发明名称 |
A METHOD OF ENCODING AND DECODING A GLASSY ALLOY STRIP TO BE USED AS AN IDENTIFICATION MARKER |
摘要 |
A process for making a large number of magneto-mechanically resonant markers having distinct resonant characteristics is disclosed. The process comprises modifying at least one surface of a glassy metal alloy strip so as to cause the effective length of the alloy strip to be different from the physical length thereof. Resonant markers comprising alloy strips treated by the process of the present invention display unique and distinguishable resonant characteristics which gives the marker a unique identity. The resonant markers can be used for article surveillance, inventory control and personnel identification. |
申请公布号 |
WO9304538(A1) |
申请公布日期 |
1993.03.04 |
申请号 |
WO1992US06643 |
申请日期 |
1992.08.07 |
申请人 |
ALLIED-SIGNAL INC. |
发明人 |
VONHOENE, ROBERT, MICHAEL;HASEGAWA, RYUSUKE |
分类号 |
C21D1/34;C22F3/00;G01V15/00;G08B13/24;H01F1/153;H04B1/59 |
主分类号 |
C21D1/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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