▎ 摘　　要

NOVELTY - The measuring instrument has a support leg (31) which is arranged below a device structure (3). One side of the device structure is provided with an operation panel (34). An upper cover assembly (1) is arranged above the device structure. The upper end of the device structure is provided with an upper frame (33). A tray holder (32) is arranged at an upper middle position of the device structure. A tray (2) is arranged above the tray holder. A lamp holder is provided with a card slot corresponding to the surface of a power source main structure. The lamp holder is embedded in the interior of the card slot. The lamp holder and the power source main structure are fixedly connected by a buckle. A metal contact is arranged at an intermediate position between the lamp holder adjacent to one side of the power source main structure and a side of the power source main structure adjacent to the lamp holder. USE - Graphene aqueous conductive coating solid content measuring instrument. ADVANTAGE - The gasket is designed between the lamp holder and the power source main structure to prevent water vapor from eroding the metal components, thus prolonging the service life of the heating lamp, and facilitating the replacement of the heating lamp by the worker. The heat dissipation rib is designed on the side away from the heating lamp tube to facilitate heat dissipation of the power supply main structure and improve the heat dissipation efficiency of the power supply main structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram illustrating a structure of the graphene aqueous conductive coating solid content measuring instrument. Upper cover assembly (1) Tray (2) Device structure (3) Support leg (31) Tray holder (32) Upper frame (33) Operation panel (34)