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ROTARY PROPULSION TYPE FLAW DETECTOR AND MOVING DIRECTION SELECTING METHOD AT BRANCH PART OF FLAW SENSOR OF THE FLAW DETECTOR
ROTARY PROPULSION TYPE FLAW DETECTOR AND MOVING DIRECTION SELECTING METHOD AT BRANCH PART OF FLAW SENSOR OF THE FLAW DETECTOR
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机译：旋转推进式跳变检测器及跳变检测器跳变传感器分支部分的移动方向选择方法
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摘要
PURPOSE: To make a rotary propulsion type flaw detector possible to select the moving direction of a flaw sensor at a branch part. ;CONSTITUTION: The rotary propulsion type flaw detector comprises a flaw sensor 3, a leading element 5 connected to the front side of the sensor 3 via a coiled spring 4, a long coiled wire 2 so formed as to connect at the end to the sensor 3, a rotary propulsion unit 1 for rotating the wire 2 to propel spirally by a protrusion engaged with a recess between the wire, and a flaw detector body 10 installed at the unit 1 side and connected to the sensor 3 via a wire 11 passing inside the wire 2. The protrusion is so formed as to be detachably connected by the advancing and retreating operation to the wire 2, an elongated part by energization of an electric an electric heater is formed at the spring 4, and a proximity sensor 40 for detecting the approach of the tees of the branch unit of a piping system to the bottom is provided at the leading element 5.;COPYRIGHT: (C)1996,JPO
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