Ceramic Capacitive Pressure Sensor - Cov Lus Qhia Xaiv

Ceramic capacitive siab sensors yog dav siv nyob rau hauv industrial automation, txheej txheem tswj, dej kho, tshuaj, thiab ntau lwm yam lag luam vim lawv ruggedness, corrosion kuj, siab stability, thiab siab precision. Lub hauv paus ntsiab lus tseem ceeb siv lub diaphragm ceramic ua ib phaj ntawm lub capacitor. Thaum lub siab siv rau lub diaphragm, nws deflects me ntsis, ua rau muaj kev hloov pauv hauv lub peev xwm. Ib lub ntsuas hluav taws xob tom qab ntawd hloov qhov kev hloov pauv hloov mus rau hauv cov qauv hluav taws xob tso zis teeb liab.

Cov Ntsiab Cai Xaiv

1. Media Compatibility
Qhov no yog thawj qhov kev xaiv. Cov khoom siv ceramic nws tus kheej muaj kev tiv thaiv corrosion zoo heev thiab tuaj yeem tiv taus cov kua qaub thiab roj ntau, nrog rau cov kua qaub thiab alkalis. Thaum xaiv, paub meej tias qhov chaw nyob rau hauv kev sib cuag nrog cov xov xwm (feem ntau yog ceramic diaphragm) tuaj yeem ua haujlwm tau zoo nyob rau lub sijhawm ntev. Rau high-viscosity los yog crystallized yooj yim tshaj tawm, ib tug flush-diaphragm (flat film) tsim zoo tiv thaiv clogging.

2. Siab Ntau
Xaiv qhov ntau raws li qhov siab tshaj plaws hauv koj qhov kev ua haujlwm tiag tiag. Txhawm rau kom muaj kev nyab xeeb ntawm lub sensor thiab txuas ntxiv lub neej kev pabcuam, nws feem ntau pom zoo tias kev ua haujlwm siab nyob nruab nrab ntawm 60% thiab 80% ntawm qhov ntsuas qhov ntsuas tag nrho, tawm hauv qee qhov kev ua haujlwm dhau los. Ceramic capacitive sensors feem ntau muaj lub peev xwm tshaj tawm thiab tuaj yeem tiv taus 2 × lossis txawm tias siab dua qhov ntsuas siab yam tsis muaj kev puas tsuaj.

3. Qhov tseeb
Qhov tseeb yog qhov qhia txog kev ua haujlwm tseem ceeb, feem ntau qhia raws li qhov feem pua ​​​​ntawm tag nrho cov nplai (%FS), thiab suav nrog qhov yuam kev vim tsis yog linearity, hysteresis, thiab rov ua dua. Qhov sib xyaw ua ke ntawm ceramic capacitive siab sensors feem ntau yog nruab nrab ntawm 0.2% FS thiab 0.5% FS. Rau cov ntawv thov uas xav tau kev tswj hwm thiab ntsuas qhov tseeb, yuav tsum xaiv tus qauv nrog qhov tseeb dua.

4. Kev khiav hauj lwm qhov kub thiab txias
Lub sensor yuav tsum ua haujlwm ruaj khov nyob rau hauv ib qho tshwj xeeb ambient kub. Cov khoom siv ceramic nws tus kheej muaj qhov zoo thermal stability thiab kev ua haujlwm kub ntau, feem ntau ntawm -40℃rau +135℃. Thaum xaiv, xyuas kom meej tias qhov ntsuas qhov kub ntawm qhov ntsuas qhov ntsuas qhov ntsuas qhov ntsuas qhov ua haujlwm kom tsis txhob ntsuas qhov ntsuas kub los ntawm kev hloov pauv kub.

5. Tso zis tawm
Xaiv lub teeb liab tsim nyog raws li cov kev xav tau ntawm koj qhov kev tswj hwm (piv txwv li, PLC, DCS, microcontroller). Cov qauv qauv qhia muaj xws li:

Analog tso zis4-20 mA (ob-xaim, muaj zog tiv thaiv kev cuam tshuam, feem ntau), 0-5 V, 0-10 V.

Digital outputs: RS485, CAN, thiab lwm yam, uas yooj yim rau kev tsim cov kev sib txuas lus ntse.

6. Txheej txheem kev sib txuas & hluav taws xob txuas

Txheej txheem kev sib txuas: Cov txheej txheem kev sib txuas ntawm kev sib txuas ntawm lub sensor thiab ntsuas nruab nrab. Hom kev sib txuas muaj xws li xov txuas (piv txwv li, G1/4, M20 × 1.5, NPT1/4) thiab flange txuas. Nws yuav tsum phim lub teb yeeb nkab lossis cov khoom siv interface.

Kev sib txuas hluav taws xob: Txoj kev uas lub sensor hluav taws xob teeb liab raug coj tawm. Cov hom muaj xws li Hirschmann connector, aviation plug, thiab ncaj qha cable tawm. Xaiv hom uas pab txhawb kev xa xov thiab kev saib xyuas.

7. Kev tiv thaiv Ingress (IP) Rating
Xaiv qhov kev ntsuam xyuas IP tsim nyog raws li cov av noo thiab plua plav ntawm qhov chaw teeb tsa. Rau qhov chaw sab nraum zoov lossis qhov chaw ntub dej, ib qho IP65 lossis IP67 sensor yuav tsum raug xaiv los tiv thaiv kev ya raws thiab plua plav uas tuaj yeem ua rau puas tsuaj.

Ntsiab Technical Parameters