Measuring tool

The utility model discloses a measuring tool, including the wet calibration mark that compares of transparent circular arc board and heat, heat is wet to be set up on transparent circular arc board than calibration mark, just the wet lines sensing that corresponds than calibration mark of heat the centre of a circle of transparent circular arc board. The embodiment of the utility model provides ameasuring tool is wet than the scriber, because the scale interval (the instant heating is wet than calibration mark ) of appendix can directly mark out relevant line and point on it on the wet picture of enthalpy of humid air as heat for users such as air conditioning design technological learning person, religion scholar and beginner can save operating time in wetting than drawing process heat up, effectively improve the efficiency and the quality of working and learning. 本实用新型公开了种量度工具，包括透明圆弧板和热湿比刻度标识，所述热湿比刻度标识设置于透明圆弧板上，且所述热湿比刻度标识对应的线条指向所述透明圆弧板的圆心。本实用新型实施例提供的量度工具作为热湿比画线器，基于其上附载的刻度值(即热湿比刻度标识)可以直接在湿空气的焓湿图上标注出相关的线和点，使得