甘肃第一冶炼厂在黄河边上打了几口水井,在山顶上修了一个水塔。为了随时掌握各水井和水塔内的水位,以便决定各泵的启动和停止,这就要求对水位进行远距离的测量。为此,我们和该厂的仪表室同志一起试制了几台电容液面计,用一根塑料导线作测量头即可测量水位,其测量量程可以在很大范围内变化。后来,我们继续试验,将测量头改用金属棒,表面涂上玻璃钢或其它绝绿材料,亦可测量固体料面。若将测量头改用 Gansu first smelter hit a few wells on the edge of the Yellow River, built a water tower on the top of the hill. In order to keep track of the water levels in each well and tower to determine the start and stop of each pump, this requires long-range measurements of the water level. To this end, we and the factory grate room together trial of several capacitive liquid level meter, with a plastic wire as a measuring head to measure the water level, the measurement range can vary widely. Later, we continue the experiment, the probe head to use metal rods, coated with glass or other green material, the surface can also measure the solid material. If the probe switch to use