用传感器测量液位在市场上已有成品,但是都是应用在较深的水域,且传感器较大,但对于一般生活上应用的容器,例如:油瓶、水瓶和液体罐等这些不透明的容器,要想知道它其中液体的液位就有一定的困难了。实验将小型的差压传感器接于容器中,对容器内的水压进行测量,从而推算出相应的液位。实验通过定标找到传感器输出电压值与液位高度之间的关系值,将之后测得的电压值直接转换为高度值,即可通过数显装置直接得到液位高度。通过测试发现,差压传感器测量液位的效果良好,数据可靠。 Measuring liquid level with sensors is already available on the market, but both are used in deeper waters with large sensors. However, for general-purpose containers such as oil bottles, water bottles and liquid cans, these opaque containers , In order to know where it liquid level there is some difficulty. Experiments will be a small differential pressure sensor connected to the container, the pressure in the container to measure the water level, which deduced the corresponding level. Experiment through the calibration to find the sensor output voltage value and the relationship between the level of the liquid level, the measured voltage value is directly converted to a high value, you can get through the digital display device level height. Through the test found that the differential pressure sensor to measure the effect of good, reliable data.