发明名称 |
Device for detecting inclination of boring head of boring tool |
摘要 |
A boring head of a boring tool for boring the ground includes a device for detecting inclination of the boring head therein. The device includes a roll angle sensor and a pitch angle sensor. The roll angle sensor detects an angular position of the boring head in a roll direction and outputs a roll angle detecting signal. The pitch angle sensor detects an angular position of the boring head in a pitch direction outputs a pitch angle detecting signal. A signal modulating circuit converts the roll angle detecting signal and the pitch angle detecting signal into a serial signal and modulates the serial signal. An output circuit receives the modulated serial signal and outputs a magnetic field which is receivable by a receiver located on the ground and which permits determination of the roll angle and the pitch angle of the boring head.
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申请公布号 |
US5363926(A) |
申请公布日期 |
1994.11.15 |
申请号 |
US19940176423 |
申请日期 |
1994.01.03 |
申请人 |
TAKACHIHO SANGYO KABUSHIKI KAISHA |
发明人 |
MIZUNO, MORIO |
分类号 |
E21D9/06;E21B47/022;E21D9/093;G01C15/00;(IPC1-7):E21B47/00 |
主分类号 |
E21D9/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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