheretsa zazikulu ndi zovuta
Kulondola kwa muyeso kumakhudzidwa ndi makhalidwe osiyanasiyana a nthaka (zolepheretsa zazikulu)
Kapangidwe ka nthaka ndi kuchuluka kwa nthaka: Ubale (calibration curve) pakati pa dielectric constant ndi kuchuluka kwa madzi umasiyana pakati pa nthaka yokhala ndi dongo, mchenga, ndi zinthu zachilengedwe zosiyanasiyana. Mafomula owerengera zinthu angayambitse zolakwika.
Kuyendetsa magetsi m'nthaka (mchere): Ichi ndi chimodzi mwazinthu zofunika kwambiri zomwe zimakhudza kulondola kwa FDR. Ma ayoni oyendetsera mpweya m'nthaka amatha kupangitsa kuti mphamvu ya chizindikiro itayike, zomwe zimapangitsa kuti muyeso wa dielectric ukhale wokwera kwambiri motero kuwerengera kuchuluka kwa madzi m'nthaka. M'nthaka ya saline-alkali, cholakwika ichi chingakhale chachikulu kwambiri.
Kutentha: Chokhazikika cha dielectric cha nthaka chimakhudzidwa ndi kutentha. Ma model apamwamba ali ndi masensa otenthetsera omwe amamangidwa mkati kuti athandizire, koma izi sizingathetsedwe kwathunthu.
Kukhudzana pakati pa choyezera ndi nthaka: Ngati pali mpata wotsala kapena kukhudzana sikuli kolimba panthawi yoyika, zidzasokoneza kwambiri muyeso.
Kuyesa pamalopo kuyenera kuchitika kuti zinthu ziyende bwino kwambiri
Kuyesa mafakitale nthawi zambiri kumadalira njira yokhazikika (monga mchenga ndi dothi). Kuti mupeze miyezo yodalirika, kuyeza komwe kuli pamalopo kuyenera kuchitika m'nthaka yomwe mukufuna (ndiko kuti, poyerekeza ndi miyezo yoyezedwa ya njira yowumitsa ndikukhazikitsa equation ya calibration yakomweko). Iyi ndi sitepe yofunika kwambiri kuti zitsimikizire mtundu wa kafukufuku wasayansi ndi kasamalidwe kolondola ka deta, komanso kumawonjezera mtengo wogwiritsira ntchito komanso malire aukadaulo.
Mulingo woyezera ndi chidziwitso cha "malo" am'deralo
Malo ofunikira a sensa nthawi zambiri amakhala ndi dothi lokwana masentimita angapo kuzungulira probe. Kuti mudziwe kusiyana kwa malo a malo akuluakulu, ndikofunikira kupanga malo oyenera okhala ndi mfundo zambiri.
Kukhazikika kwa nthawi yayitali komanso kusuntha
Pambuyo poika chitsulo m'manda kwa nthawi yayitali, chitsulo chofufuzira chingayambitse kuti miyeso iyende chifukwa cha dzimbiri lamagetsi kapena kuipitsidwa, ndipo kuyang'anitsitsa nthawi zonse ndi kubwezeretsanso ndikofunikira.
Zochitika zomwe zingagwiritsidwe ntchito
Zochitika zoyenera kwambiri
Ulimi wolondola komanso kuthirira mwanzeru: Kuyang'anira momwe nthaka imagwirira ntchito, kukonza bwino zisankho zothirira, komanso kukwaniritsa kusunga madzi ndikuwongolera magwiridwe antchito.
Kafukufuku wa zachilengedwe ndi zamadzi: Kuyang'anira nthawi yayitali kusintha kwa chinyezi m'nthaka.
Kusamalira bwalo la gofu ndi munda: Zosewerera zazikulu za makina othirira okha.
Kuwunika masoka a nthaka: Kumagwiritsidwa ntchito pochenjeza msanga kuchuluka kwa madzi m'madzi powunika kukhazikika kwa mapiri.
Zochitika zomwe ziyenera kusamala kapena njira zopewera ziyenera kutengedwa:
Pa nthaka yokhala ndi mchere kapena yotulutsa mpweya wambiri: Ma model okhala ndi ntchito zochepetsera mchere ayenera kusankhidwa ndipo kuwunikira koyenera pamalopo kuyenera kuchitika.
Muzochitika zomwe pali zofunikira zalamulo kapena kafukufuku kuti pakhale kulondola kotheratu: Ndikofunikira kuyerekeza ndikuwongolera ndi TDR kapena njira zowumitsa, ndipo kuwunika nthawi zonse kuyenera kuchitika.
Chidule
Zipangizo zoyezera nthaka za FDR, zomwe zimakhala ndi mtengo wabwino kwambiri, mphamvu zochepa komanso zosavuta kugwiritsa ntchito, zakhala ukadaulo woyezera chinyezi cha nthaka womwe umagwiritsidwa ntchito kwambiri paulimi wamakono komanso kuyang'anira chilengedwe. Kwenikweni ndi "katswiri wodziwa bwino ntchito pamalopo".
Zinthu zazikulu zitha kufotokozedwa mwachidule motere:
Ubwino: Yachangu, yopitilira, yotsika mtengo, yogwiritsa ntchito mphamvu zochepa, komanso yosavuta kugwiritsa ntchito pa intaneti.
Zoletsa: Kulondola kumakhudzidwa mosavuta ndi mchere, kapangidwe ndi kutentha kwa nthaka, ndipo kuyeza pamalopo kumafunika kuti zitsimikizidwe kuti ndi zolondola.
Mwa kumvetsetsa bwino makhalidwe ake ndikuwongolera zolakwika zake kudzera mu kapangidwe ka mfundo zasayansi ndi kuwerengera kofunikira, masensa a FDR amatha kupereka chidziwitso chamtengo wapatali kwambiri pa chinyezi cha nthaka ndipo ndi zida zofunika kwambiri pakuwongolera bwino madzi ndi chitukuko cha ulimi wa digito.
Kuti mudziwe zambiri zokhudza sensa ya nthaka, chonde lemberani Honde Technology Co., LTD.
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Nthawi yotumizira: Disembala-12-2025