K19 khatello ea mafura sensor 2897690 bakeng sa lisebelisoa tsa enjene ea dizeli ea Cummins

1. Semiconductor varistor mofuta oa khatello ea maikutlo.

(1) Molao-motheo oa ho lekanya oa semiconductor piezoresistive khatello ea sensor The semiconductor piezoresistive pressure sensor e sebelisa phello ea piezoresistive ea semiconductor ho fetola khatello hore e be pontšo ea motlakase e lumellanang, 'me molao-motheo oa eona o bontšoa ho Setšoantšo sa 8-21.

Semiconductor strain gauge ke mofuta oa ntho e hlokolosi eo boleng ba eona ba ho hanyetsa bo tla fetoha ka ho tšoana ha e huloa kapa e hatelloa. Li-gauge tsa khatello li hokahantsoe le silicon diaphragm mme li hokahane ho etsa borokho ba Wheston. Ha silicon diaphragm e holofetse, tekanyo e 'ngoe le e' ngoe ea khatello ea huloa kapa e hatelloa 'me ho hanyetsa ha eona ho fetoha,' me borokho bo tla ba le tlhahiso ea motlakase e tsamaellanang.

(2) Sebopeho sa piezoresistive intake pressure sensor Sebopeho sa semiconductor piezoresistive intake pressure sensor se bontšoa ho Setšoantšo sa 8-22. Ho na le silicon diaphragm karolong ea phetoho ea khatello ea sensor, 'me deformation ea compression ea silicon diaphragm e tla hlahisa matšoao a tšoanang a motlakase. Lehlakore le leng la silicon diaphragm ke vacuum, 'me lehlakore le leng le hlahisoa ka khatello ea lipeipi tse kenang. Ha khatello ea phaephe ea ho kenya e fetoha, deformation ea silicon diaphragm e tla fetoha ka tsela e nepahetseng, 'me pontšo ea motlakase e lumellanang le khatello ea ho kenngoa e tla hlahisoa. Ha khatello ea ho kena e le kholoanyane, ho na le ho senyeha ho hoholo ha silicon diaphragm le khatello e kholo ea tlhahiso ea kutlo.

Sensor ea khatello ea mofuta oa semiconductor varistor e na le melemo ea linearity e ntle, boholo bo nyane ba sebopeho, ho nepahala ho phahameng le litšobotsi tse ntle tsa karabelo.

1) Mofuta oa ho lemoha maqhubu: maqhubu a oscillation a potoloho ea oscillation a fetoha ka boleng ba capacitance ea ntho e nang le khatello ea maikutlo, 'me ka mor'a ho lokisoa le ho matlafatsa, lets'oao la pulse le maqhubu a lumellanang le khatello le hlahisoa.

2) Mofuta oa ho lemoha ha motlakase: phetoho ea boleng ba capacitance ea ntho e nang le khatello ea maikutlo e fetotsoe ke carrier wave le AC amplifier circuit, e theoleloa ke potoloho ea detector, ebe e sefshoa ka potoloho ea filthara ho hlahisa lets'oao la motlakase le lumellanang le phetoho ea khatello.