Relslar uchun ultratovushning kamchiliklarini aniqlash va identifikatsiyalash texnologiyasini aniqlash texnologiyasi
- Relslar uchun odatiy ultratovush tekshiruvidan so'ng bosqichma-bosqich qarshi kurashning afzalliklari qanday?
Bosqichli massivlar tomonidan 85% dan 98% gacha bo'lgan murakkab usullardan foydalanib, bir nechta podsholarni o'lchash bilan bog'liq bo'lgan dervraton burg'ulash va markaziy ochkolarni sezilarli darajada moslashtiradi. An'anaviy vositalar tomonidan aniqlanmagan 3 mm ko'ndalang yoriqlar .
- Ultrasonik saxo signallari relslarda "charchoqlar yorilishi" va "qo'shimchalar" ni farqlashi mumkinmi?
Fatigue crack echoes are sharp, high-amplitude, and show multiple reflections; inclusion echoes are irregular with lower amplitudes. Analyzing time-domain (pulse width, rise time) and frequency-domain (spectrum distribution) features, combined with ANN algorithms, achieves >90% defektsiya aniqlik . Ushbu usuldan foydalangan temir yo'l inspektsiyali transport vositasi 85% yoriqlar va qo'shimchalar .
- Temir yo'lli ultratovush tekshiruvida "ko'r zonalar" nima sabab bo'ladi va ular qanday qilib yo'q qilinishi mumkin?
Ozi zonalari 5 - 10 ü} mm er osti zonasi yoki ikki tomonlama mato zonasi yoki kechikish bloklaridan foydalanadigan dastlabki tomirlarning yaqin hududidan kelib chiqadi<2mm. A metro line initially missed surface cracks due to blind zones but achieved 100% effective detection after improvements.
- Aqlli ultratovush tekshiruv tizimlarining "avtomatiy tuspotatsiyasi" qanday ishlaydi?
Tizim ultrason tasvirlardan iborat xususiyatlarni olish uchun CNNdan foydalanadi, {. turlarini avtomatik ravishda o'zgartiring. 80% .
- Ultrasone testi uchun atrof-muhitni moslashtirishni optimallashtirish choralari qanday?
In high-temperature (>60℃) environments, use high-temperature coupling agents (-40℃- 200℃) and heat-dissipating probes; sovuqda (<-20℃) conditions, apply anti-freeze agents and insulate probes. For humidity, develop waterproof probes and moisture-resistant equipment. A desert railway extended effective testing time from 4 to 8 hours per day with these measures.