海流计的种类很多,按其传感器的原理来分类,可分为机械旋转式海流计、漂浮法测流装置、电磁海流计、声学海流计、激光海流计和电阻式海流计等几大类,它们各有各的使用范围和优缺点。机械旋转式海流计由于具有机械结构和测量电路较简单、工作可靠、成本低等优点而得到广泛的应用,就目前使用的情况看,它仍然是定点测流(包括船用、浮标、潜标等运载器)的主要仪器。机械旋转式海流计的流速传感器都采用转子。它的工作原理很简单:转子受水流冲击 There are many types of the current meter, classified according to the principle of the sensor, which can be divided into several categories such as a mechanical rotary current meter, a floating current measuring device, an electromagnetic current meter, an acoustic current meter, a laser current meter and a resistive current meter, They each have their own scope and advantages and disadvantages. Due to the advantages of simple mechanical structure and measurement circuit, reliable operation and low cost, the mechanical rotary current meter is widely used. For the current situation, it is still a fixed point current measurement (including marine, buoy, submarine, etc.) Carrier) the main instrument. Rotary flow meter mechanical flow sensors are used in the rotor. Its working principle is very simple: the rotor by the impact of water