DEVICE FOR MEASUREMENT OF RECTILINEARITY OF CYLINDRICAL HOLE AXIS Russian patent published in 1997 - IPC

FIELD: measurement technology. SUBSTANCE: device body is made of two parts in length. Each part is installed in measured hole exactly along its actual axis by means of self-setting radial support. One of body parts accommodates induction displacement measuring transducer, and second part carries mushroom-shaped transmitting member designed to displace moving part of the above-indicated transducer. On internal side, transmitting member cap has sharp edge contacting the flat face wall of first part of body and is pressed to it by spring. External surface of cap comes in contact with moving member of transducer. Device facilitates measuring of deviation from ideal (straight) axis of hole. Device may be provided with telescopic handle hinge-connected to body. EFFECT: higher accuracy of measurement. 3 cl, 2 dwg