| 2. | Spindle flowmeter , a new type of differential pressure flowmeter , is used as the sensor of flow measurement . and aiming for a small and intelligent design , we use the mcu named sst89e564rd as the main controller , the leds and the keyboard as the user interface 本着小型化、智能化的原则,该积算仪采用sst公司的微控制器sst89e564rd作为控制核心,并设计了由数码管和矩阵式键盘组成的人机对话接口。 |