Kuroverera kwekukanganisa kwekumanikidza sensor

Kureruka kwekukanganisa kweDzvinyiriro Sensorsndiyo kiyi yekushandisa kwavo. Dzvinyiriro sensors inonyanya kuve nekukanganisa kukanganisa, kukanganisa kukanganisa, hystesis kukanganisa, uye mutsara kukanganisa. Chinyorwa ichi chinosvitsa michina yezvikanganiso izvi zvina uye kukanganisa kwavo pane mhinduro dzekuyedza. Panguva imwecheteyo, ichasvitsa nzira dzekumanikidza dzinoshanda uye mienzaniso yekushandisa kugadzirisa kuyera kwechiyero.

Parizvino, kune akasiyana siyana sensors pamusika, iyo inobvumira mainjiniya ekugadzira kuti vasarudze kudzvinyirira sensors inodiwa kuti system. Aya ma sensors anosanganisira ese ari maviri akanyanya ekutanga shanduko uye akaomesesa nzvimbo dzekubatanidza zvakanyanya ne-chip matunhu. Nekuda kwemisiyano iyi, mainjiniya ekugadzira anofanirwa kuedza kudzorera zvikanganiso mukumanikidza sensors, iyo inhanho yakakosha mukuona kuti sensors sensele uye zvinodiwa zvekushandisa. Mune zvimwe zviitiko, muripo unogona zvakare kuvandudza mashandiro ezvekuita sensors mukushandisa.

Pfungwa dzinokurukurwa muchinyorwa ichi dzinoshanda kune dhizaini uye kushandiswa kwe akasiyana siyana ekumanikidza sensors, ayo ane zvikamu zvitatu:

1. Basic kana isina kugadziriswa calibration;

2. Kune calibration uye tembiricha yekupa muripo;

3. Iyo ine calibration, muripo, uye kukwidziridzwa.

Offset, renji calibration, uye tembiricha yekubhadhara inogona kuve yakawanikwa kuburikidza yakaonda firimu reseror network, iyo ishandise laser kururamisa panguva yekuisa. Iyi sensor inowanzoshandiswa pamwe chete neye microcontroller, uye iyo yakabatanidzwa software ye microconsroller pachayo inosimbisa iyo yemasvomhu yemhando yemasvomhu. Mushure mekunge micrococoller inoverenga voltage yekuburitsa, iyo modhi inogona kushandura voltage mukudzvinyirira kuyera kukosha kuburikidza nekushandurwa kweAnalog-to-digital shanduro.

Iyo yakapusa yemasvomhu yemhando ye sensors ndiko kuendesa basa. Iyo modhi inogona kuongororwa mumamiriro ese ezvinhu rese, uye kukura kwaro kuchawedzera nekuwedzera kwemakona ekusagadzikana.

Kubva pane imwe nzira yekufungidzira, kukanganisa kwekuyera kune tsananguro yakasarudzika: inoratidzira mutsauko uripo pakati pekumanikidzwa kwekuyera nekumanikidzwa chaiko. Nekudaro, hazviwanzo kuitika kuwana zvakananga kumanikidzwa chaiko, asi kunogona kufungidzirwa nekushandisa zvakakodzera kumanikidzwa maitiro. Metrologists anowanzo shandisa zviridzwa nekunyatso kanokwana kanokwana kanokwana kupfuura michina yakayerwa seyekuyerwa zviyero.

Nekuda kwekuti izvo zvisina kujairika masisitimu anogona chete kuchinjisa kubuda kwekutsamwisa uchishandisa chaiyo sensitivity uye offset tsika.

Ichi chikanganiso chisina kujairika chekutanga chine zvikamu zvinotevera:

1. Sensitivity kukanganisa: Hukuru hwekanganiso yakaburitswa inoenderana nekumanikidzwa. Kana iyo sensitivity yemushini yakakwira kupfuura kukosha kwayo, kukanganisa kwekunzwa kuchave kuri kuwedzera basa rekumanikidzwa. Kana iyo sensitivity yakaderera pane yakajairika kukosha, kukanganisa kwekunzwa kuchave kuderera kwekumanikidzwa. Icho chikonzero chekukanganisa uku nekuda kwekuchinja mukuita kwakashata.

2..

3.. Kazhinji, kukanganisa kwekushivirira kunoda kufungidzirwa mumamiriro ezvinhu mune shanduko yakakosha mukumanikidzwa.

4 Nekudaro, kune sensors ine amplifiers, iyo isiri yeiyo amplifier inofanirawo kuverengerwa. Iyo linear kukanganisa curve inogona kuve curve curve kana convex curve.

Calibration inogona kubvisa kana kuderedza izvi zvikanganiso, nepo nzira dzekumanikidza kazhinji dzinoda kuongorora paramita reiyo chaiyo yekufambisa basa, pane kungoshandisa maitiro chaiwo. Potkoters, anogadzirisa resters, uye mamwe maHardware anogona kushandiswa zvese mune yekubhadhara maitiro, nepo software inogona kuwedzera kuita basa rekutadza basa rekukanganisa.

Iyo imwe pfungwa yeCalibration nzira inogona kudzoreredza zvikanganiso zvekubvisa nekubvisa kudhirowa kuZero point yekunamatira, uye iyi mhando yeCalibration nzira inonzi otomatiki zeroing. Kugadzirisa calibration kunowanzoitwa ku zero kumanikidzwa, kunyanya mune dzakasiyana sensors, sekumanikidzwa kusiyanisa kazhinji 0 pasi pemamiriro ezvinhu anokosha. Kune vakachena sensors, kudzikisira kwakaoma nekuti kungave kunoda kuti inyore yekuverenga system kuyera kukosha kwayo kwekumanikidzwa kwemamiriro ekunze, kana yekumanikidza kudzvinyirira kuti uwane kumanikidza kwaunoda.

Iyo zero kumanikidza calibration yemusiyano sensors ndeyechokwadi nekuti kudzvinyirira kwakanyanyisa zero. Kune rimwe divi, kunyatsoita kwekunyora kana kudzvinyirira kusiri zero kunoenderana nekuita kwekumanikidza kudzora kana kuyerwa system system.

Sarudza Calibration Dzvinyiriro

Iko kusarudzwa kwekumanikidzwa kwecalibration kwakakosha zvakanyanya sezvazvinosarudza kudzvinyirira huwandu hunowana hwakanakisa hukuru. Muchokwadi, mushure mekuumbwa, iyo chaiyo yekugadzirisa kukanganisa inoderedzwa pane iyo calibration point uye inosara pane kukosha diki. Naizvozvo, iyo calibration point inofanira kusarudzwa zvichibva pane iyo tarisiro yekumanikidza, uye kumanikidzwa kwemhando kungangoenderana nehuwandu hwekushanda.

Kuti ushandure voltage yekubuda muKudzvinyiriri mukudzvinyirirwa

Mushure mekuita calset calibration (PCAL = 0), iyo Curve curve inoratidza yakagadziriswa yekubvisa hama kune iyo dema curve inomiririra kukanganisa usati waita calibration.

Iyi nzira yekusagadzikana ine inokatyamadza zvinodiwa uye yakakwira zvisingaiti mutengo uchienzaniswa neiyo point calibration nzira. Nekudaro, kana ichienzaniswa neiyo nzira yekunyora nzira, iyi nzira inogona kuvandudza zvakanyanya kukosha kwehurongwa nekuti hazvingori chete kudzikisira kugumbuka, asi zvakare calibrates yekunzwa kweiyo sensitor. Naizvozvo, mukuverenga kwekukanganisa, tsika dzekunzwa dzinogona kushandiswa pane zveatsical tsika.

Pano, calibration inoitwa pasi pemamiriro ezvinhu 0-500 megapascals (zviyero zvizere). Sezvo kukanganisa kuCalibration Points iri padyo neZero, zvakanyatsokosha kuti utarise izvi pfungwa idzi kuti uwane iyo shoma yekuyera kukanganisa mukati meiyo inotarisirwa kumanikidzwa.

Mamwe maapplication anoda zvakanyatsokodzera kuchengetedzwa mumudzimu yese yekumanikidza. Mune izvi zvekushandisa, iyo yakawanda-point calibration nzira inogona kushandiswa kuwana iyo yakanaka kwazvo mhinduro. Muhuwandu hwenzvimbo-yakawanda calibration, kwete kungogadzirisa chete uye zvikanganiso zvekunzwa zvinotariswa, asi zvakare zvakawanda mutsara zvikanganiso zvinotarisirwa. Iyo yemasvomhu inoshandiswa pano yakafanana neiyo mbiri-nhanho calibration kune yega yega calibration nguva (pakati pemapepa maviri ekunyora).

Nhatu nyaya calibration

Sezvambotaurwa, mutsara wekukanganisa ane fomu inowirirana, uye kukanganisa curve conforms kune iyo curve yequadratic equation, ine hukuru hwekufungidzira uye chimiro. Izvi zvinonyanya kuitika kune sensors izvo zvisingashandisi amplifiers, sezvo usingaenzaniswi hwepfungwa hunosangana nezvikonzero zvehunyanzvi (zvinokonzerwa nekudzvinyirira kweiyo silicon wafer).

Tsananguro yemutsara yekukanganisa inogona kuwanikwa nekuverenga iyo avhareji yekukanganisa mutsara wemuenzaniso wemuenzaniso uye kusarudza paramita ye polynomial basa (a × 2 + bx + c). Iyo modhi yakawanikwa mushure mekusarudza a, b, uye c inoshanda kune sensor yerudzi rumwe chete. Iyi nzira inogona kudzoreredza zvinokonzeresa mutsara zvikanganiso pasina kudiwa kwechikamu chechitatu calibration.