Umgaqo kunye nokuhlelwa kwenkungu

Umgaqo kunye nokuhlelwa kwenkungu

(1)umgaqo

Umgaqo wenkungu ubizwa ngokuba yiSagnac effect kwifiziksi. Kwindlela yokukhanya evaliweyo, izibane ezimbini zokukhanya ezivela kumthombo ofanayo wokukhanya ziya kuphazamiseka xa zihlanganiswa kwindawo efanayo yokufumanisa. Ukuba umzila wokukhanya ovaliweyo unokujikeleza ngokubhekiselele kwisithuba se-inertial, umqadi osasaza kwiindlela ezilungileyo kunye nezibi ziya kuvelisa umahluko wendlela yokukhanya, ehambelana nesantya se-angle yokujikeleza ephezulu. I-rotation angle velocity ibalwa ngokusebenzisa umahluko wesigaba esilinganiswa ne-photoelectric detector.

Ukusuka kwifomula, ubude bobude bosinga, kokukhona inkulu iradiyasi yokuhamba ye-optical, kokukhona iba mfutshane i-optical wavelength. Okukhona kugqame ngakumbi umphumo wokuphazamiseka. Ngoko okukhona ubaluleke ngakumbi umthamo wenkungu, kokukhona uphezulu ukuchaneka. Isiphumo se-Sagnac sisiphumo se-relativistic, ebaluleke kakhulu kuyilo lokufuma.
Umgaqo wenkungu kukuba i-beam yokukhanya ithunyelwa kwi-tube ye-photoelectric kwaye idlula kwi-coupler (enye isiphelo singena kwiindawo ezintathu). Imiqadi emibini ingena kwiringi kumacala ahlukeneyo ngeringi ize ibuye ijikeleze isangqa ukuze ifike kwindawo enye. Ukukhanya okubuyiselweyo kubuyela kwi-LED kwaye kuchonge ubunzulu nge-LED. Umgaqo wenkungu ubonakala ulula, kodwa eyona nto ibaluleke kakhulu yindlela yokuphelisa izinto ezichaphazela umzila we-optical wemiqadi emibini-ingxaki ebalulekileyo yokuba yinkungu.

Umgaqo we-fiber optic gyroscope

(2)ukuhlelwa

Ngokomgaqo osebenzayo, i-fiber optic gyroscopes inokohlulwa ibe yi-interferometric fiber optic gyroscope (I-FOG), i-resonant fibre optic gyroscope (R-FOG), kunye ne-Brillouin evuselelweyo esasaza i-fiber optic gyroscope (B-FOG). Okwangoku, eyona gyroscope yefiber optic ye-fiber optic interferometric (isizukulwana sokuqala i-fiber optic gyroscope), esetyenziswa ngokubanzi. Isebenzisa i-coil ye-fiber coil eninzi ukunyusa umphumo we-Sagnac. Ngakolunye uhlangothi, i-interferometer yentsimbi ephindwe kabini eyenziwe nge-multi-turn single-mode fiber coil inokubonelela ngokuchaneka okuphezulu, okuya kwenza ukuba yonke into ibe nzima ngakumbi.
Ngokohlobo lweluphu, inkungu inokwahlulwa ibe yi-open-loop inkungu kunye neFOG evaliweyo. I-open-loop fiber optic gyroscope (Ogg) ineenzuzo zesakhiwo esilula, ixabiso eliphantsi, ukuthembeka okuphezulu, kunye nokusetyenziswa kwamandla aphantsi. Kwelinye icala, ukungalungi kwe-Ogg kuluhlu olubi lwegalelo-imveliso kunye noluhlu oluncinci oluguquguqukayo. Ke ngoko, isetyenziswa ikakhulu njengenzwa ye-engile. Isakhiwo esisisiseko se-IFOG ye-open-loop yindandatho ye-interferometer ephindwe kabini. Ngenxa yoko, isetyenziswe ngokukodwa kwimeko yokuchaneka okuphantsi kunye nomthamo omncinci.
Isalathiso sokusebenza senkungu
Inkungu isetyenziswa ikakhulu ukulinganisa isantya se-angular, kwaye nawuphi na umlinganiselo yimpazamo.

(1)ingxolo

Indlela yengxolo yenkungu igxininiswe kakhulu kwindawo yokubona okanye yokubona umbane wefoto, emisela ubuncinci obubonakalayo bokufuma. Kwi-fiber-optic gyroscope (FOG), iparameter ebonisa ingxolo emhlophe ephumayo yomlinganiselo we-angular yi-coefficient yokuhamba engahleliweyo yokufumanisa i-bandwidth. Kwimeko yengxolo emhlophe kuphela, inkcazo ye-coefficient yokuhamba ngokungahleliwe ingenziwa lula njengomlinganiselo wokulinganiswa kozinzo lwe-bias ukuya kwingcambu yesikwere se-bandwidth yokufumanisa kwi-bandwidth ethile.

Ukuba kukho ezinye iindidi zengxolo okanye ukukhukuliseka, siqhele ukusebenzisa uhlalutyo luka-Allan lomahluko ukufumana i-coefficient yokuhamba ngendlela eyiyo.

(2)Zero drift

Ubalo lwe-engile luyafuneka xa usebenzisa inkungu. I-angle ifunyenwe ngokudibanisa kwe-angular velocity. Ngelishwa, i-drift iqokelelwa emva kwexesha elide, kwaye impazamo iya ikhula kwaye ibe nkulu. Ngokuqhelekileyo, kwisicelo sokuphendula ngokukhawuleza (ixesha elifutshane), ingxolo ichaphazela kakhulu inkqubo. Sekunjalo, kwisicelo sokukhangela (ixesha elide), i-zero drift inempembelelo ebalulekileyo kwinkqubo.

(3)Imeko yesikali (imeko yesikali)

Incinci impazamo yesikali, kokukhona ichaneka ngakumbi isiphumo somlinganiselo.

I-Beijing Rofea Optoelectronics Co., Ltd. ebekwe eTshayina “kwiSilicon Valley” – iBeijing Zhongguancun, lishishini lobugcisa obuphezulu obuzinikele ekukhonzeni amaziko ophando asekhaya nawangaphandle, amaziko ophando, iiyunivesithi kunye nabasebenzi bophando lwezenzululwazi kushishino. Inkampani yethu ibandakanyeka ikakhulu kuphando oluzimeleyo kunye nophuhliso, uyilo, ukuvelisa, ukuthengisa iimveliso ze-optoelectronic, kwaye ibonelela ngezisombululo ezintsha kunye neenkonzo zobuchwephesha, ezenzelwe umntu abaphandi besayensi kunye neenjineli zeshishini. Emva kweminyaka yokwenziwa kwezinto ezizimeleyo, yenze uluhlu olutyebileyo nolugqibeleleyo lweemveliso zombane, ezisetyenziswa kakhulu kumasipala, emkhosini, kwezothutho, kumandla ombane, ezemali, ezemfundo, ezonyango kunye namanye amashishini.

Sijonge phambili kwintsebenziswano nawe!