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The microprocessor is the core of intelligent transmitters. It can not only calculate, store, and process measurement data, but also adjust the sensors through a feedback loop to ensure that the collected data is of the highest quality. Due to its various software and hardware capabilities, the microprocessor can perform tasks that are difficult for traditional transmitters to accomplish. Therefore, intelligent transmitters reduce the difficulty of manufacturing sensors and significantly improve their performance. Intelligent transmitters also have the following features: 1. They possess automatic compensation capabilities, allowing software to automatically compensate for the non-linearity, temperature drift, and time drift of the sensor. It can perform self-diagnosis; upon power-up, it conducts a self-check of the sensor to verify that all its components are functioning properly and to make a determination. Data processing is convenient and accurate; it can automatically handle data according to internal procedures, such as performing statistical analyses or removing abnormal values. 2. It has two-way communication capabilities. Microprocessors can not only receive and process sensor data but also send information back to the sensors, thereby adjusting and controlling the measurement process. It can store and retain information, capable of storing characteristic data of sensors, configuration information, and compensation parameters, among others. 3. It features a digital interface output function, allowing the output digital signals to be easily connected to computers or fieldbuses, etc.