Fecha de publicación: 27/03/2023 Fuente: Wipo "Sensorization" Systems, methods, and devices for fluid conduit inspection using absolute velocity of a sensor device are provided. The method includes: receiving sensor data collected by a sensor device during a measurement run from an interior of the fluid conduit while traveling along a length of the fluid conduit, the sensor device including a first magnetometer and a second magnetometer each having a fixed position in the sensor device, the fixed positions defining a separation distance between the first magnetometer and second magnetometer, the sensor data including magnetic flux data comprising first magnetic flux data collected by the first magnetometer and second magnetic flux data collected by the second magnetometer; determining a time delay between when a magnetic signal is present in the first magnetic flux data and when the magnetic signal is present in the second magnetic flux data; determining an absolute velocity of the sensor device.