1620 PRECISION CAPACITANCE MEASUREMENT SYSTEM

1620-A Precision Capacitance Bridge.
1620-A Precision Capacitance Bridge Measurement System is a 115 V self-contained assembly of the 1615-A Capacitance Bridge with appropriate oscillator and null detectors for measurements at 11 frequencies between 50 Hz and 100 kHz. For other frequencies, the 1615-A can be provided separately and the oscillator and detector selected to suit your needs.

1620 Precision Capacitance Measurement System

• Accurate and precision measurements of capacitance and dissipation factor

• Measurement of circuit capacitances

• Dielectric measurements

• Intercomparison of capacitance standards
  differing in magnitude by as much as 1000:1

• 0.01% accuracy, 1 ppm resolution

• Lever balance, in-line readout

• Reads dissipation factor or conductance

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.

Supplied:

1615-A Precision Capacitance Bridge.
1311-A Oscillator.
1232-A Tuned Amplifier and Null Detector.
1232-P2 Preamplifier added in 1620-AP.