Abstract
In acquiring a signal from a vibrating body, commercial low‐noise cable generates some noise and it has sufficient stiffness and mass to affect the motion of compliant vibrating bodies such as sheet metal or thin rods. Connectors developed for piezoelectric polymer gages are more satisfactory. These consist of a pair of polymer ribbons typically 25 μm thick and 3 mm wide. Each ribbon has a strip of vapor‐deposited metal typically about 1 mm wide and a few tens of nanometers thick down one side and a coating of vapor‐deposited metal over the other side. The connector consists of two such ribbons cemented to each other so that the vapor‐deposited strips come together. The outer coatings form a shield at ground potential. Such a connector is more flexible and lighter than commercial cable. A polymer vapor‐deposited connector and a commercial cable of the same unsupported length were each connected to a dummy sensor on a shake table and the noise generated by each was measured when the shaker was driven over a wide range of frequencies. The results are presented.
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