Description
Convert a positive physiological sampling interval to sample rate.
Physiological signals have explicit sampling intervals, polarity, time origins and cycle conventions. One cycle period differs from a robust averaged rate, and wrapped external-clock phase differs from measured biological phase. Supplied markers and gas-reference labels organize data without detecting events or establishing normal physiology.
Convert a positive physiological sampling interval to sample rate.
When to use this tool
Use Physiological Sampling Interval Rate when you already have intervalMilliseconds and need to convert a positive physiological sampling interval to sample rate.
How to use the tool and how it works
- Enter intervalMilliseconds. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read sampleRateHz. Use the output convention below.
Require intervalMilliseconds>0; return 1000/interval in Hz.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| intervalMilliseconds | Positive fixed sampling interval in ms, giving rate=1000/interval in Hz. | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| sampleRateHz | Sample Rate Hz | Required. Finite number. |
{
"input": {
"intervalMilliseconds": 2
},
"output": {
"sampleRateHz": 500
}
}Limitations and assumptions
- Assumes constant sampling; no signal content, acquisition accuracy or adequate sample rate is determined.
- 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
Inspect the original signal, event markers and acquisition clock when deriving physiological quantities. Use an appropriate multi-cycle or time-varying analysis when a single supplied interval, fixed sampling rate or wrapped external-time phase is insufficient.
References
Similar or alternative tools
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