R76-1 Kurudziro yepasi rose kune Zvisiri-otomatikiWeighing Instrumentsinoita zero point uye zero kuseta nyaya yakakosha, uye haingotauri zvinodiwa zvekuyera chete, asiwo zvehunyanzvi zvinodiwa, nekuti kugadzikana kwe zero point yechero huremu chiridzwa ndicho chivimbiso chekutanga chekuyera kuita kwayo.Aya mazwi anotevera ane hukama zvakanyanya ne zero point, tinotsanangura, ongorora nekuchinjana.
(1) Chikanganiso chekutaura: Musiyano pakati pekukosha kwakaratidzwa kwechiyero uye kukosha kwechokwadi kwehuremu hunoenderana (convention).
(2) Maximum Inotenderwa Kanganiso: Pachiyero chiri munzvimbo yereferensi uye chakaiswa ku zero isina mutoro, musiyano mukuru wakanaka kana wakashata pakati pekukosha kwayo kwakaratidzwa uye kukosha kwechokwadi kunoenderana nereferenzi chiyero kana huremu hwakajairwa. inokurudzirwa kubvumidzwa.
(3) Zeroing Chishandiso: Chishandiso chinoisa kukosha kwakaratidzwa kusvika zero kana pasina mutoro pamutakuri.Yezvikero zvemagetsi, zvinosanganisira: semi-otomatiki zeroing mudziyo, otomatiki zeroing mudziyo, yekutanga zeroing mudziyo, zero yekutevera mudziyo.
(4) Zeroing Accuracy: Mushure mekunge chiyero chave zeroed, mhedzisiro ye zero kukanganisa pamugumisiro wekuyera iri mukati ± 0.25e.
(5) Zero point error: mushure mekudzikisa, zero point yechiyero inoratidza kukosha kwekukanganisa, kukanganisa kwakanyanya kunobvumirwa muhuwandu hwe ± 0.5e pakugadzirisa kwekutanga.
(6) Zero tracking mudziyo: mudziyo unongo chengetedza zero inoratidza kukosha mukati mehumwe danho.Zero yekutevera mudziyo ndeye otomatiki zero mudziyo.
Zero yekutevera mudziyo inogona kuve ina nyika: kwete, kwete kumhanya, kumhanya, kunze kweiyo inoshanda renji.
Iyo zero yekutevera mudziyo inotenderwa kushanda kana:
-Kukosha kwakaratidzwa i zero, kana kuenzana nehuremu hwehuremu husina kunaka kana huremu hwacho huri zero;
- uye chiyero chiri mukugadzikana;
- kururamisa hakusi kukuru kudarika 0.5 e / s.
1. Zero yekutevera mudziyo bvunzo
Sezvo huwandu hukuru hwezvigadzirwa zvemagetsi zvemagetsi muChina parizvino, pane zero yekutevera mudziyo, saka kukosha kwekuyedza zero point yekukanganisa, unofanirwa kuona kuti zero yekutevera haigone kushanda.Zvadaro, zero tracking device "haimhanye" nzira chete ndeyokuisa humwe huremu hwemutoro pedyo ne zero point, kuitira kuti zero tracking kupfuura yekushanda kwayo.
(1) sarudza mwero wekugadzirisa we zero yekutevera mudziyo
Nekuda kwemazinga akakodzera uye maitiro ekugadzirisa mune zero yekuteedzera chiyero haina kutsanangurwa munzira, vakawana kuti kune vamwe vanhu pane iyi fungidziro, nehana vanowedzera mwero wekururamisa, kuitira kuti chinoyera chidzoke ku zero nekukurumidza, kuitira kuratidza kuti kunaka kwechigadzirwa chega chega chakanaka.Nokuda kwechikonzero ichi, munyori akapfupisa mubasa chairo renzira, unogona kukurumidza mumunda kutarisa zero yekutevera chiyero chechiyero.
Vhura simba, simbisa zvishoma 30min, isa mutoro we10e pamutakuri wemutoro, kuitira kuti chiyero "zero tracking" chibude kunze kwekushanda.Zvinyoro shandisa 0.3e mutoro panguva dzepakati pe2s uye tarisa kukosha.
Mushure mokunge 3 yakatevedzana 0.3e mitoro, chiyero chinoratidza kuwedzera kukuru kwechikamu chimwe chete, zvichiratidza kuti chigadzirwa hachina kana kuti hachizoshanda.
Kana muyero usingaoneki kuchinja kukosha mushure mekutakura 3 ye 0.3e, chikwata chichiri kushanda uye chinotevera kugadzirisa mukati me 0.5e / s.
Zvadaro, bvisa zvinyoro 3 0.3e mitoro uye chiyero chinofanira kuratidza kuderera kukuru kwechikamu chimwe.
Sei 3 0.3e mitoro iri kushandiswa?
Mutoro we0.3e uri pasi pekugadzirisa chiyero che 0.5e / s;uye 3 0.3e mitoro yakakura kudarika 0.5e / s uye pasi peyero yekururamisa ye1e / s (nokuti chiyero chinodiwa chekugadzirisa chinowedzera pa 0.5e / s nguva).
(2) Kunyanya isa kuti wakawanda sei mutoro kupfuura zero yekutevera renji
R76, panguva yebvunzo iri mubvunzo, yaida kuti mutoro we10e uiswe kupfuura zero yekutevera.Sei kwete 5e mitoro, sei kwete 2e mitoro?
Kunyangwe mukurudziro dzepasirese uye mirau yedu yakakodzera yakanyatso kutsanangurwa kuti chiyero chekugadzirisa zero tracking mudziyo unofanirwa kunge uri "0.5e / s", asi vazhinji vanogadzira chiridzwa chekuyeresa, mufekitori yezviridzwa havana kuisa chiyero chekugadzirisa zero tracking mudziyo pa. pfungwa iyi.Kunyange vamwe vagadziri vezviridzwa zvekuyera, vakagadzirirwa muhuwandu hwekugadzirisa (ikozvino ona huwandu hwekugadzirisa huwandu hwe6e / s).
2. Zero accuracy check
Kana iyo yekuyera chiridzwa isina zero yekutevera basa, kana kune yakakosha switch yekuvhara zero tracking mudziyo, mukuona kwe "zero accuracy" uye "zero kukanganisa", hapana chikonzero chekuisa imwe mutoro (10e).Dambudziko nderekuti mazhinji ezviridzwa zvekuyeresa muChina hazvina kurongedzerwa switch inogona kuvhara zero yekutevera mudziyo, uye vese vane zero yekutevera basa, saka kuti tiwane zero kukanganisa, isu tinofanirwa kuisa mumwe mutoro. (10e) kuti iite kuti iende kupfuura zero yekutevera zera kana chikero chaburutswa, kuitira kuti tiwane kurongeka kweiyo zero yekumisikidza "pedyo ne zero" uye "zero kukanganisa".Izvi zvinoguma ne "near zero" zeroing yechokwadi.Sequentially isa 0.1e mamwe uremu kusvika kukosha kwawedzera zvakanyanya nechikamu chimwe (I+e), uye huwandu hwekuwedzera huremu ndeye ∆L, kuitira kuti zeroing kukanganisa kuve: E0=10e+0.5e-∆L-10e= 0.5e-∆L≤±0.25e.Kana huwandu hwekuwedzera huremu huri 0.4e, zvino: E0=0.5e-0.4e=0.1e<±0.25e..
3. Zvinoreva kuona zeroing kururama
Chinangwa chekuona kurongeka kwe zero kumisa ndeye kuona kuti kuverenga kwe "chikanganiso chekugadzirisa kusati kwagadziriswa" kunopedzwa mukugadzirisa.Paunenge uchitarisa kurongeka kwechiyero, kukanganisa kusati kwagadziriswa kunogona kuwanikwa nenzira: E = I + 0.5e-∆LL.Kuti uzive zvakanyanya kukanganisa pachiyero chekuyeresa chechikero, zvakakosha kuti ugadzirise nekukanganisa kwe zero point, kureva: Ec=E-E0≤MPE.
Mushure mekugadzirisa chikanganiso chekuyera nekukanganisa kwe zero point, zvinokwanisika kugadzirisa kukosha kunodarika zvishoma kudarika kunobvumirwa kukanganisa sekwakakodzera, kana kugadzirisa kukosha kunoratidzika kunge kuri mukati mehutano hwakakodzera sehusina kukodzera.Nekudaro, zvisinei nekuti gadziriso yacho inokodzera here kana kuti haina kukodzera, chinangwa chekushandisa zero point chikanganiso chakagadziriswa data ndechekuita kuti bvunzo dziswedere kune chokwadi chechiyero.
4. Zero Kukanganisa Kusarudza
Chokutanga pane zvose, kuenzanisa kunofanira kutarisa zero point kukanganisa kwechiyero nenzira iyi: usati wabvisa mutoro wose kubva kumutakuri wechiyero, zvakakosha kuisa mutoro we10e pamutakuri wekutakura, wozobvisa mutoro. kubva pamutakuri wemutoro, uye isa 0.1e mamwe maremu kuitira kusvika kukosha kwave kuri pachena kwakawedzera nechikamu chimwe (I+e), uye kuunganidzwa kwehuremu hwekuwedzera ndeye ∆L, wobva waona chikanganiso che zero maererano nenzira ye nzvimbo inopenya, E=10e+0.5 E=10e+0.5e-∆L-10e=0.5e-∆L≤±0.5e.Kana huremu hwekuwedzera huchikwira kusvika ku0.8e, zvino: E0=0.5e-0.8e=-0.3e<±0.5e.
Nguva yekutumira: Aug-14-2023