Sistemụ ịnya ụgbọ elu dị elu bụ akụrụngwa bụ isi nke njikwa igodo ụgbọ elu yana ọgụ ziri ezi nke sistemu ngwa ọgụ ya.Atụmatụ ya bụ isi gụnyere atụmatụ ikpo okwu na atụmatụ strapdown. Site na mmepe nke teknụzụ inertial strapdown na gyro optical, strapdown ejiriwo nke ọma mee ihe na ikuku ikuku na uru nke ntụkwasị obi dị elu, ọkụ na obere nha, obere ike oriri na ọnụ ala dị ala.[1-4].Ugbu a, airborne strapdown navigation system bụ nchikota nke laser gyro strapdown navigation system na fiber optic gyro strapdown navigation system. N'ime ha, Northrop Grumman's LN-100G, Honeywell's H-764G laser gyro strapdown navigation system na fiber Lrop-25 A na-eji usoro ịnya ụgbọ mmiri optic gyro strapdown mee ihe n'ọtụtụ ebe n'ime ụgbọ elu ndị agha America[1]Ụlọ ọrụ .Northrop Grumman mepụtara usoro ụgbọ mmiri LN-251 maka helikopta nwere akara dị mkpa nke eriri fiber optic gyro dị elu, wee mepụta LN-260 iji mee mgbanwe na njem ụgbọ elu. The LN-260 bụ ndị US Air Force họpụtara maka avionics upgrade of the F-16 multinational fighter fleet. Tupu ebuga ya, a nwalere usoro LN-260 iji nweta ọnọdụ ziri ezi nke 0.49n mile (CEP), njehie ọsọ nke ugwu nke 1.86ft/s (RMS), na Njehie ngwa ngwa n'ebe ọwụwa anyanwụ nke 2.43ft / s (RMS) na gburugburu ebe dị egwu nke ukwuu. Ya mere, eriri anya strapdown inertial navigation system nwere ike imezu ihe arụ ọrụ nke ụgbọ elu ahụ n'ụzọ zuru ezu na ikike ịnyagharị na nduzi.[1].
E jiri ya tụnyere laser gyro strapdown navigation system, fiber optic gyro strapdown navigation system nwere uru ndị a: 1) ọ dịghị mkpa n'ibu jitter, simplifies usoro usoro na mgbagwoju anya nke vibration ibelata imewe, na-ebelata ibu na ike oriri, na mma ntụkwasị obi nke sistemụ igodo; 2) ụdịdị dị iche iche nke fiber optic gyro na-ekpuchi ọkwa tactical ruo ọkwa dị iche iche, yana sistemụ igodo ya kwekọrọ nwekwara ike mepụta ụdị usoro igodo kwekọrọ, na-ekpuchi ihe niile site na sistemụ omume ruo na sistemụ igodo ogologo ogologo. ụgbọ elu ntachi obi;3) Olu fiber optic gyroscope na-adabere ozugbo na nha eriri eriri.Site na ngwa tozuru etozu nke eriri dayameta dị mma, olu nke gyroscope fiber optic nwere otu izi ezi na-adịwanye ntakịrị, na mmepe nke ìhè na miniaturization bụ ihe a na-apụghị izere ezere.
N'ozuzu atụmatụ imewe
Sistemụ igodo ikuku gyro strapdown nke ikuku na-eche n'ụzọ zuru oke na mgbasa ọkụ na nkewa fotoelectric, wee nabata atụmatụ “ọgba atọ”[6,7], gụnyere oghere IMU, oghere eletrọnịkị na oghere ike nke abụọ.oghere IMU nwere usoro ahụ IMU, mgbanaka mgbanaka eriri anya na quartz mgbanwe accelerometer (quartz gbakwunyere mita); oghere eletrọnịkị nwere igbe gyro fotoelectric, bọọdụ ntụgharị mita, kọmpụta igodo na bọọdụ interface, yana ntuziaka ịdị ọcha. osisi;The secondary cavity comprises a packed secondary power modul, EMI filter, charge-discharge capacitor.The gyro photoelectric box and the optical fiber ring in the IMU cavity together comprises the gyro components, na quartz mgbanwe accelerometer na mita ntụgharị efere efere. ọnụ mejupụtara akụrụngwa accelerometer[8].
Atụmatụ n'ozuzu na-emesi ike nkewa nke ihe ndị dị na fotoelectric na nhazi modular nke akụkụ ọ bụla, na nhazi dị iche iche nke usoro anya na usoro sekit iji hụ na ikpochapụ okpomọkụ zuru oke na nkwụsị nke nnyonye anya cross. Iji meziwanye debuggability na mgbakọ nkà na ụzụ nke ngwaahịa ahụ, a na-eji njikọ jikọọ mbadamba sekit n'ime ụlọ eletrọnịkị, na mgbanaka eriri anya na accelerometer na ụlọ IMU na-emegharị n'otu n'otu.Mgbe emechara IMU, a na-eme mgbakọ ahụ dum.
Igwe sekit dị na oghere eletrọnịkị bụ igbe gyro fotoelectric site n'elu ruo na ala, gụnyere isi iyi ọkụ gyro, onye na-achọpụta na sekit mwepu n'ihu; Ogwe ntụgharị nke tebụl na-emecha ngbanwe nke mgbama accelerometer ugbu a na mgbama dijitalụ; interface sekit gụnyere interface osisi na igodo ngwọta osisi, interface osisi tumadi completes synchronous nnweta nke multi-channel inertial ngwaọrụ data, ike ọkọnọ mmekọrịta na mpụga nkwurịta okwu, igodo ngwọta osisi tumadi completes dị ọcha inertial igodo na integrated igodo ngwọta; The ndu osisi tumadi completes na satellite navigation, na-eziga ozi na igodo ngwọta osisi na interface osisi iji mezue ike navigation.The abụọ ike ọkọnọ na interface interface jikọọ site na njikọ, na sekit osisi jikọọ site na njikọ.
Teknụzụ isi
1. Atụmatụ imewe jikọtara ọnụ
The airborne fiber optic gyro navigation system na-aghọta ọkwa isii nke ụgbọ elu nke nchọpụta nnwere onwe nnwere onwe site na ntinye nke ọtụtụ sensọ. Enwere ike ịtụle axis gyro atọ na axis accelerometer maka nhazi nhazi dị elu, belata ike oriri, olu na ịdị arọ.N'ihi na eriri optic. akụkụ gyro, ọ nwere ike kesaa ìhè ọkụ iji mepụta nhazi nhazi atọ axis; Maka akụrụngwa accelerometer, a na-ejikarị quartz accelerometer na-agbanwe agbanwe, na sekit ntụgharị nwere ike ịmepụta naanị n'ụzọ atọ. E nwekwara nsogbu nke oge. mmekọrịta na nnweta data ọtụtụ sensọ.Maka mmelite omume dị elu, ịdịgidesi oge nwere ike hụ na mmelite omume ziri ezi.
2. Nhazi nkewa nke fotoelectric
Gyro fiber optic gyro bụ ihe mmetụta fiber optic dabere na mmetụta Sagnac iji tụọ ọnụego angular. N'ime ha, mgbanaka eriri bụ isi ihe dị mkpa nke ọsọ angular nwere mmetụta nke eriri gyroscope.Ọ na-emerụ ahụ site na ọtụtụ narị mita ruo ọtụtụ puku mita nke fiber. Ọ bụrụ na mpaghara okpomọkụ nke mgbanaka eriri anya na-agbanwe, okpomọkụ na ebe ọ bụla nke mgbanaka eriri anya na-agbanwe na oge, na ọkụ abụọ nke ọkụ ọkụ na-agafe ebe ahụ. n'oge dị iche iche (ma e wezụga n'etiti etiti nke eriri eriri anya), ha na-enweta ụzọ anya dị iche iche, na-eme ka ọdịiche nke oge dị iche iche, nke a na-adịghị agbanwe agbanwe na-agbanwe agbanwe na mgbanwe nke Sagneke na-eme site na ntụgharị. Iji mee ka okpomọkụ dịkwuo mma. arụmọrụ nke gyroscope fiber optic, ihe bụ isi nke gyroscope, mgbanaka eriri, kwesịrị ka ewepụ ya na isi iyi ọkụ.
Maka gyroscope agbakwunyere fotoelectric, ngwaọrụ fotoelectric na bọọdụ sekit nke gyroscope dị nso na mgbanaka eriri anya.Mgbe ihe mmetụta ahụ na-arụ ọrụ, okpomọkụ nke ngwaọrụ ahụ n'onwe ya ga-ebili ruo n'ókè ụfọdụ, ma na-emetụta mgbanaka eriri anya site na radieshon na conduction. Iji dozie mmetụta nke okpomọkụ na mgbanaka eriri anya, usoro ahụ na-eji nkewa nke fotoelectric. na ngwa anya eriri gyroscope, gụnyere ngwa anya ụzọ Ọdịdị na sekit Ọdịdị, abụọ ụdị Ọdịdị onwe nkewa, n'etiti eriri na waveguide akara njikọ.Zere okpomọkụ si ìhè isi igbe na-emetụta eriri okpomọkụ mmetụta uche.
3. Ike na-achọpụta onwe onye nhazi
Fiber optic gyro strapdown navigation system kwesịrị inwe ọrụ nyocha onwe onye na-arụ ọrụ eletrik na ngwaọrụ inertial. N'ihi na usoro igodo ahụ na-etinye ntinye strapdown dị ọcha na-enweghị usoro ntụgharị, a na-emecha nyocha onwe nke ngwaọrụ inertial site na nha static na akụkụ abụọ, ya bụ. , Nnwale nke ngwaọrụ-ọkwa na nyocha onwe nke usoro, na-enweghị mkpali transposition mpụga.
ERDI TECH LTD Soluzioni maka teknụzụ pụrụ iche
| Nọmba | Ụdị ngwaahịa | Ibu | Olu | 10min dị ọcha INS | 30min dị ọcha INS | ||||
| Ọnọdụ | Isi | Àgwà | Ọnọdụ | Isi | Àgwà | ||||
| 1 | F300F | <1kg | 92 * 92 * 90 | 500m | 0.06 | 0.02 | 1.8 nm | 0.2 | 0.2 |
| 2 | F300A | <2.7kg | 138.5 * 136.5 * 102 | 300m | 0.05 | 0.02 | 1.5 nm | 0.2 | 0.2 |
| 3 | F300D | <5kg | 176.8 * 188.8 * 117 | 200m | 0.03 | 0.01 | 0,5 nm | 0.07 | 0.02 |
Oge mmelite: Mee-28-2023
