Water flow velocity and direction sensor

Abstract

The invention provides a water flow velocity and direction sensor and belongs to the technical field of sensors. The water flow velocity and direction sensor comprises a universal plate, wherein one side edge of the universal plate is fixedly connected with a steering shaft, and the upper part of the steering shaft is rotatably connected with a rack base; a supporting frame is arranged above the rack base, a first cam and a second cam sequentially sheathe on the upper end of the steering shaft, and the left end of the first cam and the right end of the second cam are respectively connected with the supporting frame by virtue of a horizontal stretchable element; a water wheel is arranged in a hollow universal plate, a gear coaxially fixed with the water wheel is in single tooth meshing withthe tail end of a lever, the middle part of the lever is hinged on the universal plate, the other end of the lever is hinged with a conduction shaft, and the top of the conduction shaft runs throughthe rack base and is connected with the supporting frame by virtue of a vertical stretchable element; a strain grating connected with a receiver is arranged on the horizontal stretchable element and the vertical stretchable element respectively. Water flow impacts the universal plate and the water wheel to rotate, water flow direction is measured by virtue of strain difference of the strain grating on the horizontal stretchable element, and flow velocity is measured by virtue of strain change frequency sensed by the strain grating on the vertical stretchable element.

Description

technical field [0001] The invention belongs to the technical field of sensors, and more specifically relates to a water flow velocity flow direction sensor. Background technique [0002] During the long-term use of offshore structures, they are constantly affected by factors such as the erosion of ocean currents, the impact of ocean waves, and the growth of marine organisms, resulting in dynamic softening of the foundation of offshore structures and erosion and aging of materials, resulting in attenuation of offshore structural components and overall resistance. , affecting the safety and durability of the structure. Therefore, long-term monitoring of ocean currents is of great importance to grasp the performance evolution of offshore structures, evaluate the working status of structures, carry out targeted and reasonable maintenance, avoid various safety accidents, ensure the safety of offshore structures and increase their service life. Significance, and the direction of...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sensor for flow velocity and direction of water flow, so as to solve the technical problems of traditional flow velocity and direction measuring instruments in the prior art that the signal is easily interfered, the measurement error is large, the circuit is complex and the failure rate is high

Images