Development of a Universal Vacuum Acquisition System

This paper introduces a four channels vacuum acquisition system based on LPC1788 main control, which can be widely used in the vacuum gauge of INFICON and other companies. The system uses the vacuum gauge as the sensor, conducts signal processing with the help of OPA4277, and use AD7689 to perform analog-to-digital transformation, while through SPI to communicate with the chip. The system supports two communication modes, including RS232 and Bluetooth, which enables flexible and reliable data transmission. Through detailed system design and experimental verification, the paper fully proves the feasibility and effectiveness of the system in the field of vacuum acquisition.