Isibonakaliso sejubane ngokuqondile ingenye yezinsimbi eziyisithupha zokuhamba indiza endizeni. I-VSI isitshela umshayeli ukuthi ngabe indiza ikhuphuka, yehla noma indiza yendiza. Isibonakaliso sejubane esifanayo sinikeza ulwazi lwezinga ezinyaweni ngomzuzu (fpm) ngokukhuphuka noma ukwehla. Isibonelo, ukukhuphuka noma ukwehla okufunayo kungenziwa ngamamitha angu-500 ngomzuzu, futhi isibonakaliso se-VSI senza lo msebenzi kube lula.
Cabanga ngesibonakaliso sejubane esilula njengensiza elula yokunemba nokuzinza, ikakhulukazi abaqhubi bezinsimbi . Ngokuhambisana nezinye izinsimbi ezinhlanu eziyisisekelo (i-airspeed, isibonakaliso sengqondo, i-altimeter, i-turnator) futhi i-VSI inikeza umshayeli isibonakaliso esihle sezinga lendiza.
Indlela iVSI isebenza ngayo
Isibonakaliso sejubane esenzakale sakhiwe ngendwangu ngaphakathi ngaphakathi kokufakelwa kwensimbi. I-diaphragm ixhunyiwe ngokuxhuma kanye namagaresi enaliti ebusweni bensimbi. Imigudu yokucindezela eqondile ixhunywe kokubili ngaphakathi kwe-diaphragm kanye ne-casing casing. I-casing ezungeze le-diaphragm inomfutho we-metered, osiza ukubonisa izinga lokukhuphuka kwehla.
Izinguquko zokucindezela zilinganiswa ngokushesha ngaphakathi kwe-diaphragm njengoba ikhula futhi izivumelwano zisuka ekucindezelekeni. Ukuvuza kwe-metered ezakhiweni zezingubo ezizungezile kufana nokulinganisa ukuguqulwa kwengcindezi, kodwa ukuvuza kuhlinzeka ngokugaya ngenhloso, ukuvumela insimbi ukuthi ihlole ingcindezi ishintshe kancane kancane kunaphakathi kwe-diaphragm.
Lokhu kutholakala kuvela ekucindezeni okuqhubekayo nokuvuza nokulinganisa okuhambisanayo kokukhuphuka noma ukwehla njengoba kulinganiswa ngenaliti yensimbi ezinyaweni ngomzuzu. Ngemuva kwemizuzwana embalwa yendiza yezindiza, izingcindezi ezimbili zilingana futhi isibonakaliso sokuhamba sejubane sibonisa 'izinyawo ezingu-0' ngomzuzu (fpm).
Umphumela wokukhuphuka noma ukwehla kuboniswa ngesibonakaliso sejubane sokuqala njengolwazi lomkhuba (okusho, ukukhuphuka okungazelelwe noma ukwehla) bese kuboniswa njengolwazi lwezinga (isibonelo, 400 fpm).
Amaphutha nokulinganiselwa
I-Turbulence : Isibonakaliso sejubane esiqondile asilungile ngesikhathi sokuqhuma futhi lapho kuqhutshwa ngokungazelelwe. I-lag ebandakanya ukuvuza okulinganiselwe cishe imizuzwana eyisithupha kuya kweyisishiyagalolunye, ukunikeza isibonakaliso esisheshayo esisheshayo singenasidingo lapho kuqhuma ukuqhuma. Uma ukushayisana kuhlangene, umshayeli wezinyathelo kufanele azame ukugcina isimo sengqondo esifanele sokusebenzisa isimo sokubonisa isimo sengqondo noma okushiwo ngaphandle kokubonwayo, esikhundleni sokuthi "ukuxosha inaliti" noma ukuzama ukugcina isilinganiso esiqinile.
Ukuvinjwa kwe-Port Static : Uma i-port static ivinjiwe, efana ne-altimeter , isibonakaliso sejubane esiqondile sizokhombisa '0' futhi akukho ushintsho oluzoboniswa noma ukukhuphuka noma ukwehla. Kodwa-ke, ezinye izindiza zihlonyelwe umthombo owodwa wesimo esinikezela umthombo owodwa we-static air kuma-flight instruments lapho kwenzeka ukuvinjelwa komugqa omkhulu we-static.