Quick Answer
Calculate Surveillance Sensor Proof-Test Coverage Evaluator
Calculator
Result Interpretation
Surveillance Sensor Proof-Test Coverage Evaluator Calculator computes Detection Coverage Loss in 1 using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Probability of Failure per Hour (Dangerous Undetected) = 1.0E-6
- Failure Rate (Dangerous Undetected) = 1.0E-6
- Proof Test Interval = 8760
Expected Result:
- Detection Coverage Loss = 0.0087217429919645
Engineering Interpretation:
Under the given input conditions, the calculated result is: Detection Coverage Loss = 0.0087217429919645.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
detection coverage loss = 1 - exp(-Dangerous Undetected * proof test interval)Formula family: formula_reliability_surveillance_sensor_proof_test_coverage_evaluator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| pfh_du | Probability of Failure per Hour (Dangerous Undetected) | INPUT | Probability of Failure per Hour (Dangerous Undetected) |
| test_interval | Proof Test Interval | INPUT | Proof Test Interval |
| lambda_du | Failure Rate (Dangerous Undetected) | INPUT | Failure Rate (Dangerous Undetected) |
| detection_coverage_loss | Detection Coverage Loss | OUTPUT | Detection Coverage Loss |
Calculation Steps
- Enter the probability of failure per hour (dangerous undetected) in 1/h.
- Enter the proof test interval in h.
- Enter the failure rate (dangerous undetected) in 1/h.
- Step 1: Compute detection coverage loss.
- Read the detection coverage loss (1) from the results.
Engineering Summary
Calculate Surveillance Sensor Proof-Test Coverage Evaluator
Frequently Asked Questions
What does this calculator calculate?
The Surveillance Sensor Proof-Test Coverage Evaluator Calculator estimates Detection Coverage Loss based on the input parameters you provide
Why is probability of failure per hour (dangerous undetected) important in this calculation?
probability of failure per hour (dangerous undetected) directly affects detection coverage loss. When you enter probability of failure per hour (dangerous undetected) in 1/h, the calculator uses it in the engineering formula to compute the output
How should I interpret the result detection coverage loss?
The calculator outputs detection coverage loss. 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: Probability of Failure per Hour (Dangerous Undetected) (1/h), Proof Test Interval (h), Failure Rate (Dangerous Undetected) (1/h). 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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