grabowski
cfbeae2809
Lamp SPD/TM-30/metrics for four EANs and solar charge controller efficiency sweeps, moved out of the web repo so measurement data lives in its own history.
36 lines
1.8 KiB
Markdown
36 lines
1.8 KiB
Markdown
# comparison-data
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Raw measurement data behind [buildfor.life/comparisons](https://buildfor.life/comparisons).
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This repo is consumed by [buildfor_life_web](https://git.b4l.co.th/B4L/buildfor_life_web)
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as a git submodule at `apps/web/comparison-data`. At build time the site copies it to
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`/data/comparisons/`, where every file is both chart input and a raw download. Directory
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names are the keys the site's device pages reference in their `csv:` front matter, so
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renaming a directory here requires updating the matching page in the web repo.
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## Layout
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```
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lamps/<EAN>/spd.csv SPD 380-1050 nm: wavelength_nm,value
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lamps/<EAN>/tm30.csv ANSI/IES TM-30-18 per-hue-bin data (16 bins): Rcs, Rhs, Rf_h, ...
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lamps/<EAN>/metrics.json Summary: TM-30 Rf/Rg, CRI Ra + R1-R15, CCT, flux, instrument metadata
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solar-charge-controllers/<device>.csv Efficiency sweep: set/measured Vin, Iin, Pin, Vout,
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Iout, Pout, eff_pct, heatsink and board temperature
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```
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Lamps are identified by their EAN barcode so results stay unambiguous across brands and
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packaging variants. EANs starting with 2 are retailer-internal barcodes that cannot be
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resolved publicly.
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## Provenance
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- Lamps: HPCS-6500 integrating sphere, 230 V / 50 Hz, five consecutive readings averaged
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after stabilization. Instrument driver and TM-30 tooling:
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[HPCS6500-py](https://git.b4l.co.th/B4L/HPCS6500-py). Procedure:
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[lamp test procedure](https://buildfor.life/docs/tooling/lamp-test-procedure/).
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- Solar charge controllers: automated MPPT testbench sweeps. Procedure:
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see the linked test procedure on the comparison page.
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Data is published as measured; files are never edited after the fact. Corrections happen
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by re-measuring and replacing the whole device directory in one commit.
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