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B.70 Rulbus Pulser (J-band version)
Module name: rb_pulser_j
Additionally required modules: rs_sml01 if
RF pulses are to be used.
Description: Pseudo-pulser for J-band spectrometer in Leiden,
using the
Rulbus (Rijksuniversiteit Leiden BUS) - requires Linux device driver and
library that are part of the fsc2 package). This pulser isn't a
normal stand-alone device but consists of a combination of (currently)
10 Rulbus RB8514 delay cards and 2 clock cards (one fixed frequency
100 MHz card and a RB8515 card with adjustable frequency) as well as
requiring the Rohde & Schwarz SML01 synthesizer (with the
SML-B3 option) in order to be able to create RF pulses.
The timebase of this pulser is fixed to 10 ns, but this can be changed
by using a second adjustable clock card and a modification of the
configuration file for the pulser. Its number of functions is restricted to
MICROWAVE, RADIO_FREQUENCY and DETECTION. Moreover, only
a maximum of three active MICROWAVE pulses is possible and only a single
active RF and DETECTION pulse. To be able to create an RF
pulse the R&S SML01 synthesizer mentioned above is required. The
RF and DETECTION pulse can only start after the first
MICROWAVE pulse and the length of pulses and the distance between
them is limited to about 167 ms (and that's also the maximum delay
between the start of the pulse sequence and the start of the first pulse of
a function).
Status: Tested
Controlled via: Rulbus
Supported functions:
- `pulser_name()'
- `pulser_state()'
- `pulser_update()'
- `pulser_shift()'
- `pulser_increment()'
- `pulser_reset()'
- `pulser_pulse_reset()'
- `pulser_show_pulses()'
- `pulser_dump_pulses()'
- `pulser_pulse_minimum_specs()'
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This document was generated by Jens Thoms Toerring on September 6, 2017 using texi2html 1.82.