The main intention of the second task is to accomplish every prototype of turbidity sensor and a direct-reading turbidity sensor. The paper is written based on the second task.

• 青年基金课题的主要目标是完成浊度传感器原理样机,第二个课题的主要目标是完成自容式浊度传感器和直读式浊度传感器工程样机各一台,本论文主要以第二个课题为基础完成的。