Modulated technique

{
  "id": "MLC-T-CHM-007457",
  "term": "Modulated technique",
  "field": "Chemistry",
  "definition": "An experimental method in which a perturbation applied to a sample is varied in a periodic manner, typically sinusoidally, in addition to any underlying linear change. The system's response is then analyzed in terms of its amplitude and phase lag relative to the input modulation. An example is modulated temperature differential scanning calorimetry, where a sinusoidal temperature oscillation is superimposed on a linear heating ramp.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "PAC, 2014, 86, 545. 'ICTAC nomenclature of thermal analysis (IUPAC Recommendations 2014)' on page 548 (https://doi.org/10.1515/pac-2012-0609)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/modulated-technique/"
}