| 摘要 |
This invention relates to the use of a tag device 4 such as a RFID tag 4 communicating with a master tag for indicating acceptable or not acceptable states of a fastener 12, fastened joint 12a, or an assembled product. It is desirable to have a way of learning of a loosened or damaged fastened joint 12a or fastener 12 immediately, for safety or security purposes. This invention can indicate to a user by remote activation when a change in a fastened joint 12a or fastener 12 is present by attaching at least one tag device 4 utilizing go/no go sensing to the fastened joint 12a or fastener 12 and using a device 14 capable of receiving signals from the tag device 4.
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