Difference between revisions of "February 1, 2018 - Wien magnet coil follow-up discussion"
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(Created page with "Danny and I met again w/ Jeff to review his plan for winding coil: Jeff's plan: a) Will build spacer and shim around which coil will be round b) Will run first layer of wire...") |
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| Line 2: | Line 2: | ||
Jeff's plan: | Jeff's plan: | ||
| − | a) Will build spacer and shim around which coil will be round | + | :a) Will build spacer and shim around which coil will be round |
| − | b) Will run first layer of wire down shop, mount bobbin to winding fixture to wind inside-out (like cyclotron coil) | + | :b) Will run first layer of wire down shop, mount bobbin to winding fixture to wind inside-out (like cyclotron coil) |
| − | c) After first layer shim will get knocked out and potted w/ hy-sol, but inside fixture to mitigate bending | + | :c) After first layer shim will get knocked out and potted w/ hy-sol, but inside fixture to mitigate bending |
| − | d) After second layer both will be potted w/ hy-sol but inside fixture, to mitigate bending | + | :d) After second layer both will be potted w/ hy-sol but inside fixture, to mitigate bending |
Joe reported: | Joe reported: | ||
| − | a) Coil pair is not that resistive 0.3-0.4 ohm, agrees w/ Jay's TN | + | :a) Coil pair is not that resistive 0.3-0.4 ohm, agrees w/ Jay's TN |
| − | b) At #13 square wire as-built operating 20A w/ leads will drop <10V and coil will produce <160W | + | :b) At #13 square wire as-built operating 20A w/ leads will drop <10V and coil will produce <160W |
We evaluate wire chart and came to conclusion: | We evaluate wire chart and came to conclusion: | ||
:Plan A - will attempt 12-13 turns of #13 square wire, but if winding square not efficient/effective | :Plan A - will attempt 12-13 turns of #13 square wire, but if winding square not efficient/effective | ||
:Plan B - will wind 11 turns of #12 round wire (#13 round is 1.48 more resistive than #13 square, too much) | :Plan B - will wind 11 turns of #12 round wire (#13 round is 1.48 more resistive than #13 square, too much) | ||
Latest revision as of 14:30, 2 February 2018
Danny and I met again w/ Jeff to review his plan for winding coil:
Jeff's plan:
- a) Will build spacer and shim around which coil will be round
- b) Will run first layer of wire down shop, mount bobbin to winding fixture to wind inside-out (like cyclotron coil)
- c) After first layer shim will get knocked out and potted w/ hy-sol, but inside fixture to mitigate bending
- d) After second layer both will be potted w/ hy-sol but inside fixture, to mitigate bending
Joe reported:
- a) Coil pair is not that resistive 0.3-0.4 ohm, agrees w/ Jay's TN
- b) At #13 square wire as-built operating 20A w/ leads will drop <10V and coil will produce <160W
We evaluate wire chart and came to conclusion:
- Plan A - will attempt 12-13 turns of #13 square wire, but if winding square not efficient/effective
- Plan B - will wind 11 turns of #12 round wire (#13 round is 1.48 more resistive than #13 square, too much)