The design of the tablet hardness tester

In this paper, an instrument for the pharmaceutical industry to measure the hardness of tablets is designed. The designed instrument adopts STM32ZET6 microcontroller as the control core, step motor to provide drive force, pressure sensor to detect the real-time pressure of tablet fragmentation and the 2.8 inch LCD to display hardness of the tablets. The system has 5 function keys for human-computer interaction, while the LCD screen has a rich display interface to guide the users. Practical test results show that the tablet hardness instrument can meet the measurement requirements, compared with traditional hardness tester more automated, higher accuracy, higher security, and better human-machine interaction and a rich information display interface.