Oscillator of SMW
measurement and test equipment
for network analysers, plasma diagnostics and spectrometry
heterodyne receivers, gyrotron frequency and spectrum analysis
SMW-XX series is a fully packaged swept signal generator. It
consists of a BWO tube, OB-XX series, permanent or electric magnet, mechanical
tube alignment system and power supply. An optional, fully closed
water cooling system is available. On the photo, the BWO tube
is shown installed in an 0.8T permanent magnet. The power supply is
shown in the right photo (upper cover is removed).
The sweeper unit
contains all electronic circuitry and power supplies required to operate
the BWO. The BWO tube is fully protected from application of improper
operating voltages. A water flow alarm system provides protection
from overheating, and the system includes a high voltage monitor.
An input jack allows output frequency to be controlled by an external
voltage, if desired, and the generator can be phase locked to other
equipment. Each sweep generator is supplied with individual calibration
data for control voltage vs. output power vs. frequency. Typical relationships
between these parameters are shown in the plots below for 180-260
GHz model SMW-24:
The results presented above were obtained under a contract
with JET (Joint European Torus, the world's largest tokamak).
* Minimal output power depends on tube usage, and can be different for
various tubes of the same model
specified is with the permanent magnet configuration.
PC microcomputer Controller and software are available upon request.
Model Number SMW-x-A, where
A - AC input voltage.
order BWO sweeper with the following specification: operation frequency
258-375 GHz, input AC voltage 110ACV, it should be ordered as SMW