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Heritage Science
Fig. 6 | Heritage Science

Fig. 6

From: Nondestructive characterization and artificial intelligence recognition of acoustic identifiers of ancient ceramics

Fig. 6

Ceramics measuring point positioning measuring device and schematic diagram; a schematic diagram of positioning laser and directional laser; b reflective film at the location of the directional laser point; c directional laser and reflective film at positioning point; d positioning laser and reflective film at measuring point; e frequency domain curves of the ceramic cup sample were measured three times

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