A Study on the Non-Intrusive Pipeline Pressure Monitoring Sensor Using Force Sensing Resistor (FSR)

Various leakage detection techniques have been researched to prevent increased pipeline failures and corresponding human and economic losses. In this study, a non-intrusive pipeline pressure monitoring sensor that can be installed outside the pipe is proposed. First, we defined the concept and analytical model of the non-intrusive pipeline pressure monitoring sensor, which was based on the correlation between the contact force on a force sensing resistor (FSR) and the pressure in a pipe. Next, a parametric study was conducted using a 6-inch pipe to design the shape and operating circuit of the non-intrusive sensor. Based on the derived design parameters, a wireless non-intrusive pipeline pressure monitoring sensor was manufactured, and it's performance on monitoring the internal pressure of the pipe was validated in the testbed.