R76 - 1 shawarwarin kasa da kasa don ba - atomatik Kayan aiki Yana sanya sifili mai sifili da sifili yana kafa wani muhimmin batun, kuma ba wai kawai saita bukatun mawuyacin aiki ba, har ma da buƙatun fasahar sifili shine ainihin mahimmancin aikinta. Kalmomin da ke gaba suna da alaƙa da sifilin sifili, muna bayani, bincika bi.
(1) Kuskuren magana: Bambanci tsakanin ƙimar da aka nuna da ƙimar gaskiya na taro mai dacewa (babban taron).
(2) Matsakaicin kuskuren izini: don sikelin da ke cikin matsayin tunani kuma an tabbatar da matsakaicin ƙimar ƙimar da aka nuna a tsakanin ƙimar ƙimar da aka nuna ko daidaitaccen ma'aunin da aka ba da izini.
(3) Na'urar sifili: na'urar da ke saita ƙimar da aka nuna don sifili lokacin da babu kaya a kan mai ɗauka. Don sikeli na lantarki, gami da: Semi - Na'urar zina kai tsaye, na'urar zina ta atomatik, na'urar zaki na farko, na'urar zaki.
(4) daidaito: bayan sikelin ba daidai ba, sakamakon kuskuren sifili a kan sakamako mai mahimmanci yana cikin ± 0.25e.
(5) Kuskuren Bayyanar sifili: Bayan saukarwa, lokacin sifili na sikelin yana nuna kuskuren ƙimar, matsakaicin izinin kuskure a cikin kewayon ± 09e a farkon dala.
(6) na'urar bibiyar sifili: na'urar da ke kula da darajar sifili ta atomatik a cikin wani kewayon. Na'urar sawu na sifili shine na'urar sigina ta atomatik.
Na'urar sa sifili na iya samun jihohi huɗu: A'a, ba gudu ba, Gudun, daga kewayon aiki.
An ba da izinin na'urar sifili don aiki lokacin da:
- Darajar da aka nuna shine sifili, ko kuma daidai da ƙimar nauyin sikelin lokacin da babban nauyin yake da sifili;
- Kuma ma'auni yana cikin karuwa;
- Gyara ba ta fi 0.5 e / s ba.
1. Gwajin na'urar sa ido
A matsayin mafi yawan samfuran daidaita hanyoyin lantarki a China a yanzu, akwai buƙatar sa ido, don haka buƙatar gwada ma'anar sifili, dole ne ku tabbatar cewa bin sawu ba zai iya kasancewa cikin aiki ba. To, na'urar binsi na sifili "ba ya gudana" hanya daya tilo shine don sanya wani nauyin kaya kusa da sifili, saboda sifilin sifili fiye da kewayon aiki.
(1) Kayyade darajar gyara na na'urar sawu na sifili
Saboda hanyoyin da suka dace da hanyoyin daidaitawa da ke tattarawa a cikin ƙididdigar tsarin sifili ba a tantance su ba, don nuna cewa ingancin kayan aiki, don ya nuna cewa ingancin samfurin samfuran mutum ne mai kyau. A saboda wannan dalili, marubucin ya taƙaita a cikin ainihin aikin hanya, zaku iya sauri a cikin filin don bincika ƙimar bin sifili na sikelin.
Kunna iko, a kalla akalla 30min, sanya nauyin 10e a kan mai ɗaukar kaya, saboda sikelin "sifili mai bi" ya kasance daga kewayon aiki. A hankali a sanya kaya 0.3e a cikin sauyawa na kimanin 2s kuma lura da darajar.
Bayan 3 jere lamunin 0.3e, sikelin yana nuna mahimmancin karuwa guda ɗaya, wanda ke nuna cewa na'urar ba ta aiki ba ko ba zai yi aiki ba.
Idan sikelin baya canzawa darajar bayan lodi na 0.3e, har yanzu naúrar har yanzu tana aiki da gyaran bin diddigin 0.5e / s.
Bayan haka, a hankali cire lodi na 3 0.3.3e kuma sikelin ya kamata ya nuna babban rabo ɗaya rabo.
Me yasa ake amfani da lodi guda 0.3
Nauyin 0.3e yana ƙasa da yawan gyara na 0.5e / s; Kuma 3 0.3e lodi sun fi 0,5e / s da ƙasa da ƙididdigar gyara na 1e / s (saboda ƙarancin gyara da ake buƙata ya dace da 0.5e / s instemals).
(2) Musamman sanya yawan abin da ya wuce adadin sifilin sifili
R76, a lokacin gwajin, ana buƙatar nauyin 10e da za a sanya shi fiye da kewayon saƙo. Me yasa ba lodi guda 5 ba, me yasa ba lods 2e?
Kodayake a cikin shawarwarin ƙasun duniya da ƙa'idodin da muke dacewa suna daɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗaɗɗun ƙayyadaddun kayan aikin sifili dole ne su kasance "0.5e / s", amma da yawa suna yin amfani da kayan aikin saitin sifili a wannan lokacin. Ko da wasu masana'antun da suke aiki, saiti a cikin iyakar ingancin gyara (a halin yanzu suna ganin matsakaicin tsarin gyara na 6e / s).
2. Daidaitaccen daidaitaccen tsari
If the weighing instrument does not have zero tracking function, or there is a special switch to close the zero tracking device, in the detection of “zero accuracy” and “zero error”, there is no need to put additional load (10e). The problem is that most of the weighing instruments in China are not equipped with a switch that can close the zero tracking device, and they all have the zero tracking function, so in order to get the zero error, we have to put an additional load (10e) to make it go beyond the zero tracking range when the scale is unloaded, so that we can get the accuracy of the zero setting “near zero” and the “zero error”. This results in a “near zero” zeroing accuracy. Sequentially place 0.1e additional weights until the value increases significantly by one division (I+e), and the total of the additional weights is ∆L, so that the zeroing error is: E0=10e+0.5e-∆L-10e=0.5e-∆L≤±0.25e. If the total of the additional weights is 0.4e, then: E0=0.5e-0.4e=0.1e<±0.25e. .
3. Meaning of determining zeroing accuracy
Dalilin tantance daidaitaccen tsarin sifilin sifili shine tabbatar da lissafin "kuskuren gyara kafin gyara" an kammala shi a cikin tsarin daidaitawa. Lokacin bincika daidaitaccen sikelin, pre - Kuskuren gyara zai iya samun kuskuren gyara ta hanyar dabara: e = i + 0.5e - Δl - l. Don ƙarin sani da kuskure daidai gwargwadon ma'aunin, ya zama dole a gyara shi ta kuskuren sifili, IC = E - EC = E - E0CEMPE.
Bayan an gyara kuskuren nuna ma'ana ta kuskuren ma'anar sifili, yana yiwuwa a gyara ƙimar da ya wuce kuskuren iyaka da ya cancanta kamar yadda ba a daidaita shi ba. Koyaya, ba tare da la'akari da ko gyara ba ya cancanci ko kuma ba a san shi ba, manufar amfani da kuskuren sifili ita ce don tabbatar da gaskiyar gwajin.
4.
Da farko dai, daidaituwa ya kamata ya ƙayyade kuskuren sifili na sikelin (i + e), sannan a cire ƙarin nauyin kaya, sannan a tara ƙarin kuskuren sifili, sannan a tantance kuskuren ɗaukar nauyi, sannan a ƙayyade kuskuren ɗaukar nauyi, sannan a tantance ƙarin kuskuren sifili, sannan a tantance kuskuren sifili, sannan a tantance kuskuren sifili bisa ga hanyar da Maɗaukaki, e = 10e + 0.5 e = 10e + 0.5e - Δl - 10e - Δl≤ ± 0.5. Idan ƙarin nauyi ya tara zuwa 0.8e, to,: e0 = 0.5e - 0.3e = - 0.3e = - 0.3e = - 0.3e = - 0.3e = - 0.3e = - 0.3e = - 0.3e<±0.5e.
Lokaci: Agusta - 14 - 2023