Abstract:This design adopts the method of Eddy current sensor detection to detect the thickness of the bile coating in rice cooker. In order to meet the requirements of the on-line detection of internal bile of different specifications and reduce the time of the workpiece clamping and detecting work, the detection device is designed to be tested with cylinder driven lever, and the detection probe is designed to be measured as a floating probe. The computer based on the single chip programming software platform realizes the working principle of on-line detection of the thickness of the ball-free coating in the rice cooker, and designs the hardware and control software of the mechanical part accordingly. Finally, the feasibility of on-line detection is verified by the experiment simulation, and the detection cost is reduced and the time beat of the inner gallbladder is shortened.