Design & Experiment Of Water Quality Detection System On General Parameters

Recently, water quality monitoring has become significant important because of serious water pollutions induced by the development of economics, the accelerated progress of urbanization and industrialization. The portable water quality detectors have the feature of small size, portability and flexibility, which multi-parameter detection is the developing direction.The design, with a wide range of applications, used by portable routine water quality testing system is based on the key technology of multi-sensor. The signal acquisition, signal processing and transmission technology of the portable multi-parameter water quality detection system was researched and the hardware and software of the system was designed, which initial realized water quality testing for multi-parameters. The detailed parts are listed as follows,①The present research status of portable water quality testing system was analyzed and the over design of portable multi-parameter water quality detection system was proposed;②Hardware, which includes processor, input and output devices and other functional modules, ware selected based on the system of the small size, portable and low cost;③Embedded software development platform and mixed programming model based on software with a good expansibility, transplantation and maintenance are used for Programming;④The prototype of the portable multi-parameter water quality detection system was produced, with the size of 25cm×10cm×10cm and the power of 0.7W, which realized water quality testing of multi-parameters of data collection, processing, storage, transport and display;⑤The conductivity sensor and turbidity sensor ware calibrated so that data processing algorithm was gained;⑥System debug and experimental validation...