The 1620-A is a self-contained assembly
of the 1615-A Capacitance Bridge with appropriate oscillator (1311-A)and
null detector (1232-A) for
measurements at 11 frequencies between 50 Hz and 10 kHz. For applications
requiring other or higher frequencies, to 100 kHz, the 1615-A
Bridge can be supplied separately and the oscillator and detector
selected to meet your needs.
The 1615-A Capacitance Bridge brings to the measurement of capacitance,
the intercomparison of standard, and to the measurement of dielectric
properties an unusual degree of accuracy, precision, range, and
convenience.
High accuracy is achieved through the use of precisely wound transformer
ratio arms and highly stable standards fabricated from Invar and
hermetically sealed in dry nitrogen. For calibration these standards
can be intercompared.
Two- or Three- Terminal Connection - Accurate three terminal
measurements can be made even in the presence of capacitances
to ground as large as 1 µF, as might be encountered with
the unknown connected by means of long cables. The bridge has
the necessary internal shielding to permit one terminal of the
unknown capacitor to be directly grounded, so that true two-terminal
and three-terminal measurements can both be made over the whole
capacitance range.
Convenient Operation - For both capacitance and
dissipation factor, the balance controls are smoothly
operating, lever-type switches, The readout is digital
and decimal point is automatically positioned. Each
capacitance decade has a - 1 position to facilitate
rapid balancing.
The 1615-A elementary diagram is also clearly delineated
on the front panel of the bridge. Changes in
connections and grounds are automatically indicated,
as you switch the bridge terminals for different measurement
conditions.
Extend Range to 11.1 F - With the 1615-P1 Range- Extension Capacitor,
the 1615-A will measure to a maximum of 11.11110 F. This capacitor
plugs into front-panel bridge terminals and can be adjusted for
calibration to the bridge standards.
1615-A Capacitance Bridge
The 1615-A is an accurate, high-precision bridge for the measurement
and intercomparison of standard capacitors, circuit component
capacitors, or dielectric materials. It is available with oscillator
and detector in the 1620-A system. Or, to take full advantage
of its wide frequency range, the bridge can be ordered separately
for use with oscillator and detector especially selected for your
purposes. |
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