Mota injini yemafuta yakajairika njanji yekumanikidza switch sensor 1875784c92

1.Principle yekuvhiya

Nheyo yekushanda yesimbi yekudzivirira kwesimbi Strin Gauge ndicho chiitiko chekurwisa chinoshambadzira pane base yekushongedza shanduko, inowanzozivikanwa sekurwisa kusagadzikana maitiro. Iko kukosha kwekupokana kwesimbi conductor kunogona kuratidzwa nenzira inotevera formula:

R = ρ

Kupi: ρ-kuramba kwesimbi conductor (ω / m)

S-- Muchinjiko-Chikamu Nzvimbo yeConductor ()

L-refu urefu conductor (m)

Ngatitorei kupokana newaya yesimbi semuenzaniso. Kana waya yesimbi inoiswa pasi peimba yekunze, kureba kwayo uye nzvimbo yemuchinjiko-chikamu ichachinja. Kubva pane iyo nzira iri pamusoro, inogona kuoneka nyore kuti kukosha kwaro kunopesana kuchachinja. Kana iyo simbi waya yakatambanudzwa nesimba rekunze, kureba kwayo kuchawedzera uye nzvimbo yaro yemuchinjiko kuchaderera, uye kukosha kwaro kupikisa kuchawedzera. Kana waya iri kumanikidzwa neyekunze simba, kureba kunoderera uye chikamu chemuchinjiko chinowedzera, uye kukosha kwekudzivisa kunoderera. Chero bedzi shanduko yekupokana kuchiyerwa (kazhinji voltage pane kupokana kunoyerwa), mamiriro ekutambisa aya waya anogona kuwanikwa.

2.Princuple application

Iyo Corrosion-inodzivirira Ceramic kumanikidza Sensor haina kutapurirana, uye kumanikidza zvakananga zviitiko zvepamberi peCeramic diaphragm, zvichikonzera diaphragm yekuve yakaremara zvishoma. Kukanda firimu resters rakadhindwa kumashure kumashure kweiyo ceramic diaphragm uye yakabatana kuti iite gorangetone bhiriji (yakavharwa bhiriji). Nekuda kweiyo piezodza mhedzisiro yeiyo piezoresistor, bhiriji rinogadzira mutsara wenhoroondo vhasi chiratidzo chakaunganidzwa mukumanikidza uye zvakare kuenderana neiyo hurukuro yekunyora. Iyo standard chiratidzo inoenderana se2,0 / 3.0 / 3.3 mv / v zvinoenderana nekumanikidza kwakasiyana. Kuburikidza ne laser calibration, sensor ine yakanyanya kupisa tembiricha uye nguva yekugadzikana. Iyo sensor ine yayo yekushambadzira yekushambadzira ye 0 ~ 70 ℃ uye inogona kuve yakananga kusangana nevazhinji midhiya.

CERAMIC Icho Chinyorwa chinozivikanwa Nekukwira Kwekuwedzera, Kupokana, kupfeka kupokana, kukanganisa kuramba uye kushushikana kukuru. Kugadzikana kwekutonga kweCeramics uye kupokana kwefirimu kwaro kunogona kuita kuti tisayiricha yayo yekudziya yakakwira seyakawirwa ne-40 ~ ℃, uye ine chaiyo yekujekesa uye kugadzikana mukuyera. Magetsi emagetsi degree> 2kv, yakasimba yekubuda chiratidzo uye yakanaka nguva yakareba. Ceramic sensors nehunhu hwepamusoro uye mutengo wakaderera uchave wekusimudzira nzira yekumanikidza sensors. MuEurope neAmerica, pane maitiro ekutsiva zvachose mamwe marudzi evanonzwisisa. MuChina, vazhinji vashandisi vanoshandisa ceramic sensors kutsiva kusashandiswa silicon kudzvinyirira sensors.