Design of a simple and multifunctional liquid parameter measuring instrument based on MSP430 single chip microcomputer

At present, most liquid parameter detectors on the market are expensive or have single functions, which limits the widespread use of liquid parameter instruments. In order to overcome the above problems, this paper proposes a MSP430F5529 single-chip microcomputer as the main body, combined with ultrasonic liquid level sensor, weighing sensor, PH sensor and other sensor elements, completed the design of the hardware circuit and software program, and finally measured it through experiments Data verification, experimental results show that the design can realize the function of measuring liquid level, liquid weight, liquid temperature, liquid PH value and distinguishing liquid high and low concentration. The liquid parameter detector of this design is affordable and can measure multiple liquid parameters at the same time. It has the advantages of simple and multi-function, can meet the measurement needs of most liquid parameters, and is in line with the main development direction of modern measuring instruments.