Beat Error Orientation Difference Screen

Compare horizontal and vertical beat-error observations against an explicit difference limit without assigning a single-cause mechanical diagnosis.

Description

Orientation-dependent beat-error change compares horizontal and vertical measurements.

Orientation-dependent beat-error change compares horizontal and vertical measurements. Its magnitude alone cannot identify the mechanical cause.^[1]

Compare horizontal and vertical beat-error observations against an explicit difference limit without assigning a single-cause mechanical diagnosis.

When to use Beat Error Orientation Difference Screen

Use this tool to compare horizontal and vertical beat-error observations against an explicit difference limit without assigning a single-cause mechanical diagnosis.

Choose a supported reference focus or prepare the watch measurements, evidence and explicit limits requested. Confirm units and date conventions before running.

How to use Beat Error Orientation Difference Screen and understand its results

Choose a supported reference focus or prepare the watch measurements, evidence and explicit limits requested. Confirm units and date conventions before running.
Enter horizontalBeatErrorMilliseconds, maximumAllowedOrientationDifferenceMilliseconds, verticalBeatErrorMilliseconds using the field table and calculation rules, then run the tool.
Read absoluteDifferenceMilliseconds, diagnosisCaution, largerBeatErrorMilliseconds, withinCallerDifferenceLimit. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
horizontalBeatErrorMilliseconds	Horizontal beat-error observation (ms)	number; minimum: 0	Required
maximumAllowedOrientationDifferenceMilliseconds	Maximum allowed orientation difference (ms)	number; minimum: 0	Required
verticalBeatErrorMilliseconds	Vertical beat-error observation (ms)	number; minimum: 0	Required

Enter nonnegative errors and maximum ms. Return difference, larger error, inclusive flag and diagnosis caution.

difference=|horizontal−vertical|; pass=difference≤maximum

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
absoluteDifferenceMilliseconds	Absolute orientation difference (ms)	number; minimum: 0
diagnosisCaution	Diagnosis caution	string
largerBeatErrorMilliseconds	Larger beat-error observation (ms)	number; minimum: 0
withinCallerDifferenceLimit	Within caller difference limit	boolean

json

{
  "input": {
    "horizontalBeatErrorMilliseconds": 0.2,
    "maximumAllowedOrientationDifferenceMilliseconds": 0.3,
    "verticalBeatErrorMilliseconds": 0.5
  },
  "output": {
    "absoluteDifferenceMilliseconds": 0.3,
    "diagnosisCaution": "A horizontal-versus-vertical beat-error difference can be a symptom, but it does not by itself diagnose poise, regulator alignment, pivots, or escapement geometry.",
    "largerBeatErrorMilliseconds": 0.5,
    "withinCallerDifferenceLimit": true
  }
}

Limitations and assumptions

No poise, pivots, regulator alignment or escapement geometry is examined.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.

Alternative or Complementary methods

Use Beat Error Symmetry Threshold Screen: Screen two beat-error observations against explicit caller-supplied magnitude and relative-difference limits; this is not a certification decision. For a complementary task, use Amplitude Explicit Threshold Screen: Screen measured balance amplitude against explicit caller-supplied minimum and maximum values without applying a universal healthy-degree target.

References

Beat Error Orientation Difference Screen — tool.io

Similar or alternative tools

Beat Error Symmetry Threshold Screen
Screen two beat-error observations against explicit caller-supplied magnitude and relative-difference limits; this is not a certification decision.
Amplitude Explicit Threshold Screen
Screen measured balance amplitude against explicit caller-supplied minimum and maximum values without applying a universal healthy-degree target.