{
  "id": 77870,
  "title": "Sampling Rate",
  "url": "/competitions/vsb-power-line-fault-detection/discussion/77870",
  "author_name": "",
  "post_date": "2019-01-17T07:47:34.704813200Z",
  "votes": 3,
  "comment_count": 1,
  "views": 0,
  "content": "<p>Is there a fixed sampling rate for all measuring devices or does it vary? I tried to go through @tvantuch's thesis but could not find any information, or missed it. I want to construct the time window of measurements in seconds to get correct frequencies in spectogram analysis. </p>\n\n<p>Good luck!</p>",
  "messages": [
    {
      "id": "457300",
      "postDate": "01/17/2019 07:47:34",
      "content": "<p>Is there a fixed sampling rate for all measuring devices or does it vary? I tried to go through @tvantuch's thesis but could not find any information, or missed it. I want to construct the time window of measurements in seconds to get correct frequencies in spectogram analysis. </p>\n\n<p>Good luck!</p>",
      "rawMarkdown": "Is there a fixed sampling rate for all measuring devices or does it vary? I tried to go through @tvantuch's thesis but could not find any information, or missed it. I want to construct the time window of measurements in seconds to get correct frequencies in spectogram analysis. \n\nGood luck!",
      "votes": null
    },
    {
      "id": "457488",
      "postDate": "01/17/2019 14:48:37",
      "content": "<p>From the data description:</p>\n\n<p>\"Each signal contains 800,000 measurements of a power line's voltage, taken over 20 milliseconds. As the underlying electric grid operates at 50 Hz, this means each signal covers a single complete grid cycle.\"</p>\n\n<p>Thus a sample rate of 40 Msps (Million samples per second) for the data provided in the competition.</p>\n\n<p>Interestingly though, if you're referencing the paper he authored and linked in the discussion forums, I think the data he initially was working with was only 20 Msps so you may see that referenced as well. </p>",
      "rawMarkdown": "From the data description:\n\n\"Each signal contains 800,000 measurements of a power line's voltage, taken over 20 milliseconds. As the underlying electric grid operates at 50 Hz, this means each signal covers a single complete grid cycle.\"\n\nThus a sample rate of 40 Msps (Million samples per second) for the data provided in the competition.\n\nInterestingly though, if you're referencing the paper he authored and linked in the discussion forums, I think the data he initially was working with was only 20 Msps so you may see that referenced as well.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 457488,
      "author_name": "jeffreyegan",
      "author_url": "",
      "post_date": "01/17/2019 14:48:37",
      "content": "<p>From the data description:</p>\n\n<p>\"Each signal contains 800,000 measurements of a power line's voltage, taken over 20 milliseconds. As the underlying electric grid operates at 50 Hz, this means each signal covers a single complete grid cycle.\"</p>\n\n<p>Thus a sample rate of 40 Msps (Million samples per second) for the data provided in the competition.</p>\n\n<p>Interestingly though, if you're referencing the paper he authored and linked in the discussion forums, I think the data he initially was working with was only 20 Msps so you may see that referenced as well. </p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "457300": "Is there a fixed sampling rate for all measuring devices or does it vary? I tried to go through @tvantuch's thesis but could not find any information, or missed it. I want to construct the time window of measurements in seconds to get correct frequencies in spectogram analysis. \n\nGood luck!",
    "457488": "From the data description:\n\n\"Each signal contains 800,000 measurements of a power line's voltage, taken over 20 milliseconds. As the underlying electric grid operates at 50 Hz, this means each signal covers a single complete grid cycle.\"\n\nThus a sample rate of 40 Msps (Million samples per second) for the data provided in the competition.\n\nInterestingly though, if you're referencing the paper he authored and linked in the discussion forums, I think the data he initially was working with was only 20 Msps so you may see that referenced as well."
  },
  "source": "meta"
}