Well boring tool |
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| 申请号 | JP30883789 | 申请日 | 1989-11-28 | 公开(公告)号 | JPH02197694A | 公开(公告)日 | 1990-08-06 |
| 申请人 | Baker Hughes Inc; | 发明人 | MIGU EI HAWAADO; | ||||
| 摘要 | PURPOSE: To transmit the data by crossing a threaded junction part without requiring the electrical connection by providing a sensor for generating the data signal and a Hall-effect connecting device, and transmitting the data signal while utilizing the electromagnetic phenomenon. CONSTITUTION: A Hall-effect connecting device 327 formed of a Hall-effect receiver 331 carried by a tubular member 319 and a Hall-effect transmitter device 329 carried by a pin-like part 315 is provided near a connection space 325. A signal processing circuit 375 receives the signal from a temperature sensor 363 and processes it, and this processed signal is transmitted from a pin-like part 315 to a box-like part 321 through the connection space 325 while utilizing a magnetic field generated by a radial electromagnet 379 without requiring the physical and electrical contact. Structure between the tubular members 319 is similarly formed, and the data is transmitted to the ground. COPYRIGHT: (C)1990,JPO |
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