Characteristics of ultrasonic ranging sensors in an underground environment

Author:	Strickland, W. H.
Additional Authors:	King, Robert H.
Year:	1993
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:9452
Series:	Report of investigations / Bureau of Mines ;
Report Number:	9452
Subjects:	Mining machinery--Automatic control
	Sonar
Links:	https://hdl.handle.net/2027/mdp.39015077558586
	no.9452 1993