Patent ID: 8345950
Filing Date: 2013-01-01
Classification: G01D

Abstract:
1. A system for testing a multimeter, the system comprising a calibrator connected to the multimeter, a computer connected to the calibrator, a mechanical arm and a camera connected to the computer, wherein: the mechanical arm is operable to set a gear of the multimeter; the calibrator is operable to send an analog signal to the multimeter according to the set gear; the multimeter is operable to transform the analog signal into a digital signal, and to display values according to the digital signal; the camera is operable to capture an image of each of the displayed values; and the computer is operable to obtain the values in the images captured every predetermined time interval, detect if a difference between each two obtained values is in an allowable error range of the multimeter, and generate a test report according to the detection result.