MANOMETRIC SPRING Russian patent published in 2003 - IPC

FIELD: springy sensitive elements employed in instruments measuring pressure, robotics systems functioning under conditions of vibrations and loads. SUBSTANCE: proposed manometric spring is component, two working profiles, inner and outer, are formed in its cross-section. Each working profile has its own working cavity. Outer working profile meets condition a_o/b_o>1, where a_o- is semi-major axis of outer working profile; b_o is semi-minor axis of outer working profile. Inner working profile complies with condition a_i/b_i<1, where a_i is semi-minor axis of inner working profile; b_i is semi-major axis of inner working profile. Outer working profile is formed by connection of two or four strips of specified form and dimensions and thus working cavity A turns up. Inner working profile is formed by connection of two strips of specified form and dimensions and thus working cavity B arises. Certain pressure is formed in each working cavity with work of manometric spring. Working profiles work jointly, character of their deformation of spring as whole depends on value of pressure in each working cavity. EFFECT: increased characteristics of manometric springs such as sensitivity to pressure, rigidity to action of external force, strength, vibration resistance and expanded measurement limits. 7 cl, 3 dwg