Device for detecting inclination of boring head of boring tool
First Claim
1. A device mounted on a boring head of a boring tool for boring the ground and adapted for detecting inclination of the boring head, comprising:
- a roll angle sensor for detecting an angular position of the boring head in a roll direction and for outputting a roll angle detecting signal;
a pitch angle sensor for detecting an angular position of the boring head in a pitch direction and for outputting a pitch angle detecting signal;
signal modulating means for converting said roll angle detecting signal and said pitch angle detecting signal into a serial signal and for modulating said serial signal; and
output means for receiving said modulated serial signal and for outputting 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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Accused Products
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.
50 Citations
4 Claims
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1. A device mounted on a boring head of a boring tool for boring the ground and adapted for detecting inclination of the boring head, comprising:
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a roll angle sensor for detecting an angular position of the boring head in a roll direction and for outputting a roll angle detecting signal; a pitch angle sensor for detecting an angular position of the boring head in a pitch direction and for outputting a pitch angle detecting signal; signal modulating means for converting said roll angle detecting signal and said pitch angle detecting signal into a serial signal and for modulating said serial signal; and output means for receiving said modulated serial signal and for outputting 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. - View Dependent Claims (2, 3, 4)
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Specification