Patent ID: 7256576
Filing Date: 2007-08-14
Classification: F16L,G01N

Abstract:
1. A sensor body for use in a pig for determining characteristics of a pipeline wall though which the pig passes, the sensor body comprising: a circuit board; a single coil wrapped around the circuit board; a microcontroller mounted to the circuit board and connected with the single coil for inducing a waveform on the coil to thereby create an eddy current in the pipeline wall adjacent the sensor body, and the microcontroller measuring changes in a characteristic of the induced waveform on the single coil that correspond to the presence of anomalies on an inside diameter of the pipeline wall, and a sensor body cover molded about the circuit board, the microcontroller and the single coil, and the sensor body cover consisting essentially of a wear resistant, non-conductive material that includes a polymer material.