Tataiso e ka ho Fetisisang ea ho Khetha Sebapali sa Khatello ea Silicon e Pharalletseng
Tataiso ea litsebi bakeng sa likopo tsa tekanyo ea indasteri
Kakaretso
Li-transmitters tsa khatello li arotsoe ka mahlale a tsona a ho lemoha, ho kenyelletsa le silicon e pharalletseng, ceramic, capacitive, le monocrystalline silicon. Har'a tsena, li-transmitters tsa khatello ea silicon tse pharalletseng ke tsona tse amoheloang ka ho fetesisa liindastering tsohle. Li tsejoa ka ts'ebetso ea tsona e matla, e ts'eptjoang le ea theko e tlaase, li loketse ho shebella khatello le taolo ho oli le khase, ts'ebetso ea lik'hemik'hale, tlhahiso ea tšepe, tlhahiso ea matla, boenjiniere ba tikoloho le tse ling.
Li-transmitters tsena li tšehetsa litekanyo tsa likhatello, tse feletseng le tse mpe—esita le maemong a senyang, a khatello e phahameng kapa a kotsi.
Empa theknoloji ee e ile ea ntlafala joang, hona ke lintlha life tseo u lokelang ho li ela hloko ha u khetha mohlala o nepahetseng?
Tšimoloho ea Theknoloji ea Silicon e Pharalletseng
Lilemong tsa bo-1990, NovaSensor (USA) e ile ea hlahisa moloko o mocha oa li-sensor tsa silicon tse hasoang ka ho sebelisa theknoloji e tsoetseng pele ea micromachining le silicon bonding.
Molao-motheo o bonolo empa o sebetsa: khatello ea ts'ebetso e khetholloa ke diaphragm 'me e fetisetsoa ka oli e tiisitsoeng ea silicone ho membrane ea silicon e hlokolosi. Ka lehlakoreng le leng, khatello ea sepakapaka e sebelisoa e le tšupiso. Phapang ena e etsa hore lera le holofale—lehlakore le leng lea otloloha, le leng le hatella. Li-gauge tse kentsoeng tsa khatello li lemoha ho senyeha hona, ho e fetola lets'oao le nepahetseng la motlakase.
8 Mekhahlelo ea Bohlokoa bakeng sa ho Khetha Sefate sa Khatello ea Silicon e Pharalletseng
1. Litšobotsi tse Mahareng
Sebopeho sa lik'hemik'hale le 'mele oa mokelikeli oa ts'ebetso o ama ka ho toba ho lumellana ha kutlo.
E loketse:Ligase, oli, lino tse hloekileng - hangata li sebetsoa ka lisensara tse tloaelehileng tsa 316L.
Ha ea loka:Mecha ea litaba e senyang haholo, ea viscous, kapa e phatsimang - tsena li ka koala kapa tsa senya kutlo.
Likhothaletso:
- Mekelikeli e bonaletsang (mohlala, li-slurries, syrups): Sebelisa li-transmitters tsa diaphragm ho thibela ho koala.
- Lisebelisoa tsa bohloeki (mohlala, lijo, pharma): Khetha mefuta ea tri-clamp flush diaphragm (≤4 MPa bakeng sa ho kenya ka mokhoa o sireletsehileng).
- Mecha ea litaba e boima (mohlala, seretse, sekontiri): Sebelisa li-diaphragm tse sa sebetseng, tse nang le khatello e tlase ea ho sebetsa ea ~ 2 MPa.
⚠️ Tlhokomeliso: Se ke oa ama kapa oa ngwapa diaphragm ea kutlo - e bobebe haholo.
2. Khatello Range
Mefuta e tloaelehileng ea ho metha: -0.1 MPa ho isa ho 60 MPa.
Kamehla khetha transmitter e lekantsoeng hanyane kaholimo ho khatello ea hau ea ho sebetsa bakeng sa polokeho le ho nepahala.
Referense ea khatello ea maikutlo:
1 MPa = 10 bar = 1000 kPa = 145 psi = 760 mmHg ≈ kholomo ea metsi ea limithara tse 100
Gauge vs. Absolute Pressure:
- Khatello ea sekhahla: e supang khatello ea sepakapaka.
- Khatello e felletseng: e bua ka vacuum e phethahetseng.
Tlhokomeliso: Libakeng tse phahameng, sebelisa li-transmitters tse nang le moea (tse nang le li-tubes) ho lefella khatello ea sepakapaka ea lehae ha ho nepahala ho le bohlokoa (
3. Ho lumellana ha Mocheso
Sebaka se tloaelehileng sa ho sebetsa: -20°C ho ea ho +80°C.
Bakeng sa mecha ea litaba ea mocheso o phahameng (ho fihla ho 300 ° C), nahana ka:
- Mapheoana a ho pholisa kapa licheso tsa mocheso
- Litiiso tsa diaphragm tse hole tse nang le li-capillaries
- Impulse tubing ho arola sensor ho mocheso o tobileng
4. Phepelo ea Matla
Phepelo e tloaelehileng: DC 24V.
Mefuta e mengata e amohela 5–30V DC, empa qoba lintho tse kenang ka tlase ho 5V ho thibela ho se tsitse ha matšoao.
5. Mefuta ea Pontšo ea Phallo
- 4–20 mA (2-terata): Tekanyetso ea indasteri bakeng sa phetisetso ea sebaka se selelele le e hanang tšitiso
- 0–5V, 1–5V, 0–10V (3-terata): E loketse ditshebediso tsa nako e kgutshwane
- RS485 (digital): Bakeng sa puisano ea serial le litsamaiso tsa marang-rang
6. Mekhoa ea Khokahano ea Ts'ebetso
Mefuta e tloaelehileng ea likhoele:
- M20×1.5 (metric)
- G1/2, G1/4 (BSP)
- M14×1.5
Bapisa mofuta oa likhoele le litloaelo tsa indasteri le litlhoko tsa mochini oa sistimi ea hau.
7. Sehlopha sa ho nepahala
Maemo a tloaelehileng a ho nepahala:
- ± 0,5% FS - e tloaelehileng
- ± 0.3% FS - bakeng sa ho nepahala ho phahameng
⚠️ Qoba ho hlakisa ho nepahala ha ±0.1% FS bakeng sa li-transmitters tsa silicon tse pharalletseng. Ha lia ntlafatsoa bakeng sa mosebetsi o nepahetseng haholo boemong bona. Sebakeng seo, sebelisa mefuta ea silicon ea monocrystalline bakeng sa lits'ebetso tse joalo.
8. Lihokelo tsa Motlakase
Khetha ho latela litlhoko tsa hau tsa ho kenya:
- DIN43650 (Hirschmann): Ho tiisa hantle, ho sebelisoa hangata
- Aviation plug: Ho kenya habonolo le ho nkeloa sebaka
- Direct Cable lead: Compact ebile e thibela mongobo
Bakeng sa ts'ebeliso ea kantle, khetha matlo a mofuta oa 2088 bakeng sa ho thibela boemo ba leholimo bo ntlafalitsoeng.
Litlhokomelo tse khethehileng
Q1: A na nka lekanya khase ea ammonia?
E, empa feela ka lisebelisoa tse loketseng (mohlala, diaphragm tsa Hastelloy, PTFE litiiso). Hape, ammonia e arabela ka oli ea silicone-sebelisa oli e nang le fluorinated e le mokelikeli oa ho tlatsa.
Q2: Ho thoe'ng ka mecha ea phatlalatso e tukang kapa e phatlohang?
Qoba oli e tloaelehileng ea silicone. Sebelisa oli ea fluorinated (mohlala, FC-70), e fanang ka botsitso bo betere ba lik'hemik'hale le ho hanyetsa ho phatloha.
Qetello
Ka lebaka la ts'epo ea bona e netefalitsoeng, ho ikamahanya le maemo, le ho baballa litšenyehelo, li-transmitters tse pharalletseng tsa silicon li lula e le tharollo ea liindasteri tse fapaneng.
Khetho e hlokolosi e ipapisitseng le mahareng, khatello, mocheso, mofuta oa khokahano, le ho nepahala ho netefatsa ts'ebetso e nepahetseng le ho tšoarella ha nako e telele.
U hloka thuso ho khetha mofuta o nepahetseng?
Re bolelle kopo ea hau—re tla u thusa ho fumana e tšoanelang hantle.
Nako ea poso: Jun-03-2025