Communications – electrical: acoustic wave systems and devices – Testing – monitoring – or calibrating
Patent
1995-06-09
1996-07-02
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Testing, monitoring, or calibrating
367 88, H04B 1700
Patent
active
055329730
ABSTRACT:
A resolving power target for side-scanning sonars and other sound transming devices such as but not limited to ultrasonic devices. The target is a planar sheet having one smooth surface to which a resolution pattern is masked. An adhesive is applied to the masked pattern and articles such as gravel or other three-dimensional equivalents are introduced to produce the irregularity to the smooth surface within the confines of the resolution pattern. The resolution pattern for a particular application is selected experimentally, however, a Limansky pattern is used in the present invention for side-scanning sonar resolution measurements.
REFERENCES:
patent: 5463593 (1995-10-01), Zanelli et al.
Gilbert Harvey A.
Pihulic Daniel T.
The United States of America as represented by the Secretary of
Townsend William C.
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