Impact Detection System
Impact Detection and Assessment System
The Impact Detection and Assessment System is a structural monitoring network comprising acoustic emission sensors, fiber optic grids, accelerometers, and pressure differential monitors that detects and locates micrometeorite strikes in real time. Acoustic arrays triangulate impact coordinates and estimate strike energy to guide autonomous responses, including monitoring, sealing, or immediate repair, while pressure sensors calculate hull breach severity via pressure decay rates. Lunar operational conditions complicate detection, requiring the full-surface exterior network to operate continuously across both lunar day and night cycles over a 100-year lifetime while reliably distinguishing hypervelocity meteorite impacts from background moonquake vibrations.
Acoustic emission sensors, pressure differential monitors, and fiber optic impact detection grid
Purpose
Detect and locate micrometeorite impacts in real-time for damage assessment
Context
Component of L1-MMD within the Lunar Ark system
Principles
- ▸Acoustic emission sensors detect impact events and locate damage by triangulation
- ▸Pressure differential monitoring detects hull breaches through pressure decay rate
- ▸Accelerometer networks distinguish impacts from other vibration sources
- ▸Impact energy estimation from sensor data guides damage severity assessment
Typical implementations
- ▸ISS MMOD impact detection using pressure sensors and crew reports
- ▸NASA Impact Sensor System (ISS-DRAGONS) for International Space Station
- ▸Acoustic emission structural health monitoring (aerospace applications)
- ▸Distributed fiber optic impact sensing systems
Lunar considerations
- ▸Must distinguish meteorite impacts from moonquake vibrations
- ▸Autonomous assessment must trigger appropriate response (monitor, seal, or repair)
- ▸Sensor network must cover entire exterior surface of Ark
- ▸Detection must work during both lunar day and night operational modes
Specifications
Functional
| primary function | Detect and locate micrometeorite impacts in real-time for damage assessment |
Operational
| thermal range c | -173, 127 |
| lifetime years | 100 |
Interfaces
Provides
- Impact event alerts and damage severity assessment
- Impact data for structural health assessment
Requires
- Power for sensor network and processing (~30W)
Decomposes into
Cite this entry
Lunar Ark Codex. "Impact Detection System" (L2-MMD-DET). Retrieved 10 September 2026, from https://lunarark.com/entry/L2-MMD-DET
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.