The traditional distributed computing based on message passing. such as MPI (Message Passing Interface) and PVM (Parallel Virtual Machine), because of its abstract level lower, it will not achieve the programmer from the lower parallel strategy freed.
Each channel is controlled by a programmer via a fiber-optic cable.
The programmer operates in conjunction with a computer and provides, in each channel, a prescribed delay of the pulses generated relative to the synchronizing pulse common to the entire system.
Pulse Train Microprocessor Programmer for NMR Relaxometers-Diffusiometers
A pulse train programmer for a spin-echo NMR relaxometer-diffusiometer is based on an AT89C51-24PC microcontroller.
The programmer ensures the arbitrary generation of pulse trains with a minimum train step of 30 μs and recording of up to 30?000 10-bit amplitudes of spin-echo NMR signals with a minimum quantization step of 3 μs.