The following list of VNMR commands and parameters is intended solely as a quick reference and is by no means intended as comprehensive. Equivalent Bruker commands and parameters are shown in parenthesis and examples are given when appropriate.
- su (ii) Setup the system hardware to match the current parameters. Does not start the acquisition.
- acqi (bsmsdisp) Opens the acquisition interface window for interactive locking and shimming.
- ds Diplay spectrum in the Graphics Window
- dps Display pulse sequence in the Graphics Window
- dg Display the ‘group’ processing/ acquisition parameters
- flip Switches the Graphics Window or the Text Window to the front of the screen
- rt (re) Retrieve FID’s from a file into the current experiment Example: rt(‘/directory/mydatafile’)
- svf (wr) Saves current parameters, text, and FID in the current experiment to a file. By default svf will prompt you for a filename or you may add the filename and / or path. Example: svf(‘/directory/mydatafile’)
- rtp (rj) Retrieves parameters from a file or FID into the current experiment. By default rtp will prompt you for a filename or you may add the filename and/ or path. Example: rtp(‘/directory/mydatafile’)
- svp (wj) Saves parameters from the current experimentat to a file. By default svp will prompt you for a filename or you may add the filename and/ or path. Example: svp(‘/directory/mydatafile’)
- rts (rsh) Retrieves a shim file and loads the shim values into the current experiment
- svs (wsh) Save the current shim values to a shim file. By default you will be prompted for a filename or you may add the filename and/ or path as options.
- e (ej) Eject sample
- i (ij) Insert sample
- tn Changes the value of the transmitter nucleus. Examples: tn=’H1′ or tn=’C13′ etc. Can also be used to query the current status. Example: tn?
- dn Changes the value of the decoupler nucleus. Examples: dn=’H1′ or dn=’C13′ etc. Can also be used as a query.
- tof (o1) Controls the exact positioning of the transmitter. As the value of tof increases the tansmitter moves to higher frequencies (moves toward the left).
- dof (o2) Controls the decoupler offset in the same manner as tof.
- tpwr Controls the transmitter power level (in dB). Can be used as a command, i.e., tpwr=30 or as a query, i.e., tpwr?
dpwr Work identical to tpwr for the decoupler channel. - dm Determines state of the decoupler (decoupler mode) at different times during the pulse sequence. Typical options are ‘y’ and ‘n’.
- pw Transmitter pulse width in ms. If you are recieving an ADC overflow error type pw=pw/2 ga. Repeat as necessary.
- at (aq) Length of each individual FID acquisition time.
- sw (sw) Sets the total width of the spectrum. To enter a value 200ppm type sw=200p.
- np (td) sets number of data points to be acquired.
- fn (si) Fourier number.
- nt (ns) Set the number of tranients (or scans) the instrument will perform of make up a FID. Range is 1 to 1e9.
- ct Number of completed transients in the current experiment.
- bs Block size – determines how often the data in the current experiment is saved.
- lb Lorentzian line broadening
- time (expt) Calculate the time required for the experiment to complete based on the current parameters.
- array Array an experimental parameter. Array will prompt you for the parameter to array, the number of steps, the starting point, and the step size.
- da Displays arrayed acquisition parameters in the Text Window.