1. Detection range:
Outer diameter: φ20-φ90㎜
Wall thickness: 2-10㎜ (wall thickness/outer diameter ≤0.2)
Length: 3m-12m
2. Detection speed: φ≤45㎜, 30m/min, φ≥45㎜, 20m/min
3. Detection sensitivity: in accordance with GB/T5777-96, aviation C3 level (artificial wound depth minimum 0.1㎜ length 7㎜)
4. Zhou Xiangling Sensitivity difference: ≤4dB
5. Difference in sensitivity of inner and outer wall defects: ≤4dB
6. Signal-to-noise ratio: ≥8dB (to be completed by both the supply and demand parties)
7. False alarm rate: ≤3%
8. Missing alarm rate: ≤1.5%
9. Blind area at pipe end: ≤200㎜
10. Stability: Fluctuation ≤2dB after two hours of work
11. Defect marking error: ±30㎜
12. Automatic loading, automatic unloading, and automatic sorting.
