Question from NMRWiki Q&A forum How do you build an NMR power amplifier?

		BioNMR > NMR community > News from other NMR forums
[Question from NMRWiki Q&A forum] How do you build an NMR power amplifier?

Webservers

NMR processing:

MDD

NMR assignment:

Backbone:

Side-chains:

NOEs:

Structure from NMR restraints:

Ab initio:

Fragment-based:

Rosetta-NMR (Robetta)

Template-based:

GeNMR

I-TASSER

Refinement:

Amber

Structure from chemical shifts:

Fragment-based:

Homology-based:

Torsion angles from chemical shifts:

Preditor

TALOS

Promega- Proline

Secondary structure from chemical shifts:

CSI (via RCI server)

TALOS

MICS caps, β-turns

d2D

PECAN

Flexibility from chemical shifts:

RCI

Interactions from chemical shifts:

HADDOCK

Chemical shifts re-referencing:

NMR model quality:

NOEs, other restraints:

Chemical shifts:

RDCs:

Pseudocontact shifts:

Protein geomtery:

SAVES2 or SAVES4

Quality Control Check

NMR spectrum prediction:

FANDAS

MestReS

V-NMR

Flexibility from structure:

Backbone S2

Methyl S2

B-factor

Molecular dynamics:

Gromacs

Amber

Antechamber

Chemical shifts prediction:

From structure:

Shiftx2

Sparta+

Camshift

CH3shift- Methyl

ArShift- Aromatic

ShiftS

Proshift

PPM

CheShift-2- Cα

From sequence:

Shifty

Camcoil

Poulsen_rc_CS

Disordered proteins:

MAXOCC

Format conversion & validation:

CCPN

From NMR-STAR 3.1

Validate NMR-STAR 3.1

NMR sample preparation:

Protein disorder:

DisMeta

Protein solubility:

Isotope labeling:

Solid-state NMR:

Thread Tools

Search this Thread

Rate Thread

Display Modes

11-24-2011, 02:49 PM

nmrlearner

Senior Member

Join Date: Jan 2005

Posts: 23,697

Points: 193,617, Level: 100

Level up: 0%, 0 Points needed

Activity: 50.7%

Last Achievements

Award-Showcase

NMR Credits: 0

NMR Points: 193,617

Downloads: 0

Uploads: 0

How do you build an NMR power amplifier?

How do you build an NMR power amplifier?

And how to you match it to the NMR coil?

Basically I'm looking to perform NMR experiments with frequencies in the 500KHZ region. I already have an arbitrary function generator that I can program with the required pulses at that frequency, now I need to amplifier the signal, and deliver the current to a coil.

How do build an amplifier that can drive a lot of current into a coil at that frequency? Do I resonate the coil with a capacitor, and if so, how do I ensure the resulting circuit won't ring, and ruin the pulse sequences?

Thanks!

Check if somebody has answered this question on NMRWiki QA forum

Did you find this post helpful?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[NMR images] Schematics: NMR Power Supply: http://www.conspiracyoflight.com/NMR/NMR3.jpg conspiracyoflight.com 29/10/2011 12:16:16 AM GMT Schematics: NMR Power Supply: More...	nmrlearner	NMR pictures	0	10-29-2011 12:15 AM
[Question from NMRWiki Q&A forum] calculating power level with stdisp calculating power level with stdisp For some reason the shape tool has some sort of glitch that I can't calculate a power level for a wurst 10 ms pulse 180 rotation for a a 522 max gamma ~ for over 3000 Hz, with an option "Analyze adiabatic shape". It insists it is not an adiabatic shape. So I tried opening the same file shape tool in XWIN-NMR shape tool and the same problem occured but this time it gave me the Hz covered in maximum gamma when I included the degrees of rotation as well as the time for the pulse. it covers a 3ppm bandwidth etc. I think I've done this many years...	nmrlearner	News from other NMR forums	0	08-11-2011 02:30 PM
[CNS Yahoo group] How to build N-terminal PCA? How to build N-terminal PCA? Hi, all~ I have got a problem on building the N-terminal pyroglutamic acid (PCA). I'm afraid I have successfully defined .top, .param and *.link files of More...	nmrlearner	News from other NMR forums	0	07-27-2011 11:24 AM
ROESY spin-lock power I'm using roesyph.2 pulse sequence and I would like to know how to calculate spin-lock power in Hz for this experment. Thnx Justyna	sikorska.justyna	NMR Questions and Answers	1	03-10-2011 05:04 PM
[Question from NMRWiki Q&A forum] ROESY spin-lock power ROESY spin-lock power I'm using roesyph.2 pulse sequence (Bruker) and I would like to know how to calculate spin-lock power in Hz for this experiment. Thnx Justyna ps. I'm aware that for hard pulse it is 1/pw360, therefore can I assume that in this case it is 1/2*P25?	nmrlearner	News from other NMR forums	0	01-17-2011 02:40 AM
[Question from NMRWiki Q&A forum] Why RF irradiation will damage amplifier? Why RF irradiation will damage amplifier? Here our 1H amplifier of NMR spectrometer is damaged twice for long time or high power RF irradiation. Why the duty cycle is important for amplifier or probe?If the damage happens to amplifier, which part of it is broken? edit: The type of our spectrometer is Varian InfinityPlus for solids bought in 2003. I have no idea about the sort of amplifiers, just know the amplifier is for power output. Someone used about 80kHz 1H power for 1H decoupling during 100-200ms acquisition. The efficiency of the amplifier output droped gradually. The efficiency...	nmrlearner	News from other NMR forums	0	09-28-2010 10:03 PM
[BMNRC community] The decibel (dB) and NMR power level The decibel (dB) and NMR power level dB = 10 * log10 (Power out/ Power in) The Bel is the log of a ratio of two… Read the rest	nmrlearner	News from other NMR forums	0	08-23-2010 03:38 AM
the uninterruptible power supply Hi Guys, I am a new guy for NMR management. We just installed Bruker Avance 300. Does anyone have the information of uninterruptible power supply for this NMR? What are the requirements (vol, Amp and power)? It will be appreciated if you can send me the information of the manufacturer and the catalog number. Thanks in advance. Bo	bchen1	NMR Questions and Answers	0	04-17-2008 10:28 PM

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is On Trackbacks are Off Pingbacks are Off Refbacks are Off