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  1. samf48

    How to calibrate multiple magnetometers for mass production

    Looks like there are some pre-packaged set ups out there: https://matesy.de/en/products/magnet-measurement-calibration/helmholtz-coil Since the goal is to do this indoors, could I simply perform the tumble test using the Helmholtz coil with my current method of calibration, with respect to the...
  2. samf48

    How to calibrate multiple magnetometers for mass production

    Pretty loose accuracy of +/- 15° for the end application of the compass...
  3. samf48

    How to calibrate multiple magnetometers for mass production

    Currently using a similar method to compensate for the hard-iron and soft-iron biases from my onboard electronics: https://github.com/kriswiner/MPU6050/wiki/Simple-and-Effective-Magnetometer-Calibration This method though, also looks at the field around the device as well as the magnetic field...
  4. samf48

    How to calibrate multiple magnetometers for mass production

    Thanks for the replies, I guess the key is creating enough of a magnetic field so much so that I can rely on it drowning out the other sources of magnetic interference in the room. Believe it or not competitors don't post too much about their calibration techniques, I did find some whitepapers...
  5. samf48

    How to calibrate multiple magnetometers for mass production

    How would one go about calibrating several magnetometers in a production environment? The magnetometer is being used for the purposes of a compass. Currently I'm calibrating them one-by-one in an open field free from magnetic interference (i.e. no hard or soft iron around) by rotating my...
  6. samf48

    Request for Proposal Template

    Right, this isn't a pacemaker or anything like that. I'm just looking for something basic to get started. Did you post a link?
  7. samf48

    Request for Proposal Template

    Hello, I am an engineer at a small medical device company and have hired an engineering firm to develop a medical device for our company. The first document I have been charged with providing them is a "Request for Proposal" or a "Request for Quotation". Since I am an engineer, I know that...

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