Precision 0-10 volt DC source.
(2) Place the V-REM-V switch in the V position.
(3) Set the divider dials to the desired output voltage, which will
appear between terminal 22 (positive) and the bridge common terminal, 4.
PRINCIPLES OF OPERATION.
a. General. The power measurement system consists of two units: a self-
balancing bolometer bridge and a reference voltage generator. The latter can
also serve as a voltmeter or a power stabilizer. The self-balancing bridge is
a DC substitution type. Improved performance and size reduction have resulted
from redesign and the availability of improved components. The new instrument
b. Basic System.
(1) Figure 9 shows a block diagram of the basic measurement system. The
self-balancing bridge unit appears to the left and the reference generator to
the right of the dotted line. Not all of the front panel controls appear in
the figure; however, two of the front panel links and the panel meters are
shown. Operation of the bridge is