grind op• Data kinds: signal × signal → table
• Call: import fullseye as fs; fs.ledger.comminution_law_fit(t, d, law: 'str' = 'all') -> 'dict' (to call the implementation directly, import grind; grind.comminution_law_fit(t, d, law: 'str' = 'all') -> 'dict'; from the registry, opsdrive.get("comminution_law_fit"))
Fits a comminution law to the time course of particle size d(t) (assuming energy ∝ t; see the module header). The error is measured in log(diameter).
> The detailed description below is the original text — the summary and the headings are translated.
t: 正味の粉砕時間(エネルギーの代わり、≥ 0)、d: その時点の代表径 [µm] (D50 など)。独立試行は同じ t に複数並べてよい。
模型: Kick ln x = ln x₀ − k t、n ≠ 1 の則は x^{1−n} = x₀^{1−n} + (n−1) k t(k = 単位時間あたりの E/C)。law: "all"(kick / bond / rittinger / walker を全部)か 1 つの名前。返り: fits(則 → n・x0・k・ rms_log・aic・residual_log)、best_fixed(n を固定した 3 則のうち rms_log 最小)、n_points。x0 が inf になるのは「供給径の項が要らない」(n > 1 で x₀^{1−n} → 0)という当てはめの結果で、正直にそう返す。点が 3 未満・径が非正 → ValueError。
• 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.
• poc_powder_grinding_ae — py -3.11 examples/poc_powder_grinding_ae.py
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
grind)particle_size_read · particle_size_dx · particle_size_oversize · particle_size_synth · comminution_energy · 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.