Long-term flow field three-dimensional monitoring device and manufacturing method thereof

The invention provides a long-term flow field three-dimensional monitoring device which consists of unidirectional tubular flowmeters and a fixed support. The three-dimensional monitoring device is characterized in that two parallel unidirectional tubular flowmeters with opposite circulation directions can form a group of duplex tubular flowmeters; and three groups of the duplex unidirectional tubular flowmeters are fixedly arranged on the same horizontal shaft in a pairwise vertical manner and then placed on the fixed support to form the long-term flow field three-dimensional monitoring device. The manufacturing method of the three-dimensional monitoring device comprises the following steps: selecting dies of components, manufacturing and molding the dies of the components, assembling the molded dies of the components and forming a production line of the inventive long-term flow field three-dimensional monitoring device. The long-term flow field three-dimensional monitoring device has the advantages of simple structure, scientific design, stronger practicability and greater convenience, thus conveniently realizing long-term three-dimensional status monitoring of large-scale water areas such as oceans, lakes and the like or other flow fields as well as long-term investigation and monitoring of environmental conditions of the flow fields. Therefore, the three-dimensional monitoring device is economical and practical and is suitable for wide popularization.