particle_size_read — DRIVE grind op

• Data kinds: any → table

• Call: import fullseye as fs; fs.ledger.particle_size_read(path) -> 'dict' (to call the implementation directly, import grind; grind.particle_size_read(path) -> 'dict'; from the registry, opsdrive.get("particle_size_read"))

Usage

> This operator's description has not been translated yet. The original text follows as it is.

レーザー回折の粒度分布 CSV(ヘッダの `key,value 行 + SizeClasses` で始まる表)を読む。

返り: `edges [µm] (表の 1 列目 = 区間の端)、volume(2 列目 = 端 i と i+1 の間の体積 %)、header`

(文字列の dict)、`dx50_reported(ヘッダの Dx (50)、無ければ None)、total_percent`(体積の総和)、

`n_rows。読み込んだパスは返り値に残さない。表が無い・数値でない・最後の行が 0 でない → ValueError`。

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• poc_powder_grinding_ae — py -3.11 examples/poc_powder_grinding_ae.py

Ops the type connects to (they accept table as input)

course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same

Same category (grind)

particle_size_dx · particle_size_oversize · particle_size_synth · comminution_energy · comminution_law_fit · breakage_first_order_fit · replicate_compare · ae_read_csv

*Provenance: grind.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.