Sjoblom Kurt,Mazzotti Matteo,Haas Charles Nathan,Bartoli Ivan
申请号：
US201715447165
公开号：
US10145820(B2)
申请日:
2017.03.02
申请国别(地区):
美国
年份:
2018
代理人:
Schott, P.C.
摘要：
A nondestructive evaluation method for determining the material used in a below ground service line includes inserting a probe with a wave measurement device therein into an area corresponding to a location of a service line; inciting a service line wave through an exposed portion of the service using a vibratory shaker; measuring, by the wave measurement device, a substrate wave created by the service line wave passing thought the service line and into the substrate; identifying, by a data acquisition system, the service line wave velocity; comparing the service line wave velocity to a known set of wave velocities in service line according to a service line material; and identifying the service line material in the service line by comparing the wave velocity in the service line with the known set of wave velocities.
