Ndeipi musiyano uripo pakati pemuchina wekuongorora ultrasonic level meter nemuchina wekuongorora radar level meter?

Level ndeimwe yenzira dzakakosha dzekutarisa mashandiro emaindasitiri. Mukuyera mazinga akasiyana-siyana ematangi, masilo, madziva, nezvimwewo, zvakaoma kuva nezvishandiso zvakaenzana zvinogona kusangana nemamiriro ese ekushanda nekuda kwemhando dzakasiyana dzemamiriro emunda.

Pakati pazvo, radar ne ultrasonic level gauges zvinoshandiswa zvakanyanya muzvishandiso zvekuyera zvisingabatanidzi kubatana. Saka, musiyano uripi pakati pe radar level meter ne ultrasonic level meter? Ndeipi musimboti wemhando mbiri idzi dzekuyera? Ndezvipi zvakanakira radar level meter ne ultrasonic level meter?

Chekutanga, mita yemazinga e ultrasonic

Kazhinji tinoti mafungu eruzha ane frequency inopfuura 20kHz ultrasonic wave, mafungu e ultrasonic imhando yemafungu emakanika, kureva kuti, mafungu emakanika mu elastic medium mu propagation process, inoratidzwa ne high frequency, short wavelength, small diffraction phenomenon, uye good directionivity, inogona kuva ray uye directional propagation.

Kudzikira kwe ultrasonic muzvinwiwa nezvinhu zvakasimba kudiki kwazvo, saka kugona kwekupinda kwakasimba, kunyanya muzvinyoro zvisina kujeka, ultrasonic inogona kupinda mumakumi emamita pakureba, kusangana netsvina kana ma interfaces kuchave nekutarisa kwakakosha, kuyerwa kwemazinga e ultrasonic ndiko kushandiswa kwechinhu ichi.

Mu tekinoroji yekuona ma ultrasonic, zvisinei nekuti rudzii rwechishandiso che ultrasonic, zvinodiwa kushandura simba remagetsi kuita ultrasonic emission, uye wozogamuchirazve kuita masaini emagetsi, mudziyo wekupedzisa basa iri unonzi ultrasonic transducer, unozivikanwawo se probe.

Pakushanda, transducer ye ultrasonic inoiswa pamusoro pechinhu chakayerwa uye inoburitsa wave ye ultrasonic pasi. Wave ye ultrasonic inopfuura nepakati pemhepo, inodzokororwa kumashure kana yasangana nepamusoro pechinhu chakayerwa, uye inogamuchirwa ne transducer uye inoshandurwa kuita chiratidzo chemagetsi. Mushure mekuona chiratidzo ichi, chikamu che electronic detection chinochishandura kuita chiratidzo che level chekuratidza nekuburitsa.

Mbiri, mita yeradar

Maitiro ekushandisa mita yeradar level akafanana neemita yeradar level, uye mita yeradar level inoshandisawo nzira yekushanda inotumira – kuratidza – kugamuchira. Musiyano ndewekuti kuyerwa kwemita yeradar ultrasonic level kunonyanya kutsamira patransducer yeultrasonic, nepo mita yeradar level ichitsamira pamusoro wefrequency yepamusoro neantenna.

Mamita emagetsi anoshandisa mafungu emagetsi, nepo mamita emagetsi eradar achishandisa mafungu emagetsi emagetsi epamusoro-soro (akawanda kubva kuG kusvika kumakumi eG Hertz). Mafungu emagetsi anofamba nekumhanya kwechiedza, uye nguva yekufamba inogona kushandurwa kuita chiratidzo chemazinga nezvikamu zvemagetsi.

Imwe mita yeradar yakajairika iradar yewave radar inotungamirwa.

Guided wave radar level meter iradar level meter yakavakirwa pa time domain reflectometry (TDR) principle. Electromagnetic pulse yeradar level meter inopararira ichitevedza tambo yesimbi kana probe nekumhanya kwechiedza. Kana ikasangana nepamusoro pe medium yakayerwa, chikamu chepulse yeradar level meter chinoratidzwa kuti chigadzire echo uye chinodzokera kuchishandiso chekuburitsa pulse nenzira imwe chete. Daro riri pakati petransmitter ne medium yakayerwa rinoenderana nenguva yekupararira kwepulse apo kukwirira kwe liquid level kunoverengwa.

Chechitatu, zvakanakira nekuipira kweradar uye ultrasonic level meter

1. Kururama kweUltrasonic hakuna kunaka seradar;

2. Nekuda kwehukama huripo pakati pemafrequency nehukuru hweantenna, mita yeradar ine mafrequency akakwira idiki uye iri nyore kuisa;

3. Nekuti frequency yeradar yakakwira, kureba kwewavelength kupfupi, uye pane kuratidzwa kuri nani panzvimbo dzakatetepa dzakatsveyama;

4. Nzvimbo yekupofumadza inoyerwa neradar idiki pane ultrasonic;

5. Nekuda kwehuwandu hweradar, Angle yeradar beam idiki, simba rayo rakawanda, uye kugona kwe echo kunowedzerwa nepo zvichibatsira kudzivirira kukanganiswa;

6. Zvichienzaniswa nema ultrasonic level metres anoshandisa ma mechanical waves, radar haikanganisike ne vacuum, water vapor iri mumhepo, guruva (kunze kwe graphite, ferroalloy nedzimwe guruva re dielectric), tembiricha nekuchinja kwepressure;