APPARATUS TO MEASURE BOREHOLE INCLINATION ANGLE Russian patent published in 1995 - IPC

FIELD: boreholes geophysical research. SUBSTANCE: apparatus has register 4, electrical cable 3 and body 5 with following located in it pieces: elastic plate 16 with plumb bob 17 - on its lower end and tensometers - on its upper end; conical pendulum with axial hole, in which elastic plate 16 is located; hollow bush 9 with links and two plates 15, 12 with fixed on one of them board 13 with contact points; upper and lower plugs 6 and 7. Cylindrical bulge 22 with slit 23 and handle 26 is mounted in lower plug 7. Plumb bob 17 is made as cone. Plates 15 and 12 are located between hollow bush 9 and conical pendulum 21. Upper end of elastic plate is fixed by straps to hollow bush 9 links. Lower part of plumb bob is located in cylindrical bulge slit. Hollow bush 9 is connected with upper plug 6, that is rigidly fixed to body 5. Electrical cable 3 is placed in upper plug 6 and connected with contact points of board 13. Tensometers are connected to board 13. EFFECT: apparatus is used for geophysical research of boreholes. 5 dwg