Miyeso ya radar ndi zida zofunika kwambiri poyezera mulingo wa mafakitale, zomwe nthawi zambiri zimagawidwa m'magulu a mita ya radar yosakhudzana ndi kukhudzana (yomwe imatchedwa "mita ya radar") ndi mita ya radar yotsogozedwa (mtundu wa kukhudzana). Zonsezi zimagwira ntchito kutengera mfundo zowunikira ma microwave, koma makhalidwe awo ndi zochitika zomwe zimagwira ntchito zimasiyana kwambiri chifukwa cha njira zosiyanasiyana zofalitsira zizindikiro. Nazi zinthu zazikulu za mtundu uliwonse:
I. Makhalidwe a Ma Radar Level Meters (Osakhudzana ndi Ma Radar)
Mamita a radar osakhudzana ndi magetsi amatulutsa zizindikiro za microwave kuchokera ku antenna kupita pamwamba pa chida choyezera. Zizindikirozo zimawonetsedwa ndi chidacho ndikulandiridwa ndi antenna, ndipo kutalika kwa milingo kumawerengedwa pogwiritsa ntchito ukadaulo wa "kusiyana kwa nthawi" kapena ukadaulo wa "Frequency-Modulated Continuous Wave (FMCW)". Makhalidwe awo ofunikira ndi awa:
1. Kuyeza Mosakhudzana ndi Kuyeza Moyenera ndi Chitetezo Chabwino ndi Ukhondo
- Palibe Kukhudzana ndi Pakati: Sensayi siikhudzana ndi chinthu choyezedwacho, zomwe zimachotsa zoopsa za dzimbiri, kuwonongeka, kusonkhanitsa zinthu, kapena kuipitsidwa komwe kumachitika chifukwa cha chinthucho.
- Kutsatira Ukhondo Kwambiri: Ndikoyenera makampani omwe ali ndi zofunikira kwambiri paukhondo monga chakudya, zakumwa ndi mankhwala (omwe akukwaniritsa miyezo monga FDA ndi 3-A), kupewa nkhawa zokhudzana ndi kutayika kwa zinthu zoyezera kapena kuipitsidwa kwa zinthu zoulutsira nkhani.
2. Kukhazikitsa Kosinthasintha ndi Ndalama Zochepa Zokonzera
- Kukhazikitsa Kosavuta: Kawirikawiri imayikidwa pamwamba pa matanki, osafuna kulowetsedwa mu sing'anga ndipo siimayambitsa kusokoneza kapangidwe ka thanki yamkati. Yoyenera makamaka kuyika matanki omwe alipo kale kapena matanki akuluakulu osungiramo zinthu (palibe chifukwa chobowola kapena kusintha thanki).
- Zosowa Zochepa Zokonza: Kusasuntha ziwalo komanso kusakhudzana ndi sing'anga kumachepetsa ntchito yokonza yomwe imachitika chifukwa cha kusungunuka, kutsekeka, kapena kuwonongeka, zomwe zimawonjezera nthawi yogwira ntchito.
3. Yosinthika ku Zida Zambiri Zolumikizirana Koma Yosavuta Kusokoneza Zachilengedwe
- Kugwirizana Kwambiri kwa Pakati: Kutha kuyeza zakumwa, tinthu tolimba (monga ma pellets apulasitiki, tirigu), ndi slurry. Makamaka yoyenera kwambiri pazinthu zokhuthala kwambiri (monga uchi, utomoni), zinthu zowononga kwambiri (monga asidi/alkaline solutions), kapena zinthu zosinthasintha.
- Kuzindikira Zachilengedwe: Zizindikiro za microwave zimatha kukhudzidwa ndi zinthu zachilengedwe monga nthunzi, fumbi, thovu, ndi nkhungu panthawi yofalikira, zomwe zingafooketse kapena kusokoneza zizindikiro zomwe zimawonetsedwa. Mapangidwe a ma frequency apamwamba (monga, 26GHz, 80GHz), ma antenna apadera (monga, ma antenna a horn, ma antenna a parabolic), kapena ukadaulo wosefera ma signal amagwiritsidwa ntchito kupititsa patsogolo luso loletsa kusokoneza.
4. Kuyeza Konse, Kulondola Komwe Kumakhudzidwa ndi Dielectric Constant
- Kuchuluka kwa Miyeso: Kuchuluka kwa miyeso yanthawi zonse kumafika 0.1m–100m, ndipo mitundu ina imaphimba matanki akuluakulu osungiramo zinthu kapena ziwiya zotseguka.
- Kudalira Dielectric Constant: Dielectric constant yapamwamba (εᵣ) ya sing'anga imabweretsa zizindikiro zowala kwambiri (monga madzi okhala ndi εᵣ≈80 amakhala ndi zowala kwambiri). Zowala zochepa za dielectric constant (monga mafuta okhala ndi εᵣ≈2, mpweya wa petroleum wosungunuka wokhala ndi εᵣ≈1.5) zimapangitsa kuti zowalazo zisamawoneke bwino, zomwe zingachepetse kulondola kwa muyeso (kuwonjezeka ndi radar yapamwamba kapena ma antenna owonjezereka).
Zoletsa
- N'kovuta kuyeza zolumikizira zamagetsi ndi ma dielectric constants otsika kwambiri (εᵣ<1.5) ndipo nthawi zambiri zimasokonezedwa ndi ma echo abodza (monga, ma reflections ochokera ku makoma a thanki kapena ma agitators).
- Mu nyengo zovuta zomwe zili ndi fumbi lolemera, nthunzi yambiri, kapena thovu lokhuthala, ma antenna owonjezera osagwira fumbi/chifunga kapena zida zotsukira amafunika; apo ayi, kulondola kungachepe.
II. Makhalidwe a Mamita a Radar a Mafunde Otsogozedwa
Mamita a radar otsogozedwa amatumiza zizindikiro za microwave kudzera m'ma probe achitsulo (ma waveguides, zingwe, kapena zingwe za coaxial). Zizindikiro zimaonekera pakati pa sing'anga ndi mpweya, ndipo mulingo umawerengedwa pofufuza kuwunikira kumeneku. Makhalidwe awo ofunikira ndi awa:
1. Kuyeza Kukhudzana ndi Mphamvu Yamphamvu Yoletsa Kusokoneza
- Kufalitsa Zizindikiro Zotsogolera: Ma microwave amayenda motsatira chowunikira chotsogozedwa, kuyika mphamvu ndikuchepetsa kusokonezeka kwa zinthu zachilengedwe monga nthunzi, fumbi, thovu, kapena kugwedezeka. Zizindikiro zowunikira zokhazikika zimasungidwa ngakhale mu thovu lokhuthala kapena munyengo yogwedezeka mwamphamvu.
- Yoyenera pa Mavuto Ovuta: Yothandiza makamaka pa zinthu zokhuthala kwambiri (monga zofukiza mowa, zotsukira), zinthu zokhuthala zokhala ndi tinthu tomwe timapachikidwa (monga madzi a zipatso, slurry), kapena zinthu zokhazikika zochepa (monga mafuta opepuka, mpweya wosungunuka), kuthetsa vuto la kuchepa kwa chizindikiro mu radar yosakhudzana ndi kukhudzana.
2. Kulondola Kwambiri ndi Kukhazikika
- Zizindikiro Zowunikira Molunjika: Chowunikira chotsogozedwa chimayika mphamvu ya microwave pamwamba pa sing'anga, zomwe zimapangitsa kuti ziwunikire mwamphamvu komanso mokhazikika. Kulondola kwa muyeso nthawi zambiri kumafika ± 0.05%FS ndipo kubwerezabwereza bwino kwambiri (± 0.02%FS).
- Osakhudzidwa ndi Malo a Tanki: Oyenera matanki ang'onoang'ono, zombo zosaoneka bwino, kapena matanki okhala ndi zopinga zamkati (monga zoyambitsa, zosokoneza), chifukwa chofufuzira chimafalitsa zizindikiro paokha popanda kusokonezedwa ndi kapangidwe ka thanki.
3. Kukhazikitsa ndi Kusamalira Zosinthidwa Kuti Zigwirizane ndi Malo Apakatikati
- Njira Zoyikira: Ma probe ayenera kuyikidwa mu sing'anga. Kusankha zinthu (monga chitsulo chosapanga dzimbiri cha 316L, chophimba cha PTFE) ndi mtundu wa probe (mtundu wa ndodo ya zakumwa zokhuthala pang'ono, mtundu wa chingwe cha matanki okhuthala kwambiri kapena akuya, mtundu wa coaxial wa ma dielectric constant media otsika) zimadalira kukhuthala kwapakati komanso kuwononga.
- Zinthu Zofunika Kuziganizira Pokonza: Kukhudzana ndi malo olumikizirana kungayambitse kusonkhana kwa zinthu (malo olumikizirana kwambiri), dzimbiri (malo olumikizirana kwambiri), kapena kukula kwa zinthu. Kuyeretsa nthawi zonse kumafunika kuti zizindikiro zisasokonekere, ndipo kumafufuza zoopsa zoti zinthu zisawonongeke (mapangidwe oletsa kugundana amafunika m'malo osokonezeka).
4. Kugwirizana kwa Pakati ndi Kwachilengedwe
- Kugwirizana kwapakati: Koyenera zakumwa, slurry, ndi tinthu tolimba, makamaka tomwe timakhala ndi dielectric constant yochepa (εᵣ≥1.8), high-viscosity (monga phula, madzi), kapena zinthu zopangika mosavuta (monga caustic soda solutions).
- Kusinthasintha kwa Zachilengedwe: Imapirira kutentha kwambiri (-50℃ ~ 400℃) ndi kupsinjika (mpaka 40MPa), zomwe zimapangitsa kuti ikhale yoyenera malo owopsa monga zomera za petrochemical ndi minda yosungiramo zinthu.
Zoletsa
- Kuyeza kwa kukhudzana kumachepetsa kugwiritsidwa ntchito kwake pazochitika zaukhondo kwambiri (monga mankhwala osapha tizilombo toyambitsa matenda) chifukwa cha zofunikira zoyeretsera pafupipafupi.
- Kutalika kwa chofufuzira kumakhala kokhazikika, zomwe zimapangitsa kuti muyeso wake ukhale wocheperako (nthawi zambiri mpaka 30m), zomwe zimapangitsa kuti chisakhale choyenera kugwiritsidwa ntchito m'mitsempha yotseguka kwambiri.
- Chophimba cholimba kwambiri kapena cholimba mosavuta chingayambitse kusungunuka kwa chofufuzira, zomwe zimakhudza kulondola; chophimba cholimba kwambiri chimafuna zipangizo zodula zotsutsana ndi dzimbiri.
III. Chidule Choyerekeza cha Makhalidwe Aakulu
| Kuyerekeza Kukula | Chiyeso cha Radar Level (Chosakhudzana ndi Kukhudza) | Chiyeso cha Rada ya Mafunde Otsogozedwa |
|---|---|---|
| Njira Yoyezera | Kusakhudzana (ma microwave amafalikira kudzera mumlengalenga) | Mtundu wokhudzana (ma microwave amafalikira motsatira ma probes) |
| Kutha Kuletsa Kusokoneza | Imakhudzidwa ndi nthunzi, thovu, fumbi; imakonzedwa bwino ndi ma antenna apadera/othamanga kwambiri | Choletsa kwambiri kusokoneza; sichikhudzidwa ndi thovu, nthunzi, kapena kugwedezeka |
| Ukhondo | Palibe kukhudzana, ukhondo uli pamwamba; yoyenera chakudya/mankhwala | Kukhudza pakati; kumakhala kochepa pazochitika zaukhondo wambiri chifukwa cha kuyeretsa pafupipafupi |
| Kulondola kwa Muyeso | ± 0.1%~± 0.5%FS (yomwe imakhudzidwa ndi chilengedwe ndi chokhazikika cha dielectric) | ±0.05%~±0.1%FS (zizindikiro zokhazikika, kulondola kwambiri) |
| Ndalama Zokonzera | Zochepa (zosakhudzana, zosavala) | Yapakatikati (imafuna kuyeretsa probe, kupewa dzimbiri/kumanga) |
| Zofalitsa Zoyenera | Zimawononga kwambiri, zimakhala zokhuthala kwambiri, komanso zimakhala zaukhondo (zimapewa kuipitsidwa ndi zinthu zolumikizana nazo) | Chosasinthika cha dielectric chochepa, chodzaza ndi thovu, chokhala ndi tinthu tating'onoting'ono; mikhalidwe yovuta |
| Zoletsa Zokhazikitsa | Imafuna malo pamwamba pa thanki; sikufunika kuyikapo | Imafuna kuyikapo probe; imachepetsedwa ndi kapangidwe ka mkati mwa thanki ndi kutalika kwa probe |
Mapeto
Mamita a radar osakhudzana ndi magetsi amapambana kwambiri pa ntchito yosakhudzana ndi magetsi, ukhondo wapamwamba, komanso kusakonza bwino, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito pa thanki yayikulu yaukhondo, yowononga, kapena yogwiritsidwa ntchito pa thanki yayikulu. Radar ya mafunde yotsogozedwa, yokhala ndi mphamvu yoletsa kusokonezedwa, yolondola kwambiri, komanso yosinthika kuzinthu zovuta, imakondedwa pazochitika zokhala ndi thovu, magetsi otsika a dielectric, kapena matanki ang'onoang'ono/osakhazikika. Kusankha koyenera kuyenera kuganizira za makhalidwe apakati (kukhuthala, kuwonongeka, magetsi), mikhalidwe ya chilengedwe (nthunzi, fumbi, kupanikizika), ndi zofunikira za ukhondo.
Nthawi yotumizira: Julayi-22-2025