-
公开(公告)号：US20200098237A1
公开(公告)日：2020-03-26
申请号：US16142378
申请日：2018-09-26
Applicant: OTIS ELEVATOR COMPANY
Inventor： Joseph Zacchio , Teems E. Lovett , Paul R. Braunwart
Abstract: A method of examining an electrical safety chain of an elevator system including: emitting an electric pulse from a time-domain reflectometer into an electrical safety chain of an elevator system; detecting a reflected electric pulse reflected within the electrical safety chain using the time-domain reflectometer; comparing the reflected electric pulse to a baseline reflected electric pulse; and determining a degradation level in response to the reflected electric pulse and the baseline reflected electric pulse.
Search Results
1
records
(took 0.013 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
