Fuel pressure sensor 3083716 ya Dongfeng motor excavator

Pressure sensor ndi chipangizo chokhala ndi zinthu zovutirapo, zomwe zimayesa kuthamanga kwa gasi kapena madzi kudzera pa diaphragm yopangidwa ndi chitsulo chosapanga dzimbiri ndi silicon. Mukamagwiritsa ntchito sensor yokakamiza, zovuta zina zimawonekera, monga phokoso. Kodi phokosoli likuyambitsa chiyani? Izi zikhoza kukhala chifukwa discontinuity wa mkati conductive particles, kapena kuwombera phokoso kwaiye zipangizo semiconductor. Zifukwa zina zidzafotokozedwa mwatsatanetsatane pansipa.

Zifukwa za phokoso mu sensor pressure

1. Phokoso lotsika kwambiri la sensor yokakamiza makamaka limayamba chifukwa cha kutha kwa ma conductive particles amkati. Makamaka chifukwa cha kukana filimu ya kaboni, nthawi zambiri pamakhala tinthu tating'onoting'ono tating'ono ta kaboni, ndipo tinthu tating'onoting'ono timatha. M'kati mwa kayendedwe kamakono, ma conductivity a resistor adzasintha, ndipo zamakono zidzasinthanso, zomwe zimabweretsa kung'anima kwa arc mofanana ndi kukhudzana kosauka.

2. The anamwazikana tinthu phokoso opangidwa ndi zida za semiconductor makamaka chifukwa cha kusintha kwa voteji pa chotchinga dera pa malekezero onse a semiconductor PN mphambano, zomwe zimabweretsa kusintha kwa ndalama anasonkhanitsa m'dera lino, motero kusonyeza chikoka cha. kuthekera. Pamene mphamvu yachindunji imachepa, chigawo chochepa cha ma electron ndi mabowo chimakula, chomwe chiri chofanana ndi capacitor discharge.

3. Pamene magetsi osinthika akugwiritsidwa ntchito, dera la kuchepa limasintha mosiyana. Pamene panopa ikuyenda m'dera lotchinga, kusintha kumeneku kudzachititsa kuti madzi akuyenda m'dera lotchinga asinthe pang'ono, motero amatulutsa phokoso lamakono. Nthawi zambiri, pamagulu amagetsi amagetsi pa board sensor circuit, ngati pali zosokoneza, ma board ambiri ozungulira amakhala ndi zida zamagetsi monga ma relay ndi ma coils. M'kati mwa kuyenda kosasunthika kwamakono, inductance ya koyilo ndi mphamvu yogawidwa ya chipolopolocho chimatulutsa mphamvu pafupi. Mphamvu zidzasokoneza mabwalo apafupi.

4. Gwirani ntchito mobwerezabwereza ngati ma relay ndi zigawo zina. Kuyatsa ndi kuzimitsa magetsi kumatulutsa pompopompo reverse high voltage ndi ma surges apompopompo. Mphamvu yamagetsi yanthawi yomweyo idzakhudza kwambiri dera, zomwe zidzasokoneza kwambiri ntchito yanthawi zonse yamagetsi. Dera.