Kodi pali kusiyana kotani pakati pa ultrasonic level mita ndi radar level mita?

Mlingo ndi chimodzi mwazinthu zofunika kwambiri pakuwunika kwamakampani.Pakuyezera mosalekeza kwa akasinja osiyanasiyana, ma silo, maiwe, ndi zina zotero, n’kovuta kukhala ndi zida za mulingo zimene zingakwaniritse mikhalidwe yonse yogwirira ntchito chifukwa cha kusiyanasiyana kwa minda.

Pakati pawo, ma radar ndi ma ultrasonic level gauges amagwiritsidwa ntchito kwambiri mu zida zoyezera zosalumikizana.Ndiye, pali kusiyana kotani pakati pa radar level mita ndi ultrasonic level mita?Mfundo ya miyeso iwiriyi ndi yotani?Kodi ubwino wa radar mlingo mita ndi akupanga mlingo mita?

Choyamba, akupanga mlingo mita

Nthawi zambiri timatcha mafunde omveka ndi ma frequency opitilira 20kHz akupanga mafunde, akupanga yoweyula ndi mtundu wa mafunde opangidwa ndi makina, ndiye kuti, kugwedezeka kwamakina mu zotanuka sing'anga mu njira yofalitsa, imadziwika ndi ma frequency apamwamba, kutalika kwaufupi, kochepa. diffraction phenomenon, ndi kuwongolera bwino, kumatha kukhala kufalikira kwa ray ndi njira.

Akupanga attenuation mu zamadzimadzi ndi zolimba ndi laling'ono kwambiri, kotero malowedwe luso ndi amphamvu, makamaka mu kuwala opaque zolimba, akupanga akhoza kudutsa makumi a mamita m'litali, kukumana zonyansa kapena interfaces adzakhala kwambiri kusinkhasinkha, akupanga mlingo muyeso ndi ntchito yake. izi.

Mu akupanga kudziwika luso, ziribe kanthu mtundu wa akupanga chida, m`pofunika kuti atembenuke magetsi mphamvu mu akupanga umuna, ndiyeno kulandira mmbuyo mu zizindikiro zamagetsi, chipangizo kumaliza ntchito imeneyi amatchedwa akupanga transducer, amatchedwanso kafukufuku.

Pogwira ntchito, ultrasound transducer imayikidwa pamwamba pa chinthucho ndipo imatulutsa mafunde akupanga pansi.The akupanga yoweyula akudutsa sing'anga mlengalenga, zimasonyeza mmbuyo pamene akukumana pamwamba pa chinthu kuyezedwa, ndipo analandira ndi transducer ndi kusandulika chizindikiro magetsi.Pambuyo pozindikira chizindikiro ichi, gawo lodziwikiratu lamagetsi limasandulika kukhala siginecha yowonetsera ndi kutulutsa.

Awiri, radar level mita

Njira yogwiritsira ntchito radar mlingo mita ndi yofanana ndi ya akupanga mlingo wa mita, ndi radar mlingo mita amagwiritsanso ntchito kufalitsa – kuwonetsera – kulandira akafuna ntchito.Kusiyana kwake ndikuti kuyeza kwa radar akupanga mlingo mita makamaka kumadalira akupanga transducer, pamene radar mlingo mita amadalira mkulu-pafupipafupi mutu ndi mlongoti.

Mamita a Ultrasonic level amagwiritsa ntchito mafunde amakina, pomwe ma radar level mita amagwiritsa ntchito mafunde apamwamba kwambiri (ma G angapo mpaka makumi a G Hertz) mafunde amagetsi.Mafunde a electromagnetic amayenda pa liwiro la kuwala, ndipo nthawi yoyenda imatha kusinthidwa kukhala chizindikiro cha mulingo ndi zida zamagetsi.

Mita ina yodziwika bwino ya radar ndi mita yowongolera yowongolera.

Guided wave radar level mita ndi mita ya radar yotengera mfundo ya time domain reflectometry (TDR).Kuthamanga kwamagetsi kwa mita ya radar kumafalikira pa chingwe chachitsulo kapena kufufuza pa liwiro la kuwala.Ikakumana ndi pamwamba pa sing'anga yoyezera, gawo la kugunda kwa mita ya radar limawonetsedwa kuti lipange echo ndikubwerera ku chipangizo choyambitsa pulse panjira yomweyo.Mtunda pakati pa chopatsira ndi choyezera sing'anga pamwamba ndi molingana ndi nthawi yofalikira ya kugunda komwe mulingo wamadzimadzi umawerengedwa.

Chachitatu, ubwino ndi kuipa kwa radar ndi akupanga mlingo mita

1. Kulondola kwa Ultrasonic sikuli bwino ngati radar;

2. Chifukwa cha kugwirizana pakati pa mafupipafupi ndi kukula kwa mlongoti, mita ya mlingo wa radar ndi maulendo apamwamba ndi ochepa komanso osavuta kukhazikitsa;

3. Chifukwa mafupipafupi a radar ndi apamwamba, kutalika kwa mafunde kumafupikitsa, ndipo pali kuwunikira bwino pa malo olimba opendekeka;

4. Malo akhungu a radar ndi ochepa kuposa akupanga;

5. Chifukwa cha maulendo apamwamba a radar, Angle ya radar ndi yaying'ono, mphamvu imakhala yokhazikika, ndipo mphamvu ya echo imalimbikitsidwa pamene imathandizira kupewa kusokoneza;

6. Poyerekeza ndi akupanga mlingo mamita pogwiritsa ntchito mafunde mawotchi, radar kwenikweni samakhudzidwa ndi vacuum, nthunzi wa madzi mu mlengalenga, fumbi (kupatula graphite, ferroalloy ndi zina mkulu dielectric fumbi), kutentha ndi kuthamanga kusintha;