K19 mafuta kuthamanga sensa 2897690 kwa Cummins injini dizilo Chalk

1. Semiconductor varistor mtundu intake pressure sensor.

(1) Mfundo yoyezera ya semiconductor piezoresistive pressure sensor Semiconductor piezoresistive pressure sensor imagwiritsa ntchito mphamvu ya piezoresistive ya semiconductor kuti isinthe kupanikizika kukhala chizindikiro chofanana ndi magetsi, ndipo mfundo yake ikuwonetsedwa mu Chithunzi 8-21.

Semiconductor strain gauge ndi mtundu wa chinthu chovutirapo chomwe mtengo wake wokana umasintha chimodzimodzi ukakokedwa kapena kukanikizidwa. Ma geji amtunduwu amalumikizidwa ndi silicon diaphragm ndikulumikizidwa kuti apange mlatho wa Wheston. Silicon diaphragm ikapunduka, choyezera chilichonse chimakoka kapena kukanikizidwa ndipo kukana kwake kumasintha, ndipo mlathowo umakhala ndi mphamvu yofananira.

(2) Mapangidwe a piezoresistive intake pressure sensor Mapangidwe a semiconductor piezoresistive intake pressure sensor akuwonetsedwa mu Chithunzi 8-22. Pali silicon diaphragm pakusintha kwamphamvu kwa sensor, ndipo kupindika kwa silicon diaphragm kumatulutsa ma siginecha ofanana. Mbali imodzi ya silicon diaphragm ndi vacuum, ndipo mbali inayo imayambitsidwa ndi kuthamanga kwa chitoliro. Pamene kupanikizika kwa chitoliro cholowetsa kumasintha, kusinthika kwa diaphragm ya silicon kudzasintha moyenerera, ndipo chizindikiro chamagetsi chofanana ndi kuthamanga kwa kudya chidzapangidwa. Kuchuluka kwa mphamvu yolowera, kumapangitsa kusinthika kwa silicon diaphragm komanso kutulutsa mphamvu kwa sensa.

The semiconductor varistor mtundu wa intake pipe pressure sensor ili ndi ubwino wa mzere wabwino, kukula kwazing'ono, kulondola kwakukulu ndi makhalidwe abwino oyankha.

1) Mtundu wozindikira pafupipafupi: ma frequency oscillation a oscillation circuit amasintha ndi mphamvu ya capacitance ya chinthu chovuta kwambiri, ndipo pambuyo pokonzanso ndi kukulitsa, chizindikiro cha pulse ndi ma frequency olingana ndi kukakamiza chimatuluka.

2) Mtundu wozindikira mphamvu yamagetsi: kusintha kwa kuchuluka kwa mphamvu ya chinthu chovuta kupanikizika kumasinthidwa ndi mafunde onyamula ndi AC amplifier circuit, kuchotsedwa ndi detector circuit, kenako kusefedwa ndi fyuluta yozungulira kuti itulutse siginecha yamagetsi yogwirizana ndi kusintha kwamphamvu.