Digital Voltmeter (DVM) is an instrument that uses digital measurement technology to convert continuous analog quantity (DC input voltage) into discontinuous, discrete digital form and display it. At present, digital voltmeters composed of various single-chip A/D converters have been widely used in electronic and electrical measurement, industrial automation instruments, automatic test systems and other fields, showing strong vitality. At the same time, various general and special digital instruments and meters expanded from DVM have also raised the measurement technology of electrical and non-electrical quantities to a new level. This course design focuses on the working principle of the single-chip microcomputer chip AT89S51 and A/D converter and the DC digital voltmeter composed of them. The basic requirements are to use ADC0809, which has 8 analog inputs, to convert the analog input into digital quantity for display, and to design a circuit with the single-chip microcomputer chip AT89S51 to achieve 0-10V voltage measurement. The DC digital voltmeter has the following characteristics: clear and intuitive display, accurate readings; high accuracy and resolution; wide measurement range, strong expansion capability; high integration, low power consumption; high input impedance and strong anti-interference ability.
You Might Like
Recommended ContentMore
Open source project More
Popular Components
Searched by Users
Just Take a LookMore
Trending Downloads
Trending ArticlesMore