Device for detecting inclination of boring head of boring tool

Details Device for detecting inclination of boring head of boring tool Device for detecting inclination of boring head of boring tool

1994-01-03

1994-11-15

Buiz, Michael Powell

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Tool position direction or inclination measuring or...

E21B 4700

Patent

active

053639260

ABSTRACT:
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.

REFERENCES:
patent: 4907658 (1990-03-01), Stangel et al.
patent: 5002137 (1991-03-01), Dickinson et al.
patent: 5165490 (1992-11-01), Nosaka
patent: 5203418 (1993-04-01), Gibson et al.

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