Research on the Crack Characteristics of Submarine Pipeline Detection Leaf Spring based on Scorpion Micro Vibration Sensor

Marine oil and gas pipelines are responsible for transporting marine oil and gas products and play an important role in the production process of oil and gas fields. Marine pipelines work in harsh seawater environments for a long time and are susceptible to corrosion, impact, and defects such as cracks and corrosion under the combined action of various loads. To accurately measure the morphology and size of defects, it is necessary to increase the strain sensitivity coefficient of the leaf spring, amplify and collect the small vibration signal at the end of the leaf spring, and improve the detection accuracy of the leaf spring detection sensing arm. Add a biomimetic scorpion surface micro vibration sensor with a fine slit structure to the leaf spring, forming a tip amplification stress field at the detection point to improve the accuracy and sensitivity of strain gauge detection.