Pressure sensors chinhu chakakosha mumaindasitiri mazhinji, ichipa kugona kuyera nemazvo uye nekuvimbika kuyera kudzvanywa mumashandisirwo akasiyana siyana.Imwe mhando yekumanikidza sensor iyo yakawana mukurumbira mumakore achangopfuura igirazi micro-melt sensor, iyo yakatanga kugadzirwa neCalifornia Institute of Technology muna 1965.
Iyo girazi micro-melt sensor inoratidzira yakakwirira-tembiricha yegirazi poda yakanyudzwa kuseri kwe17-4PH yakaderera-kabhoni simbi mhango, ine mhango pachayo yakagadzirwa ne17-4PH simbi isina tsvina.Iyi dhizaini inobvumira kudzvinyirira kwakanyanya uye kunoshanda kupikisa kune kamwe kamwe kudzvinyirirwa kuvhunduka.Pamusoro pezvo, inokwanisa kuyera zvinwiwa zvine hutsvina hudiki pasina kudiwa kwemafuta kana ma diaphragms ekuzviparadzanisa nevamwe.Kuvakwa kwesimbi isina tsvina kunobvisa kudiwa kweO-mhete, kuderedza dambudziko rekusunungurwa kwekushisa.Iyo sensor inogona kuyera kusvika ku600MPa (6000 bar) pasi pemamiriro ekumanikidzwa kwepamusoro nepamusoro-soro-chaiyo chigadzirwa che0.075%.
Nekudaro, kuyera madiki madiki negirazi micro-melt sensor inogona kunetsa, uye inowanzo shandiswa chete kuyera mitsara pamusoro pe500 kPa.Mumashandisirwo apo yakakwira voltage uye yakakwirira chaiyo kuyerwa kunodiwa, iyo sensor inogona kutsiva yechinyakare yakapararira silicon pressure sensors nekunyanya kushanda nesimba.
MEMS (Micro-Electro-Mechanical Systems) tekinoroji-based pressure sensors imwe mhando ye sensor yakawana mukurumbira mumakore achangopfuura.Aya masensa anogadzirwa achishandisa micro/nanometer-sized silicon strain gauges, iyo inopa yakakwira kubuda senitivity, kuita kwakagadzikana, yakavimbika batch kugadzirwa, uye yakanaka kudzokorora.
Girazi micro-melt sensor inoshandisa tekinoroji yepamberi apo iyo silicon strain geji inonyudzwa pane 17-4PH simbi isina tsvina ine elastic muviri mushure mekunge girazi ranyunguduka pakupisa kuri pamusoro pe500 ℃.Kana theelastic bodyundergoescompression deformation, inogadzira chiratidzo chemagetsi chinokwidziridzwa nedhijitari muripo wekusimudzira wedunhu ine microprocessor.Chiratidzo chinobuda chinobva chaiswa pasi pehungwaru tembiricha muripo uchishandisa digital software.Munguva yeyakajairwa kucheneswa kugadzirwa maitiro, maparamita anodzorwa zvakanyanya kudzivirira kukanganiswa kwekushisa, humidity, uye kuneta kwemechanical.Iyo sensor ine yakakwira frequency mhinduro uye yakakura yekushanda tembiricha renji, ichivimbisa kugadzikana kwenguva refu munzvimbo dzakaomarara dzeindasitiri.
Iyo yakangwara tembiricha muripo wedunhu inokamura shanduko yetembiricha kuita mayuniti akati wandei, uye zero chinzvimbo uye kukosha kwemuripo wechikamu chimwe nechimwe zvakanyorwa muchikamu chemuripo.Panguva yekushandiswa, aya makoshero anonyorwa mune analog yekubuda nzira inokanganiswa nekupisa, nenzvimbo yega yega tembiricha iri "calibration tembiricha" yemupepeti.Iyo dhijitari yedhijitari ye sensor yakanyatsogadzirirwa kubata zvinhu zvakaita se frequency, electromagnetic interference, uye surge voltage, ine yakasimba anti-kupindira kugona, yakakura magetsi ekupa huwandu, uye polarity kuchengetedzwa.
Imba yekumanikidza yegirazi micro-melt sensor inogadzirwa nekunze 17-4PH simbi isina tsvina, isina O-mhete, welds, kana kuvuza.Iyo sensor ine anoverload kugona kwe300% FS uye kutadza kudzvanywa kwe500% FS, ichiita kuti ive yakakodzera kune yakakwira-kudzvinyirira kuwandisa maapplication.Kuti udzivirire kubva kune kamwe-kamwe kudzvinyirirwa kunotyisa kunogona kuitika mu hydraulic systems, sensor ine yakavakirwa-mukati damping kudzivirira mudziyo.Inoshandiswa zvakanyanya mumaindasitiri anorema akadai seasengineering muchina, muchina chishandiso indasitiri, simbi, makemikari indasitiri, magetsi indasitiri, yakakwirira-kuchena gasi, hydrogen pressure kuyerwa, uye michina yekurima.
Nguva yekutumira: Kubvumbi-19-2023