Speed estimation for robotic fish based on pressure sensor

Based on pressure sensor, a speed estimation method for robotic fish is presented in this paper. Based on property of pressure sensor, the relation model between pressure and speed is fitted by experimental analysis. Using this relation model, the swimming speed of robotic fish can be calculated by pressure. A validation experiment was conducted with a freely swimming robot. The experiment results demonstrated the feasibility and accuracy of this measure method, which providing a new way to measure the swimming speed of robotic fish.