Description
Calculate a supplied two-point level-calibration fraction.
Cryogenic calculations require explicit absolute-pressure and temperature bases, density conditions, inventory boundaries and calibration spans. Level signals need not equal volume, nominal input energy differs from cooling delivered, and apparent loss is an accounting residual. Supplied terms do not establish actual equipment condition or safe low-temperature operation.
Calculate a supplied two-point level-calibration fraction.
When to use this tool
Use Liquid Level Calibration Two Point Fraction when you already have signal, emptySignal, fullSignal and need to calculate a supplied two-point level-calibration fraction.
How to use the tool and how it works
- Enter signal, emptySignal, fullSignal. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read levelFraction. Use the output convention below.
Require fullSignal!=emptySignal; return (signal-empty)/(full-empty).1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| signal | Signal | Required. Finite number. |
| emptySignal | Empty Signal | Required. Finite number. |
| fullSignal | Full Signal | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| levelFraction | (signal-empty)/(full-empty); reversed calibration and extrapolation accepted. Extreme endpoint subtraction can overflow to a misleading zero; rescale first. | Required. Finite number. |
{
"input": {
"signal": 4,
"emptySignal": 2,
"fullSignal": 10
},
"output": {
"levelFraction": 0.25
}
}Limitations and assumptions
- Descending calibration signals and fractions outside [0,1] are accepted. No tank geometry, level, liquid volume, calibration validity or safe fill limit is established. Extreme endpoint subtraction can overflow and produce a misleading zero; rescale consistent units first.
- 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
Use verified instrument and inventory records with the complete thermophysical and equipment model. Include actual state, geometry, heat transfer, venting and operating limits when local calibration fractions, mean mass flows or nominal volumes cannot answer the engineering question.
References
Similar or alternative tools
- Cryogenic Reservoir Level Percent
Calculate a supplied level-span fill percentage and range flag.
- Sensor Cold Warm Reference Residual
Compare supplied warm-minus-cold readings with a reference difference.