CPC Subgroup Additional Only
G01N 2291/04 Wave modes and trajectories
Full Title
Indexing codes associated with group G01N29/00 > Wave modes and trajectories
10 direct subcodes
Child Classifications
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- G01N 2291/042 Wave modes
- G01N 2291/043 Complex trajectories
- G01N 2291/044 Internal reflections (echoes), e.g. on walls or defects
- G01N 2291/045 External reflections, e.g. on reflectors
- G01N 2291/048 Transmission, i.e. analysed material between transmitter and receiver
- G01N 2291/051 Perpendicular incidence, perpendicular propagation
- G01N 2291/052 Perpendicular incidence, angular propagation
- G01N 2291/055 Angular incidence, perpendicular propagation
- G01N 2291/056 Angular incidence, angular propagation
- G01N 2291/057 Angular incidence, parallel to surface propagation