Description
Convert a supplied electrode impedance between ohms and kiloohms.
Neurological signal records distinguish event markers, sampling rate, polarity, reference amplitude and physical units. A pre-trigger duration may not equal a whole sample count, so the rounding policy changes the represented interval. Scalar subtraction and timestamp arithmetic do not detect an event, validate a recording or establish a diagnosis.
Convert a supplied electrode impedance between ohms and kiloohms.
When to use this tool
Use EEG Electrode Impedance Unit when you already have impedance, sourceUnit and need to convert a supplied electrode impedance between ohms and kiloohms.
How to use the tool and how it works
- Enter impedance, sourceUnit. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read ohms, kiloohms. Use the output convention below.
Require impedance>=0 and sourceUnit ohm or kohm; use 1000 Ω=1 kΩ.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| impedance | Impedance | Required. Finite number; minimum 0. |
| sourceUnit | Source Unit | Required. Text; one of "ohm", "kohm"; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| ohms | Ohms | Required. Finite number. |
| kiloohms | Kiloohms | Required. Finite number. |
{
"input": {
"impedance": 5,
"sourceUnit": "kohm"
},
"output": {
"ohms": 5000,
"kiloohms": 5
}
}Limitations and assumptions
- No electrode contact, calibration, signal quality or acceptable impedance is assessed.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review the original signal, acquisition settings and annotation method when interpreting a recording. Use actual timestamps for variable timing and the complete reference/montage definition for signal analysis; preserve the local unit and rounding conventions.
References
Similar or alternative tools
- Nerve Conduction Distance Unit
Convert a supplied nerve-conduction distance between millimetres and centimetres.
- EEG Epoch Pre Trigger Samples
Convert a supplied EEG pre-trigger duration to a rounded sample count.