| 摘要 |
An apparatus and method for identifying and verifying gemstones. The principle is carried out by pre-recording the frequency response spectrum of gemstones, storing the pre-recorded frequency response spectrum, and using the stored frequency response spectrum to identify and verify gemstones thereafter. The apparatus includes an exciter, an acoustic receiver, a digital control module, a storage module, and an identification module. After properly disposing a specimen gemstone, the exciter sends exciting signals to the specimen gemstone, then the specimen gemstone being excited emits unique acoustic signals; the acoustic receiver receives the unique acoustic signals; the acoustic signals are then transferred to the digital control module; the digital control module transforms the received acoustic signals to the frequency response spectrum of the specimen gemstone, and then sends the frequency response spectrum to the storage module for storage; the identification module fetches the stored data from the storage module to identify and verify the gemstone. The identifying and verifying method is convenient, rapid and with low cost; more importantly, it causes no damage to the gemstone itself.
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