A transmitter is an industrial automation equipment whose core working principle is to convert measured physical quantities such as temperature and pressure into transferable DC analog electrical signals, and display the measurement data through secondary instruments. This conversion process relies on sensing technologies (such as piezoresistive and capacitive) and signal processing technologies (such as amplification and linearization correction) to ensure accurate data transmission to the control system. Transmitters are widely used in fields such as petrochemicals, electricity, and water treatment to achieve real-time monitoring and control of parameters such as pressure and temperature