A system and method for producing a fuel gas is provided. The orientation sensor includes a ring-shaped container having an opaque liquid and a gas bubble sealed therein, and a detection assembly. The device can be used in a wide variety of applications, such as solar energy collection for industrial or commercial purposes, diverse electromagnetic radiations antennae or radar, since its area of action is 360\xb0 related to the horizontal and 180\xb0 related to the vertical. such as prevention of sticking, adhesion and blocking, and improvement of abrasion resistance, and also can serve as a surface-treating agent for vulcanized rubber without peeling of coating films due to adhesion under high-temperature compression or friction-abrasion under high specific pressure.