Motor Torque/Power/Speed Converter implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

t4-090

Effect

Computation or source lookup only

Input and validation requirements

The reverse calculation of torque is undefined when power is nonzero and speed is exactly zero; the instrument should reject that input rather than produce a numeric result. A separate convention hazard also produces opposite power signs for signed versus magnitude-only speed.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "torque_Nm": 20,
    "speed_rpm": 1500
  },
  "expected_outputs": {
    "power_W": 3141.592654,
    "power_kW": 3.141592654,
    "power_mechanical_hp": 4.211250206
  },
  "working": "ω=2πN/60=2π(1500)/60=50π rad/s. P=Tω=20(50π)=1000π W=3141.592654 W=3.141592654 kW. HP=P/746=3141.592654/746=4.211250206 hp."
}

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche4/tranche4-results.json