SENSOR OF DEVIATION OF HOLE FROM HORIZONTAL Russian patent published in 1997 - IPC

FIELD: mining industry. SUBSTANCE: proposed sensor has two measurement chambers partially filled with conductive fluid and connected by means of tubular jumper. Internal surface of each chamber carries rheostat made in the form of ring divided into three equal arcs with electric leads-out from each one-third. Six auxiliary chambers also partially filled with conductive fluid and fitted with couple of electric contacts are positioned on continuation of axis of tubular jumper. Contacts in auxiliary chambers perform connection to measurement bridge of that part of rheostat which is not covered by conductive fluid and disconnection of parts of rheostat closed by it with any turn of transducer relative to longitudinal axis. Similar parts of rheostats in both measurement chambers are connected as arms to differential measurement bridge. Both measurement chambers and all auxiliary chambers are placed into intermediate case having shape of tripod signal. Ribs of signal are located opposite to leads from arcs of rheostat. EFFECT: increased functional reliability. 3 cl, 5 dwg