ENGINEERING EVIDENCE

A result needs
its conditions.

The figures below come from the supplied LTspice circuit-model test logs. They do not establish physical sensor distance, accuracy or fab performance.

Source: supplied LTspice log summaries. Test files: EFS1M_FAST_EDGE.cir / EFS1M_NOISE_SWEEP.cir. Public source files and a circuit revision identifier are not yet attached.

Output noise by input capacitance

LTspice · 27 °C

Integrated output noise · 0.1 Hz–1 kHz · µV RMS

20 pF
19.38
100 pF
20.12
500 pF
32.03
010203040 µV

All bars use the same 0–40 µV scale. Integrated output noise increases at higher input capacitance. ADC, power, wiring and physical sensor effects must still be assessed.

External capacitanceTransient plateau changeIntegrated noise
20 pF−1.043010 mV19.38 µV RMS
100 pF−1.043011 mV20.12 µV RMS
500 pF−1.043013 mV32.03 µV RMS

Transient: 9–10 ms average relative to baseline. Noise: 0.1 Hz–1 kHz integration in a separate noise analysis. These results alone do not establish system SNR.

Preparing for field reporting.

No field-pilot data is available yet. Instead of simulated customer results, these are the reporting fields to agree on for a pilot.

RecordPurpose
Device ID · time · conditionsTrace data origin and test conditions
Position or zone identifierCompare recurring zones — location integration needs validation
Raw readings · calibrationTrace processing and reference comparisons
Missing data · healthIdentify records unsuitable for analysis

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and source data together.

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