Abstract: The invention pertains to a device and system which uses printed circuit board metrology to accurately measure relative motion between surfaces in one or more dimensions. The invention comprises a system on a chip (SOC) to periodically measure, log, and transmit relative motion data in an automated fashion either wired or wirelessly, allowing long term measurement of moving surfaces such as foundation movement, bridge movement, concrete movement, structural system movement, excavation movement, slope monitoring or tree growth monitoring.
Type:
Grant
Filed:
August 7, 2015
Date of Patent:
October 15, 2019
Assignee:
Structural Health Data Systems
Inventors:
Ottis Charles Foster, Scott Miles Langerman, John Edward Fitch