Author(s): Francesco Ballio; Alessio Radice

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Abstract: A diffuse light intensity photocell coupled with a fiber optic was tested as a non-touch switch sensor for bottom profiling. The device is inexpensive and robust. When mounted on a mechanical positioning carriage it allows continuous scour measurements underwater. Only the fiber optic is immersed in water; therefore the sensor is little intrusive and can be easily used in proximity of side walls. Control tests on a fixed shape showed that the accuracy of the system is appropriate for measurements of local scours. The apparatus was successfully used during mobile bed scour experiments, allowing highly detailed measurements.

DOI: https://doi.org/10.1080/00221680309499934

Year: 2003