IMPACT DETECTOR Russian patent published in 2005 - IPC

FIELD: measurement engineering.

SUBSTANCE: impact detector has case 3, lever 1 disposed inside case for rotation at central axis 2 and is fastened with the axis, inertial members 4 disposed symmetrically to central axis and on both sides from the lever. Points of contact of the members 4 with lever 1 are disposed inside one main plane, which crosses central axis 2. Permanent magnet which has poles made of magnetically soft material, is fixed inside case 3. Armature 8 made of magnetically soft material is disposed for movement from one steady position to the other at poles of permanent magnet. Control rod 9 of actuating mechanism is fastened to central axis 2. Any inertial member is made in form of at least three inertial weights, which are disposed at equal distances from each other for rotation at additional axis 6. Diameter of axis is ten times shorter than distance between point of contact of inertial weight 5 with lever 5 and central axis 2. Additional axes 6 are disposed at main plane. Center of mass of inertial weight is disposed at plane inclined to main axis at angle of 54-59°. Armature is fastened symmetrically at central axis.

EFFECT: reduced error caused by friction.

3 dwg