Attachment thickness detection method and detection device

The invention discloses an attachment thickness detection method, which comprises the steps of transmitting a first frequency sound wave to a metal surface along a first direction, receiving the first frequency sound wave reflected back from the metal surface, and acquiring first time of the first f...

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Bibliographische Detailangaben
Hauptverfasser:	BAO YAWEN, MA LAIKAI, LI ZHIQIANG, CHEN ZHI, WANG PAN, CHEN YUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEDICAL OR VETERINARY SCIENCE PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The invention discloses an attachment thickness detection method, which comprises the steps of transmitting a first frequency sound wave to a metal surface along a first direction, receiving the first frequency sound wave reflected back from the metal surface, and acquiring first time of the first frequency sound wave from a transmitting moment to a receiving moment; transmitting a second-frequency sound wave to a non-metal attachment attached to the metal surface along the first direction, receiving the second-frequency sound wave reflected back from the surface of the non-metal attachment, and acquiring a second time of the second-frequency sound wave from a transmitting moment to a receiving moment; and obtaining the thickness of the non-metal attachment in the first direction based on the first time and the second time. According to the detection method disclosed by the invention, the two kinds of substances are respectively detected through the sound waves with the two frequencies, so that the thickness