{
  "$schema": "https://ps-wiki.github.io/schema/v1/term.schema.json",
  "id": "waveform-measurement-unit",
  "title": "Waveform Measurement Unit",
  "description": "A sensor device that records time-synchronized synchro-waveform measurements of voltage and current.",
  "language": "en",
  "tags": [
    "measurement",
    "ieee",
    "ieee-standard"
  ],
  "related": [],
  "aliases": [
    "Synchro-Waveform Measurement Unit (SMU)"
  ],
  "breaking": false,
  "dates": {
    "created": "2025-03-15",
    "last_modified": "2025-11-03"
  },
  "authors": [
    {
      "name": "Jinning Wang",
      "url": "https://jinningwang.github.io"
    }
  ],
  "content": {
    "sections": [
      {
        "order": 1,
        "id": "definition-in-an-ieee-standard",
        "title": "Definition in an IEEE Standard",
        "type": "definition",
        "source_keys": [
          "ieee2024std1547"
        ],
        "page": "p10",
        "body_md": "> The sensor device to record synchro-waveforms may be referred to as waveform measurement unit (WMU). WMUs record time-synchronized waveform measurements of voltage and current at different locations of a power system. In some literature, synchro-waveforms are also referred to as time-synchronized point-on-wave (POW) measurements or time-synchronized sampled values (TSSVs). WMUs are also in some literature referred to as POW sensors or synchro-waveform measurement units (SMUs).\n"
      }
    ]
  }
}