Description
Compare measured output with a symmetric deadzone model.
Control boundaries and stability terms depend on state history, sign conventions and the full system dynamics. A finite scalar factor, one pole or one frequency sample is not sufficient to establish safe closed-loop behavior.
Compare measured output with a symmetric deadzone model.
When to use this tool
Use Deadzone Output Residual when checking a supplied saturation, hysteresis or local stability condition.
How to use the tool and how it works
- Enter input, halfWidth, measuredOutput. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read expectedOutput, residual. Use the output convention below.
Compare measured output with a symmetric deadzone model. Require halfWidth >= 0; expectedOutput is zero inside and on the edges, otherwise input-sign(input)*halfWidth; residual = measured-expected.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| input | Input | Required. Finite number. |
| halfWidth | Half Width | Required. Finite number; minimum 0. |
| measuredOutput | Measured Output | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| expectedOutput | Expected Output | Required. Finite number. |
| residual | Signed difference in the direction defined above, using the same units as its compared quantities. | Required. Finite number. |
{
"input": {
"input": 5,
"halfWidth": 2,
"measuredOutput": 4
},
"output": {
"expectedOutput": 3,
"residual": 1
}
}Limitations and assumptions
- This is a continuous deadzone convention, not a physical actuator identification or hysteresis model.
- 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
Analyze the complete dynamic system and practical constraints before interpreting a local result as robust or safe operation.
References
Similar or alternative tools
- Control Saturation Duty Fraction Term
Return a saturated command and its range fraction.
- Actuator Rate Limit One Step Gap
Rate-limit one actuator-command step with asymmetric rise/fall bounds.