Meanings
- An empirical equation used to calculate the total power loss (core losses) per unit volume in magnetic materials when subjected to external sinusoidally varying magnetic flux: P_v=k·fᵃ·Bᵇ where P_v is the time average power loss per unit volume in milliwatts per cubic centimeter, f is frequency in kilohertz, and B is the peak magnetic flux density; k, a, and b, called the Steinmetz coefficients, are material parameters generally found empirically from the material's B-H hysteresis curve by curve fitting.
Synonyms: power equation
Synonyms & antonyms
proper nounAn empirical equation used to calculate the total power loss (core losses) per unit volume in magnetic materials when subjected to external sinusoidally varying magnetic flux: P_v=k·fᵃ·Bᵇ where P_v is the time average power loss per unit volume in milliwatts per cubic centimeter, f is frequency in kilohertz, and B is the peak magnetic flux density; k, a, and b, called the Steinmetz coefficients, are material parameters generally found empirically from the material's B-H hysteresis curve by curve fitting.
Origin
Named after Charles Proteus Steinmetz, who proposed a similar equation on which this was based.
Full word history & related roots →Cite this entry
Steinmetz's equation. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Steinmetz's%20equation
“Steinmetz's equation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Steinmetz's%20equation. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “Steinmetz's equation,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Steinmetz's%20equation.
Source: Steinmetz's equation on Wiktionary, CC BY-SA 4.0.