Foundation Settlement Monitor
Foundation Settlement Tracking via Survey
The Foundation Settlement Monitor is an optical surveying apparatus comprising a 5 kg robotic theodolite and fixed retroreflector reference targets mounted on structural foundations. Operating within subsystem L2-SSM-FOUND for the Lunar Ark system, it tracks foundation movement using periodic optical levelling surveys performed by an L1-ROB robotic unit at six-month intervals. The 10 W system yields a 0.5 mm settlement detection resolution, providing long-mission settlement trending and compensation data across a 20-year operational lifetime rated for a 100,000-hour mean time between failures.
Foundation settlement tracking via periodic robotic optical survey + GPS-like fixed references.
Purpose
Foundation settlement tracking via periodic robotic optical survey + GPS-like fixed references.
Context
Child of L2-SSM-FOUND within the Lunar Ark system
Principles
- ▸Optical levelling survey by L1-ROB
- ▸Fixed retroreflector references on foundations
- ▸Sub-mm settlement detection
- ▸Long-mission settlement trending
- ▸L1-DVT settlement archive
Typical implementations
- ▸Industrial geotechnical survey
- ▸Mining subsidence monitoring
- ▸Aerospace foundation surveys
Lunar considerations
- ▸Long-mission settlement compensation
- ▸Robotic survey via L1-ROB
- ▸L1-DVT history
Specifications
Functional
| primary function | Foundation settlement tracking via periodic robotic optical survey + GPS-like fixed references. |
| survey interval months | 6 |
| resolution mm | 0.5 |
Physical
| mass kg | 5 |
| materials | Robotic level (theodolite), Retroreflectors |
| vacuum compatibility | True |
Operational
| power consumption w | 10 |
| thermal range c | -40, 70 |
| lifetime years | 20 |
| mtbf hours | 100000 |
Interfaces
Provides
- Settlement data
- Overburden settlement input
Requires
- Survey robot
Cite this entry
Lunar Ark Codex. "Foundation Settlement Monitor" (L3-SSM-FOUND-SETTLE). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-SSM-FOUND-SETTLE
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.