Differences

This shows you the differences between two versions of the page.

--- playground:nmr [2023/04/14 15:40] – carter
+++ playground:nmr [2026/06/25 16:12] (current) – external edit 127.0.0.1
@@ Line 4: / Line 4: @@
    - Depress POWER switch if not illuminated.
    - After a 1 minute warm up period a horizontal line should appear on the oscilloscope face.
+   - Note: The oscilloscope now used is located on the console under the BPM oscilloscope (up and left of the NMR).
    - You may have to adjust the VERTICAL POSITION control to find the horizontal line.
    - Set the HORIZONTAL SWEEP to 60.
@@ Line 33: / Line 34: @@
    -- "retune" in the blue terminal window and the switcher magnet and each quadrupole magnet will be set to the new value scaled by the ratio of the base analyzer current and the new analyzer current.
+Note:  It is possible using the up and down commands to move the NMR oscillator frequency past its minimum or maximum value.  When this happens, using the up command will DECREASE the frequency and using the down command will INCREASE the frequency.  If this happens the remedy is to use the opposite command of the one that caused the oscillator to go beyond its end of range (if up caused the issue, issue a down command significantly large to bring the oscillator back more than the command that caused the error.  For example, if the command "up 100" caused the NMR oscillator to go beyond its maximum value, issue the command "down 200" to move the oscillator back below its maximum value.
 {{HVEC_NMR.pdf|Original HVEC NMR Manual. Main frequency adjustment control and tracking feature now obsolete.  See above new procedures.}}
+===== NMR principal of operation explained on YouTube =====
+  * [[https://youtu.be/JO_EHceV9sk | NMR principal explained at 20 minute point]]
 ----