VIBROCONTACT TRANSDUCER FOR LINEAR MEASUREMENTS Russian patent published in 1994 - IPC

FIELD: measurement technology. SUBSTANCE: vibrocontact transducer for linear measurements has an electromagnetic exciter of armature vibrations with measuring tip and generator-type convertor of vibrations an amplitude of which is determined by dimensions of an object being tested. The transducer armature resiliently suspended on two disk springs is made in the form of a non-magnetic rod with two prismatic ferromagnetic straps located along the axis of the housing. A strap length exceeds a total length of the generator-type vibration converter coil and a thickness of the rods which form an open magnetic circuit of this converter and are adjacent to the end-face of an two-pole field magnet. In the end-faces of magnetic circuit rods rectangular or trapezoidal cut-outs can be formed. EFFECT: enhanced accuracy and reliability and widened measurement range. 2 cl, 5 dwg