Qhov kawg Qhia rau xaiv ib tug diffused Silicon Pressure Transmitter
Cov kws tshaj lij kev taw qhia rau kev siv ntsuas kev lag luam
Txheej txheem cej luam
Lub siab transmitters raug cais los ntawm lawv cov thev naus laus zis, suav nrog diffused silicon, ceramic, capacitive, thiab monocrystalline silicon. Ntawm cov no, diffused silicon siab transmitters yog dav siv thoob plaws hauv kev lag luam. Paub txog lawv cov kev ua tau zoo, kev ntseeg siab, thiab kev siv nyiaj txiag zoo, lawv zoo tagnrho rau kev saib xyuas thiab tswj hauv cov roj thiab roj, tshuaj ua haujlwm, steel tsim, tsim hluav taws xob, ib puag ncig engineering, thiab lwm yam.
Cov transmitters no txhawb kev ntsuas, qhov tseeb, thiab qhov ntsuas qhov tsis zoo - txawm tias nyob rau hauv corrosive, high-pressure, los yog muaj kev phom sij.
Tab sis qhov kev siv tshuab no tau tsim kho li cas, thiab dab tsi koj yuav tsum xav txog thaum xaiv tus qauv zoo?
Keeb kwm ntawm Diffused Silicon Technology
Nyob rau xyoo 1990, NovaSensor (USA) tau qhia txog lub cim tshiab ntawm diffused silicon sensors siv cov micromachining thiab silicon bonding technologies.
Lub hauv paus ntsiab lus yog qhov yooj yim tab sis siv tau: cov txheej txheem siab raug cais los ntawm lub diaphragm thiab xa mus los ntawm cov roj silicone kaw mus rau lub rhiab silicon membrane. Nyob rau sab nraud, atmospheric siab yog siv raws li kev siv. Qhov kev sib txawv no ua rau cov membrane deform - ib sab stretches, lwm yam compresses. Embedded strain gauges ntes qhov deformation no, hloov nws mus rau hauv cov teeb liab hluav taws xob.
8 Qhov tseem ceeb Parameters rau xaiv ib tug diffused Silicon Pressure Transmitter
1. Cov yam ntxwv nruab nrab
Cov tshuaj lom neeg thiab lub cev ntawm cov txheej txheem dej ncaj qha cuam tshuam rau kev sib raug zoo ntawm lub sensor.
Tsim nyog:Gases, roj, dej huv - feem ntau ua haujlwm nrog tus qauv 316L stainless hlau sensors.
Tsis tsim nyog:corrosive heev, viscous, los yog crystallizing xov xwm - cov no yuav txhaws los yog puas lub sensor.
Cov lus pom zoo:
- Cov kua dej khov / ua kom khov (piv txwv li, slurries, syrups): Siv cov tshuab xa hluav taws xob ntws los tiv thaiv kev txhaws.
- Kev siv huv huv (piv txwv li, khoom noj khoom haus, pharma): Xaiv tri-clamp flush diaphragm qauv (≤4 MPa rau kev ruaj ntseg haum).
- Cov xov xwm hnyav (piv txwv li, av nkos, bitumen): Siv cov kab noj hniav tsis muaj kab noj hniav, nrog qhov ua haujlwm tsawg kawg nkaus ntawm ~ 2 MPa.
⚠️ Ceeb Toom: Tsis txhob kov lossis khawb lub diaphragm sensor - nws yog qhov muag heev.
2. Siab Ntau
Kev ntsuas qhov ntsuas: -0.1 MPa rau 60 MPa.
Ib txwm xaiv lub transmitter ntsuas me ntsis saum koj qhov siab tshaj plaws ua haujlwm kom muaj kev nyab xeeb thiab raug.
Pressure Unit reference:
1 MPa = 10 bar = 1000 kPa = 145 psi = 760 mmHg ≈ 100 meters dej kem
Gauge vs. Absolute Pressure:
- Gauge siab: hais rau ambient atmospheric siab.
- Lub siab tsis txaus: hais txog lub tshuab nqus tsev zoo meej.
Nco tseg: Hauv thaj chaw siab siab, siv cov ntsuas ntsuas qhov ntsuas cua (nrog rau lub qhov cua) txhawm rau them nyiaj rau cov huab cua hauv zos thaum qhov raug teeb meem (
3. Kub Compatibility
Kev khiav hauj lwm ntau yam: -20 ° C rau + 80 ° C.
Rau cov xov xwm kub kub (txog 300 ° C), xav txog:
- Cua txias fins los yog cua sov dab dej
- Tej thaj chaw deb diaphragm seals nrog capillaries
- Impulse tubing kom cais cov sensor los ntawm cov cua sov ncaj qha
4. Fais fab mov
Standard mov: DC 24V.
Feem ntau cov qauv lees txais 5-30V DC, tab sis tsis txhob muaj cov khoom nkag hauv qab 5V kom tiv thaiv cov teeb liab tsis ruaj khov.
5. Tso zis hom teeb liab
- 4-20 mA (2-xaim): Kev lag luam tus qauv rau kev sib kis mus ntev thiab cuam tshuam-tiv taus
- 0-5V, 1-5V, 0-10V (3-xaim): Zoo tagnrho rau kev siv luv luv
- RS485 (digital): Rau kev sib txuas lus thiab kev sib txuas lus
6. Txheej txheem kev sib txuas xov
Common thread hom:
- M20 × 1.5 hli
- G1/2, G1/4 (BSP)
- M14 × 1.5
Sib phim hom xov nrog cov qauv kev lag luam thiab koj qhov system cov kev xav tau ntawm cov tshuab.
7. Chav kawm raug
Hom raug theem:
- ± 0.5% FS - tus qauv
- ± 0.3% FS - rau siab dua
⚠️ Tsis txhob qhia meej ± 0.1% FS raug rau diffused silicon transmitters. Lawv tsis optimized rau ultra-precision ua hauj lwm nyob rau theem no. Hloov chaw, siv cov qauv monocrystalline silicon rau cov ntawv thov no.
8. Kev sib txuas hluav taws xob
Xaiv raws li koj qhov kev xav tau installation:
- DIN43650 (Hirschmann): Zoo sealing, feem ntau siv
- Aviation plug: Ib qho yooj yim installation thiab hloov
- Direct cable lead: Compact thiab noo noo-resistant
Rau kev siv sab nraum zoov, xaiv 2088-style vaj tsev rau kev txhim kho huab cua tiv thaiv.
Kev txiav txim siab tshwj xeeb
Q1: Kuv puas tuaj yeem ntsuas ammonia roj?
Yog lawm, tab sis tsuas yog nrog cov ntaub ntawv tsim nyog (xws li, Hastelloy diaphragm, PTFE seals). Tsis tas li ntawd, ammonia reacts nrog cov roj silicone - siv cov roj fluorinated ua cov kua dej puv.
Q2: Ua li cas txog cov khoom siv hluav taws xob lossis cov khoom tawg?
Tsis txhob txheem cov roj silicone. Siv cov roj fluorinated (piv txwv li, FC-70), uas muaj cov tshuaj lom neeg ruaj khov thiab tawg tsis kam.
Xaus
Ua tsaug rau lawv cov pov thawj ntseeg tau, yoog raws, thiab tus nqi-zoo, diffused silicon siab transmitters tseem yog ib qho kev daws teeb meem thoob plaws ntau hom kev lag luam.
Ua tib zoo xaiv raws li qhov nruab nrab, siab, qhov kub thiab txias, hom kev sib txuas, thiab qhov tseeb ua kom pom kev ua haujlwm zoo thiab ua haujlwm ntev.
Xav tau kev pab xaiv tus qauv zoo?
Qhia rau peb koj daim ntawv thov-peb yuav pab koj nrhiav tau qhov zoo tshaj plaws match.
Post lub sij hawm: Jun-03-2025