Quick Answer
Calculate Flow Meter Total Measurement Uncertainty (RSS Combination)
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Find Engineering Solutions →Result Interpretation
Flow Meter Total Measurement Uncertainty (RSS Combination) calculator computes Total Combined Standard Uncertainty in % using the defined engineering formula and the input values provided. Total Combined Standard Uncertainty is expressed in %. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Calibration Uncertainty = 0.15
- Repeatability Uncertainty = 0.08
- Installation Effects Uncertainty = 0.22
- Temperature Compensation Uncertainty = 0.06
- Pressure Compensation Uncertainty = 0.04
Expected Result:
- Total Combined Standard Uncertainty = 0.2872281323269
Engineering Interpretation:
Under the given input conditions, the calculated result is: Total Combined Standard Uncertainty = 0.2872281323269 %.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.
Formula / Method
total combined standard uncertainty = sqrt(pow(calibration uncertainty, 2) + pow(repeatability uncertainty, 2) + pow(installation effects uncertainty, 2) + pow(temperature compensation uncertainty, 2) + pow(pressure compensation uncertainty, 2))Formula family: formula_instrumentation_flow_meter_uncertainty_budget_builder_total_measurement_uncertainty_calculator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| u_calibration | Calibration Uncertainty | INPUT | Calibration Uncertainty |
| u_repeatability | Repeatability Uncertainty | INPUT | Repeatability Uncertainty |
| u_installation | Installation Effects Uncertainty | INPUT | Installation Effects Uncertainty |
| u_temperature | Temperature Compensation Uncertainty | INPUT | Temperature Compensation Uncertainty |
| u_pressure | Pressure Compensation Uncertainty | INPUT | Pressure Compensation Uncertainty |
| u_total | Total Combined Standard Uncertainty | OUTPUT | Total Combined Standard Uncertainty |
Calculation Steps
- Enter the calibration uncertainty in %.
- Enter the repeatability uncertainty in %.
- Enter the installation effects uncertainty in %.
- Enter the temperature compensation uncertainty in %.
- Enter the pressure compensation uncertainty in %.
- Step 1: Compute total combined standard uncertainty.
- Read the total combined standard uncertainty (%) from the results.
Engineering Summary
Calculate Flow Meter Total Measurement Uncertainty (RSS Combination)
Frequently Asked Questions
What does this calculator calculate?
The Flow Meter Total Measurement Uncertainty (RSS Combination) calculator estimates Total Combined Standard Uncertainty based on the input parameters you provide
Why is calibration uncertainty important in this calculation?
calibration uncertainty is used directly in the calculation of total combined standard uncertainty. Its effect on the result depends on the complete formula and the values of the other inputs.. When you enter calibration uncertainty in %, the calculator uses it in the engineering formula to compute the output
How should I interpret the result total combined standard uncertainty?
The calculator outputs total combined standard uncertainty in %. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Calibration Uncertainty (%), Repeatability Uncertainty (%), Installation Effects Uncertainty (%), Temperature Compensation Uncertainty (%), Pressure Compensation Uncertainty (%). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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