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APPENDIX C
91
A
PPENDIX
C
TEDS
O
VERVIEW
TEDS (Transducer Electronic Data Sheets) is a smart transducer standard defined as IEEE 1451.4.
The TEDS is a memory device attached to the IEEE 1451.4 compatible transducer that stores the
information of the smart transducer including the transducer identification, sensitivity, calibration,
and manufacturer information.
The IEEE 1451.4 standard defines two classes of interfaces. The class 1 sensors (IEPE) uses coax
connector and the analog and the digital (TEDS) are on the same line. The class 2 is used in bridge
sensor and the analog and the digital lines are separate.
Figure C-7-1: IEEE 1451.4 Class 1 (IEPE)
Figure C-7-2: IEEE 1451.4 Class 2
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