Recent content by Zeusex

  1. Z

    Electromagnet magnetic field issue

    Brackets I have are from 1010, 1020 and SS430. 2mm thick. Laser cut blanks and then bent. I know that cold work on steels and stainless steels increases the magnetism. I will have to explore the Wiegand sensor and how I can use it to solve the problem.
  2. Z

    Electromagnet magnetic field issue

    Yes same gauge (0.24mm), pure copper and enamelled. Core (pin) is from 1010, also tried 1020, SS430 and a random iron bolt I found. 1010 and 1020 pins were more magnetic than the rest. Brackets I have are also from 1010, 1020 and SS430. With Pin of 1010/1020, I notice that the magnetic...
  3. Z

    Electromagnet magnetic field issue

    Measured the amps on our coil, it is same as the reference, 0.45A. Tried the bolt, but the pin made of 1010 was more magnetic compared to bolt. But at the bracket, the magnetic forces are lower. Any more ideas? I think that the bracket needs to be symmetrical. Next week we can try to build and...
  4. Z

    Electromagnet magnetic field issue

    1010 is a mild steel too which is why we selected it.. I don't know what grade is the bolt I found, hopefully A36
  5. Z

    Electromagnet magnetic field issue

    Thanks. Tomorrow I will try to replace the pin with a cheap iron bolt. How close the bolt diameter to be in relation to inner diameter of the bobbin?
  6. Z

    Electromagnet magnetic field issue

    Can there be a shorted turn in the coil and yet the overall resistance be as needed?
  7. Z

    Electromagnet magnetic field issue

    Alright. I used the same power supply for both magnets. This power supply can delivery upto 10A. We tried 1010 steel, SS430 and did not observe any difference.
  8. Z

    Electromagnet magnetic field issue

    Bracket is not symmetric at both ends of bobbin. Can this cause magnetic field leak and make the magnet weaker by ten times?
  9. Z

    Electromagnet magnetic field issue

    DC 12V. Yes wire gauge is same (0.24mm). Reference consumes 0.45A. I haven't measured what our coil consumes yet. I can measure tomorrow. Resistance of the both coils are same which is 25 ohms.
  10. Z

    Electromagnet magnetic field issue

    Hi Guys We are a bunch a mechanical engineers trying to build a simple electromagnet. Our design is based on a very similar magnet. However, our version is about 10 times less magnetic and we are wondering why. Our coil has exactly same length, same number of layers and turns. What is possibly...
  11. Z

    So k is 3122 N/m

    So k is 3122 N/m
  12. Z

    Thanks. Can you see the graph? [MEDIA]

    Thanks. Can you see the graph?
  13. Z

    Hi, would you mind if I share my experimental data here? Thanks

    Hi, would you mind if I share my experimental data here? Thanks
  14. Z

    Forces on a rope when catching a free falling weight

    Sure. I will do that and share the plot. Thanks.
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