Portable metal weld corrosion rapid tester

The invention relates to a portable metal weld corrosion rapid tester, and belongs to the field of corrosion electrochemical detection. The tester comprises a handheld welding seam corrosion rapid testing host and a corrosion monitoring flexible array electrode probe, wherein the test host is a full-digital measuring instrument controlled by a microcomputer and comprises an STM32F427 microcontroller, a 3.5-inch color touch display screen, an RM04 network module, a 120-path 8-selection analog switch array circuit and a power supply control and built-in battery charging management module, and the 120-path 8-selection analog switch array circuit is connected to a corrosion monitoring flexible array electrode probe; the probe is a 12 * 12 array Ag/AgCl microelectrode supported on the surface of flexible foam, the Ag/AgCl microelectrode can be conveniently replaced, and a test solution is injected into a water absorption film layer covering the surface of the array electrode before measurement. The tester is suita