User Tools
playground:nmr
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | Next revision Both sides next revision | ||
|
playground:nmr [2012/03/08 18:06] jacobs |
playground:nmr [2012/03/09 09:20] jacobs |
||
|---|---|---|---|
| Line 18: | Line 18: | ||
| - If this frequency is not close enough to the desired frequency, repeat the nmrgoto command and it should get closer. The nmr moves to the entered frequency by estimating the number of steps needed to advance from the current position and then moving that number of steps. The closer you are to the desired frequency, the closer the end result will be. | - If this frequency is not close enough to the desired frequency, repeat the nmrgoto command and it should get closer. The nmr moves to the entered frequency by estimating the number of steps needed to advance from the current position and then moving that number of steps. The closer you are to the desired frequency, the closer the end result will be. | ||
| - Now that the nmr is set to a frequency slightly lower than the frequency you want the magnet to be set to we can begin increasing the analyzer magnet control upward toward the current that will show a resonance on the nmr. Remember that because of magnet hysteresis, we can only increase the magnet current from this point on. If we decrease the magnet current we will have to recycle the magnet and start over for an accurate nmr value. | - Now that the nmr is set to a frequency slightly lower than the frequency you want the magnet to be set to we can begin increasing the analyzer magnet control upward toward the current that will show a resonance on the nmr. Remember that because of magnet hysteresis, we can only increase the magnet current from this point on. If we decrease the magnet current we will have to recycle the magnet and start over for an accurate nmr value. | ||
| - | - | + | |
| + | * {{HVEC_NMR.pdf|Original HVEC NMR Manual. Main frequency adjustment control and tracking feature now obsolete. See above new procedures.}} | ||
| | | ||
playground/nmr.txt · Last modified: 2023/05/08 10:42 by carter
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 3.0 Unported
