ZG2
Test Interface for Dielectric, Conductivity, Impedance Two-Electrode Spectroscopy and Gain Phase Measurements for the Alpha-A Modular Measurement System
The ZG2 extension test interface for the Alpha-A modular measurement system features high quality general purpose dielectric, conductivity, impedance spectroscopy and gain phase measurements.
ZG2 is an economical version of the ZG4 interface. It has the same functionality as ZG4, but supports only 2 electrode measurements, but no 3 and 4 electrode measurements.
ZG2 has the same functionality as the ZGS interface but is not integrated in a parallel plate sample cell as ZGS.
Like all Alpha-A test interfaces, ZG2 has high general purpose performance and is especially recommended for
-
dielectric or conductive material samples in combinations with the Novocontrol BDS 1200 parallel plate sample cell;
-
passive customer own made 2 electrode sample cells;
-
electronic components or materials.
Compared to the ZGS active cell interface, the combination ZG2 + BDS 1200 is less accurate. On the other hand, ZG2 is easier to use in combination with other sample cells and therefore somewhat more flexible as ZGS.
The external interface design allows to locate ZG2 close to the sample in order to minimize cable effects. Cables in the sample impedance path may limit the usable high frequency range due to inductance and contribute low frequency noise for high impedance samples.
Additional Information
Alpha-A modular measurement system
Test
Interfaces overview including basic concepts and application examples (173
kb PDF)
Specification charts
(70 kb PDF)
| ZG2 Short Specification | |
| Ranges | |
| Frequency | 3 µHz ... 40 MHz (13.1 decades) * |
| Impedance | 0.01 .. 1014 Ω (16 decades) |
| Capacitance | 1 fF ... 10 F (16 decades) |
| Loss factor tan(δ) |
10-5 .. 104 |
| AC signal out | 100 µV .. 3 Vrms |
| DC bias out | -40 VDC .. +40 VDC, 70 mA max ** |
| Signal
generator output impedance |
50 Ω |
| Voltage in | < ± 4.3 Vp dc or ac coupled |
| Basic Accuracy | |
|
Relative Impedance, |
< 3.10-5
*** |
| Phase Angle | < 2 m° *** |
| Resolution | |
|
Relative Impedance, |
< 10-5 |
| Phase Angle | < 0.6 m° |
| User Calibrations | load, short, open, internal self calibration and diagnostics |
* in combination with the Alpha-A mainframe type AT
** requires dc bias option B of the Alpha-A mainframe
*** for details refer to specification charts