Jagoran Ƙarshe don Zaɓin Watsawar Matsi na Silicon
Jagorar gwani don aikace-aikacen ma'aunin masana'antu
Dubawa
Ana rarraba masu watsa matsi ta hanyar fasahar fahimtar su, gami da silikon da aka watsar, yumbu, capacitive, da silicon monocrystalline. Daga cikin waɗannan, masu watsa matsi na siliki sun fi karɓuwa a cikin masana'antu. An san su da ƙarfin ƙarfinsu, aminci, da ƙimar farashi, suna da kyau don kulawa da matsa lamba da sarrafawa a cikin man fetur da gas, sarrafa sinadarai, masana'antun karfe, samar da wutar lantarki, injiniyan muhalli, da sauransu.
Waɗannan masu watsawa suna goyan bayan ma'auni, cikakke, da ma'aunin matsi mara kyau-har ma a cikin lalata, matsa lamba, ko yanayi mai haɗari.
Amma ta yaya wannan fasaha ta ci gaba, kuma waɗanne dalilai ya kamata ku yi la'akari da lokacin zabar samfurin da ya dace?
Asalin Fasahar Silicon Diffused
A cikin 1990s, NovaSensor (Amurka) ya gabatar da sabon ƙarni na na'urori masu auna siliki ta hanyar amfani da ci-gaban micromachining da fasahar haɗin gwiwar silicon.
Ka'idar tana da sauƙi amma mai tasiri: an keɓe matsin lamba ta hanyar diaphragm kuma an canja shi ta hanyar mai siliki mai hatimi zuwa membrane silicone mai mahimmanci. A gefe guda, ana amfani da matsa lamba na yanayi azaman tunani. Wannan bambance-bambancen yana haifar da membrane don lalacewa - gefe ɗaya yana shimfiɗa, ɗayan yana matsawa. Ma'aunin ma'aunin da aka haɗa suna gano wannan nakasar, yana mai da shi madaidaicin siginar lantarki.
Maɓalli 8 don Zaɓin Watsawar Matsi na Silicon
1. Matsakaici Halaye
Halin sinadarai da na zahiri na ruwan tsari yana tasiri kai tsaye dacewa da firikwensin.
Dace:Gases, mai, ruwa mai tsabta - yawanci ana sarrafa su tare da daidaitattun firikwensin bakin karfe 316L.
Bai dace ba:Mai saurin lalacewa, mai danko, ko kafofin watsa labarai masu kyalli - waɗannan na iya toshe ko lalata firikwensin.
Shawarwari:
- Ruwa mai kyalli/kristallizing (misali, slurries, syrups): Yi amfani da jigilar diaphragm don hana toshewa.
- Aikace-aikace masu tsafta (misali, abinci, kantin magani): Zaɓi ƙirar diaphragm mai ɗamara mai ɗamara (≤4 MPa don amintaccen dacewa).
- Kafofin watsa labarai masu nauyi (misali, laka, bitumen): Yi amfani da diaphragms marasa raɗaɗi, tare da ƙaramin matsi na ~2 MPa.
⚠️ Tsanaki: Kar a taɓa ko karce diaphragm na firikwensin - yana da taushi sosai.
2. Rage Matsi
Madaidaicin kewayon aunawa: -0.1MPa zuwa 60MPa.
Koyaushe zaɓi mai watsawa da aka ƙididdige dan kadan sama da matsakaicin matsi na aiki don aminci da daidaito.
Maganar sashin matsa lamba:
1 MPa = 10 mashaya = 1000 kPa = 145 psi = 760 mmHg ≈ 100 mita ruwa shafi
Ma'auni vs. Cikakken Matsi:
- Ma'aunin ma'auni: ana magana da matsa lamba na yanayi.
- Cikakkun matsi: ana nusar da shi zuwa cikakken injin.
Lura: A cikin yankuna masu tsayin tsayi, yi amfani da masu watsa ma'aunin ma'auni (tare da bututun iska) don rama matsin yanayi na gida lokacin da daidaito ya shafi (
3. Daidaituwar yanayin zafi
Yanayin aiki na yau da kullun: -20°C zuwa +80°C.
Don kafofin watsa labarai masu zafi (har zuwa 300°C), la'akari:
- Sanyi fins ko zafi nutse
- Hatimin diaphragm mai nisa tare da capillaries
- Buga bututu don keɓe firikwensin daga zafi kai tsaye
4. Samar da Wutar Lantarki
Standard wadata: DC 24V.
Yawancin samfura suna karɓar 5-30V DC, amma guje wa abubuwan da ke ƙasa da 5V don hana rashin daidaituwar sigina.
5. Nau'in Siginar fitarwa
- 4-20 mA (2-waya): Matsayin masana'antu don watsa nisa mai nisa da tsangwama
- 0-5V, 1-5V, 0-10V (waya 3): Madaidaici don aikace-aikacen gajere
- RS485 (dijital): Don serial sadarwa da tsarin sadarwar
6. Tsari Haɗin Zaren
Nau'in zaren gama gari:
- M20×1.5 (metric)
- G1/2, G1/4 (BSP)
- M14×1.5
Daidaita nau'in zaren tare da ƙa'idodin masana'antu da buƙatun injin ku.
7. Daidaiton Class
Matakan daidaito na yau da kullun:
- ± 0.5% FS - misali
- ± 0.3% FS - don mafi girman daidaito
⚠️ Ka guji ƙayyadad da ± 0.1% FS daidaito don watsa siliki da aka watsa. Ba a inganta su don ingantaccen aiki a wannan matakin ba. Madadin haka, yi amfani da ƙirar silicon monocrystalline don irin waɗannan aikace-aikacen.
8. Haɗin Wutar Lantarki
Zaɓi bisa la'akari da bukatun shigarwa:
- DIN43650 (Hirschmann): Kyakkyawan hatimi, ana amfani da su
- Filogi na jirgin sama: Sauƙaƙe shigarwa da sauyawa
- Jagorar kebul na kai tsaye: Karami da juriya
Don amfani da waje, zaɓi gidaje mai salo 2088 don ingantaccen yanayin kariya.
La'akari na Musamman
Q1: Zan iya auna gas ammonia?
Ee, amma tare da kayan da suka dace kawai (misali, Hastelloy diaphragm, hatimin PTFE). Har ila yau, ammonia yana amsawa da man siliki-amfani da mai mai fluorined a matsayin mai cika ruwa.
Q2: Me game da kafofin watsa labaru masu ƙonewa ko fashewa?
Guji daidaitaccen man siliki. Yi amfani da mai (misali, FC-70), wanda ke ba da mafi kyawun kwanciyar hankali da juriyar fashewa.
Kammalawa
Godiya ga tabbataccen amincin su, daidaitawa, da ingancin farashi, tarwatsa masu watsa matsi na silicon sun kasance mafita ga masana'antu daban-daban.
Zaɓin mai hankali dangane da matsakaici, matsa lamba, zazzabi, nau'in haɗin kai, da daidaito yana tabbatar da kyakkyawan aiki da dorewa na dogon lokaci.
Kuna buƙatar taimako don zaɓar samfurin da ya dace?
Faɗa mana aikace-aikacen ku-zamu taimaka muku samun daidaitaccen wasa.
Lokacin aikawa: Juni-03-2025