A computer-controlled digital pulse programmer for pulse NMR

Abstract

A versatile and flexible digital pulse programmer for pulse NMR experiments is described. Independently variable controls for pulse widths (0.1 μsec to 999.9 sec), delay between pulses (0.1μ sec to 999. 9 sec), sequence period (0.1μ sec to 9999.9 sec) and trigger delay (0.1 μsec to 9999.9 sec) are brought to the front panel. The programmer can be used under computer as well as manual control. The programmer is designed to be used with a DEC LSI-11 microcomputer having a Heathkit H11-2 parallel interface.