Document Lansmont M23 drop tower and Polytec QTec laser vibrometer

[Copilot]

Per Jeff's reply on the issue, this PR pulls together what we know about the two pieces of impact-characterization equipment we'll be using, commits stock images of them, and lands the completed literature survey.

Changes Made

• New equipment/ folder with an index README linking the two instrument subfolders and the source issue/comment.
• equipment/lansmont-m23/ — Lansmont Model 23 Shock Test System ("drop tower"):
  • Lansmont_M23_Shock.pdf — the brochure Jeff attached to the issue.
  • M23_Data_Sheet_official.pdf — current data sheet pulled directly from lansmont.com.
  • README.md — transcribed key specs (5,000 g max, 0.25 ms min half-sine pulse, 24–32 ft/s ΔV, 80 lb payload, TouchTest Shock II controller, Test Partner DAQ), vendor/training links, channel and search links for tutorials, and ASTM cushion-test context (D1596 / D4168 / D5276 / D6537).
  • images/ — vendor stock photo of the M23 (extracted from the official datasheet PDF), with SOURCES.md documenting provenance and editorial/fair-use licensing.
  • literature.md — M23-specific highlights from the Edison survey.
• equipment/polytec-qtec/ — Polytec QTec single-point laser Doppler vibrometer (~100 kHz):
  • Polytec_Datasheet_VibroFlex_QTec.pdf — official VibroFlex QTec datasheet.
  • README.md — specs for the 100 kHz configuration (sub-pm displacement resolution, ±30 m/s velocity range, 1550 nm IR measurement laser + 520 nm targeting laser, VibroFlex Connect front-end), vendor/tutorial pointers, and planned use alongside the M23.
  • images/ — six vendor stock images from polytec.com (VFX-I-160 sensor head, Connect VFX-F-110 front end, modular VibroFlex family overview, multipath-interferometry SNR diagram, long-range QTec head, datasheet hero composite), with SOURCES.md.
  • literature.md — QTec-specific highlights from the Edison survey.

Edison Literature Query (fetched)

Submitted and fetched a LITERATURE_HIGH Edison query covering peer-reviewed work that uses the Lansmont M23 and Polytec QTec on architected materials, lattices, foams, tensegrity, prosthetics / crutch tips, and 3D-printed energy absorbers (task 1a0f4a70-3297-44d1-860a-dfcdd551e561). The verbatim formatted answer (with full numbered references) and the full structured task object are committed under edison-trajectories/2026-05-08-equipment-m23-qtec-1a0f4a70.{md,json} per repo convention. Headline findings:

• 9 publications confirmed to explicitly name the Lansmont M23 (predominantly JEDEC board-level shock; Dornala 2019 most instrumentation-detailed at 5 MHz DAQ).
• 6 publications confirmed to explicitly name the Polytec VibroFlex QTec (Grétarsson & Lindell 2023 matches our 100 kHz + 1 MS/s NI 9223 configuration most closely; Martarelli et al. 2026 quantified ~8 dB SNR improvement from QTec multipath).
• No prior work was found combining Lansmont shock testing + LDV transient response on the same specimen — flagged as a methodological contribution we can claim.
• Five concrete instrument-specific recommendations for our multifidelity-BO campaign are distilled in §5 of the Edison answer.

Deliberate Omissions

• No fabricated DOIs — general-purpose web search returned several plausible-but-unverifiable citations, so verified literature comes exclusively from the Edison run.
• No specific YouTube tutorial URLs (only the official Lansmont and Polytec channels and scoped search queries) — Edison could not verify any URLs either, and neither could general web search.
• High-speed cameras mentioned in the issue thread aren't included yet — a third subfolder can be added once Jeff confirms the model.

[sgbaird-alt]

@copilot based on Jeff's reply, pull all related details/specs and any additional images (also tutorials, videos, etc.) and related literature that uses this system (send an edison query for that) for these two pieces of equipment.

[Copilot]

@copilot based on Jeff's reply, pull all related details/specs and any additional images (also tutorials, videos, etc.) and related literature that uses this system (send an edison que...

Done in 94fd831. Added an equipment/ folder with subfolders for the two instruments Jeff named:

• equipment/lansmont-m23/ — Jeff's attached Lansmont_M23_Shock.pdf plus the current official M23 Data Sheet.pdf from lansmont.com, and a README transcribing the key specs (5,000 g, 0.25 ms min half-sine, 24–32 ft/s ΔV, 80 lb payload, TouchTest Shock II controller, Test Partner DAQ) with vendor / training / channel links and ASTM cushion-test context.
• equipment/polytec-qtec/ — official VibroFlex QTec datasheet and a README with key specs for the 100 kHz configuration (sub-pm displacement resolution, ±30 m/s velocity range, 1550 nm IR + 520 nm targeting laser, VibroFlex Connect front-end) and vendor / tutorial links.

Submitted a LITERATURE_HIGH Edison query covering peer-reviewed use of both instruments on architected materials, lattices, foams, tensegrity, prosthetics/crutch tips, and 3D-printed energy absorbers (task 1a0f4a70-3297-44d1-860a-dfcdd551e561, non-blocking). Will fetch results next session and write literature.md in each subfolder.

Two deliberate omissions to flag: (1) general-purpose web search returned several plausible-but-unverifiable DOIs, so I did not put any of those into the READMEs — verified citations will come from the Edison run; (2) specific YouTube tutorial URLs aren't enumerated yet for the same verifiability reason, only the official Lansmont/Polytec channels and scoped search queries. Also: the high-speed cameras you mentioned aren't included yet — happy to add a third subfolder once we know the model(s).

[sgbaird-yolo]

@copilot fetch all Edison queries. Also, make sure you have some stock images of these repo devices that you commit to the repo in case we need to use them later

[Copilot]

@copilot fetch all Edison queries. Also, make sure you have some stock images of these repo devices that you commit to the repo in case we need to use them later

Done in 05b6344.

Edison fetch. The literature survey for these two instruments (task 1a0f4a70) finished and is now committed verbatim to edison-trajectories/2026-05-08-equipment-m23-qtec-1a0f4a70.{md,json} (both formats per repo convention). Headline findings — 9 publications explicitly name the Lansmont M23 (mostly JEDEC board-level drop-shock; Dornala 2019 is the most instrumentation-detailed reference); 6 publications explicitly name the Polytec VibroFlex QTec (Grétarsson & Lindell 2023 is the closest match — same 100 kHz bandwidth + 1 MS/s NI 9223 DAQ as our unit). Per-instrument digests are in equipment/lansmont-m23/literature.md and equipment/polytec-qtec/literature.md. Notable gap the survey called out: nobody has combined Lansmont shock + LDV transient response on the same specimen, so our multifidelity setup can claim that as a methodological contribution.

Stock images. Committed under equipment/<instrument>/images/ with a SOURCES.md documenting provenance and licensing in each folder:

• equipment/lansmont-m23/images/m23_lansmont_datasheet_photo.png — vendor product photo extracted from Lansmont's official Oct-2025 data sheet PDF (Lansmont's web origin is behind Cloudflare bot challenge, so the data-sheet PDF was the cleanest source).
• equipment/polytec-qtec/images/ — six vendor stock images pulled from polytec.com: VFX-I-160 sensor head, Connect VFX-F-110 front end, modular VibroFlex family overview (2024), QTec multipath-interferometry SNR diagram, long-range QTec head, and the official datasheet hero composite.

The other Edison task IDs in repo memory (e.g. crutch-tip lit, NASA tie-in, sim survey, naming) were submitted from other branches/PRs and belong on those branches; happy to fetch any specific one here on request.

Outstanding (not blocking): high-speed cameras Jeff mentioned still need a model from him before we can add a third subfolder.