DEVICE FOR REGISTRATION OF LINEAR DEFORMATION Russian patent published in 1998 - IPC

FIELD: measurement technology; may be used in measurement of vertical displacements of structures. SUBSTANCE: to speed-up adjustment of pickup and to increase its reliability installed on measured object is flexible link between movable and fixed supports, pickup and sensing element. Pickup is made in the form of leaf spring installed in hollow body and cantilevered. Installed onto leaf spring bottom, square to it, is forcing-out plate. Sensing element is made in the form of two optical fibers directed towards each other, fiber of optical cable. One of fibers is engageable with forcing-out plate. Made in side opposite walls of hollow body are through semicylindrical grooves whose lower edge is above the bottom of hollow body. Installed in grooves are shafts, each having partial segment cutout overlapped with segment cover having screws. Segment cutout has recess made square to shaft axis for accommodation of optical fiber. To fix shafts in hollow body, hollow body side walls have clamps with screws and with semicylindrical recesses for shafts. Cable is secured in hollow body with pressing covers, one of which is higher than the other to ensure travel of leaf spring. Flexible link is secured directly to leaf spring. EFFECT: higher efficiency. 8 dwg