Ndeupi musiyano uripo pakati pe ultrasonic level mita uye radar level mita?

Level ndeimwe yeakakosha tarisiro maparamita eindasitiri process yekutarisa.Muyero inoenderera mberi yekuyera matangi akasiyana-siyana, silos, madziva, nezvimwewo, zvakaoma kuva nezviridzwa zvine mwero zvinokwanisa kusangana nemamiriro ese ekushanda nekuda kwekusiyana kwakasiyana kwemamiriro emunda.

Pakati pavo, radar uye ultrasonic level gauges anoshandiswa zvakanyanya mune zvisiri zvekubatana zvekuyeresa zviridzwa.Saka, ndeupi musiyano uripo pakati pe radar level mita uye ultrasonic level mita?Ndeupi musimboti wemhando mbiri idzi dzekuyera?Ndezvipi zvakanakira radar level mita uye ultrasonic level mita?

Kutanga, ultrasonic level mita

Isu tinowanzo kudaidza iyo ruzha wave ine frequency inodarika 20kHz ultrasonic wave, ultrasonic wave imhando yema mechanical wave, kureva kuti, mechanical vibration mune elastic medium mukuparadzira, inoratidzwa nehupamhi hwepamusoro, hupfupi wavelength, diki. diffraction phenomenon, uye yakanaka yakananga, inogona kuve ray uye inotungamira kuparadzira.

Ultrasonic attenuation mune zvinwiwa uye yakasimba idiki kwazvo, saka kugona kwekupinda kwakasimba, kunyanya muchiedza opaque solids, ultrasonic inogona kupinza makumi emamita pakureba, kusangana nekusachena kana kupindirana kuchave kwakakura kuratidza, ultrasonic level kuyerwa ndiko kushandiswa kwayo. chimiro ichi.

Mu ultrasonic yekuona tekinoroji, zvisinei kuti rudzii rwechiridzwa che ultrasonic, chinodiwa kushandura simba remagetsi kuita ultrasonic emission, uye wozogamuchira zvakare mumagetsi masaini, mudziyo wekupedzisa basa iri unonzi ultrasonic transducer, inozivikanwawo se probe.

Paunenge uchishanda, iyo ultrasonic transducer inoiswa pamusoro pechinhu chakayerwa uye inoburitsa ultrasonic wave pasi.Iyo ultrasonic wave inopfuura nepakati pemhepo, inoratidzwa kumashure kana inosangana nepamusoro pechinhu chakayerwa, uye inogamuchirwa ne transducer uye inoshandurwa kuita chiratidzo chemagetsi.Mushure mekuona chiratidzo ichi, chikamu chemagetsi chekuona chinochishandura kuita chiyero chechiratidzo chekuratidzwa uye kubuda.

Chechipiri, radar level mita

Maitiro ekushandisa eiyo radar level mita yakafanana neyeiyo ultrasonic level mita, uye iyo radar level mita inoshandisawo kutapurirana - kuratidza - kugamuchira maitiro ekushanda.Musiyano ndewekuti kuyerwa kweiyo radar ultrasonic level meter inonyanya kutsamira pane iyo ultrasonic transducer, nepo radar level mita inotsamira pane yakakwira-frequency musoro uye antenna.

Ultrasonic level metres anoshandisa mafungu emagetsi, nepo radar level metres anoshandisa ekupedzisira-akakwira frequencies (anoverengeka G kusvika makumi eG Hertz) emagetsi mafungu.Electromagnetic waves anofamba nekumhanya kwechiedza, uye nguva yekufamba inogona kushandurwa kuita nhanho chiratidzo nemagetsi zvikamu.

Imwe yakajairika radar level mita ndeye inotungamirwa wave radar level mita.

Inotungamirwa wave radar level mita ndeye radar level mita yakavakirwa pane iyo nguva domain reflectometry (TDR) musimboti.Iyo electromagnetic pulse yeradar level mita inopararira pamwe netambo yesimbi kana probe nekumhanya kwechiedza.Kana yasangana nepamusoro peiyo yakayerwa svikiro, chikamu chekupomba kwemita yeradar inotaridzwa kuita maungira uye inodzokera kumudziyo wekuvhura pulse munzira imwechete.Chinhambwe chiri pakati pemupepeti uye chakayerwa chepakati pepamusoro chinoenzana nenguva yekuparadzira yepuruzi panguva inoverengerwa kureba kweyero yemvura.

Chechitatu, zvakanakira uye zvakaipira radar uye ultrasonic level mita

1. Ultrasonic yakarurama haina kufanana ne radar;

2. Nekuda kwehukama pakati pe frequency neantenna size, iyo radar level mita ine yakakwirira frequency idiki uye nyore kuisa;

3. Nemhaka yekuti radar frequency yakakwira, urefu hwewavelength ipfupi, uye pane ratidziro iri nani pane yakarereka yakasimba nzvimbo;

4. Radar kuyerwa bofu nzvimbo idiki pane ultrasonic;

5. Nekuda kweiyo radar frequency, iyo radar danda Angle idiki, simba rinoiswa, uye kugona echo kunowedzera apo iyo inobatsira kudzivirira kupindira;

6. Kuenzaniswa ne ultrasonic level mamita uchishandisa mafungu emagetsi, radar haisi kunyanya kukanganiswa nevhavha, mhute yemvura mumhepo, guruva (kunze kwegraphite, ferroalloy uye mamwe guruva rakakwirira re dielectric), tembiricha uye kudzvinyirira kuchinja;