Uniformly distributed lead zirconate titanate strain sensor
View Patent ↗The invention as disclosed is a strain sensor that locates and quantifies the strain energy from a structure. The strain sensor has a lead zirconate titanate wafer with a circular shape such that the shape does not directionally restrict the signal of the sensor.
1. A strain sensor comprising:
a piezo-electric wafer made of lead, zirconate and titanate wherein said piezo-electric wafer has a circular shape with a constant radius thereby making the piezo-electric wafer uniform;
a plurality of wire traces disposed over the surface of the piezo-electric wafer, wherein said pluralities of wire traces are capable of carrying an electric current;
a pin connector joined to the piezo-electric wafer and connected to said plurality of wire traces, wherein the plurality of wire traces carry a voltage out of the piezo-electric wafer and into said pin connector; and
a polyimide film disposed over the piezo-electric wafer and the plurality of wire traces such that said polyimide film serves as an overall protective layer to prevent corrosion and contamination of the piezo-electric wafer and the plurality of wire traces.