Accurate calibration system and method suitable for temperature and humidity sensor of transformer substation

The invention discloses an accurate calibration system and method suitable for a temperature and humidity sensor of a transformer substation. The system comprises an MCU main control module, a switchmodule, a temperature and humidity acquisition module, a power supply module and a setting module, the temperature and humidity acquisition module acquires the temperature and humidity in the device in real time; the MCU main control module transmits acquired temperature and humidity values to the display screen for displaying; the switch module controls starting and stopping of the heating element, the humidifier and the air blower through an electronic switch; the setting module is used for operating and setting temperature and humidity parameter values; and the power supply module providesvoltage for each module circuit through AC/DC conversion. According to the invention, by changing the temperature and humidity values, the accuracy response time of the humiture of the humiture sensorunder the linear humiture