Studies on sensor-signal transmission techniques signal transmission techniques by ultrasonic was for the ACE-MOLE system

Katsuhiko Honjoh, Hiroki Kuwano

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This paper describes the techniques used to transmit ultrasonic sensor signals form the ACE-MOLE system through water supplied into the pipes of an underground pipe-jacking machine. Underground conduits for telecommunication systems are currently being changed from an open cutting and covering method to microtunneling construction using the pipe-jacking machine. Wireless techniques for transmitting sensor signals, i.e., information about the location and orientation of the driving machine are needed as the ACE-MOLE drives along the planned conduit line. We have investigated various signal transmission techniques using ultrasonic waves propagating in water flowing in the pipe and developed a prototype underwater ultrasonic transmitter and receiver.

Original languageEnglish
Pages (from-to)951-958
Number of pages8
JournalNTT R and D
Volume42
Issue number7
Publication statusPublished - 1993 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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