A PRESSURE-DETECTION METHOD AND DETECTION DEVICE FOR ELETRIC PRESSURE COOKER

摘要

A pressure-detection method and detection device for electric pressure cooker is used for detecting continuously and accurately to control the pressure in the electric pressure cooker. The method comprises that a strainometer is provided on the periphery of a cooking pot of the electric pressure cooker, and a transmission arm is utilized to sense the expanding amount of the cooking pot and converts the expanding amount into a displacement, then makes the elastomer of the strainometer distorting; the distorting elastomer generates subsequently a controllable electric signal due to the electric characteristic of a sensitive foil, and the controllable electric signal is delivered to a central control unit, then control signals and display signals are outputted by the central control unit. The detection device comprises a strainometer, a transmission arm, a central control unit and the like. The strainometer is provided on the periphery of the cooking pot of the electric pressure cooker and is fixed by a proper way. The present invention can be used not only to detect and control the pressure of the electric pressure cooker and can be used for the household appliances also, such as electric iron, electric water heater and the like, the temperature and pressure of which need to be detected.