1. Broadband Turnkey System Concept 80
Novocontrol Technologies

2. Novocontrol Technologies GmbH & Co. KG
Top-class impedance analyzers with test interfaces for various applications
Reliable sample environment for various temperature ranges and pressure variation
Turnkey Dielectric and Impedance Spectrometers
Software for instrument control, automation, and data analysis
Sample cells for a large variety of applications

3. Impedance Measurement Requirements for Dielectric Measurements
Broad frequency range
Wide impedance range
Small loss factors tan() = ’’ / ’ = -Zs’ / Zs’’
Sample is in first order approximation a capacitor
Capacitive impedance Z = j / (C) Relaxation usually adds small changes in Z DC conductivity adds parallel resistance

4. Concept 80
(Table not included)

6. Principle of measurement up to MHz frequencies using the Alpha-A
Voltage
Current harmonic base wave Fourier transform over n periods
Permittivity
Empty cell capacity
Conductivity
d electrode spacing, A electrode area

7. Alpha-A modular measurement system

8. Alpha-A Impedance analyzer system highlights
Broad frequency range 3 µHz MHz (> 13 decades)
Ultra wide impedance range Ω (18 decades) covers range from conductors to best isolators in a single instrument set-up
Ultra wide capacity range F allows broadband measurement of smallest capacities down to 1 fF. 
High phase accuracy ( °) and loss factor tan(δ) absolute accuracy (3.10-5) for low loss dielectric materials and isolators broadband characterization.
Supports non-linear Dielectric, Conductivity and Impedance Spectroscopy or gain phase measurements in combination with all test interfaces.

9. Measurement examples Alpha total impedance range
Typical results covering 18 orders of magnitude dynamics

10. Alpha-A Impedance analyzer system highlights
High speed measurements for online monitoring of time-dependent processes in the 5 ms range
Automatic self calibration and diagnosis by user compensates long term internal drift and verifies functionality.
Precision digital frequency response analyzer up to 40 MHz for two channel gain phase measurements with 0.001° phase - and 10-5 in amplitude resolution included. Operates like a broadband lock-in amplifier with two channels, extended accuracy and frequency range.
Optional control WinDETA software for turnkey calibration, operation, data evaluation, 2- and 3- dimensional graphical representation including non linear spectroscopy.

11. E4991A RF Material Analyzer
Frequency range: 1 MHz .. 3 GHz
Impedance range: 100 m k
Accuracy: % of measured value (best)
Capacity range : fF nF
tan() range: 3 m .. 3 k tan() accuracy: 3 m (best)
Phase angle range: degrees Accuracy: ° (best)
Dc bias voltage range: 40 V;
Accuracy mV
User calibrations Load, short, open, low loss capacitor
sample cell short and open
Sample cells: Two electrode RF reflection cell
for temperatures from °C

12. Concept 80 System Constituents:
Two impedance analyzers with sample cells:
a) Alpha-A (3 µHz to 20 MHz) with Alpha Active Sample Cell ZGS
b) E4991A RF Materials Analyzer (1 MHz to 3 GHz) with RF Dielectric sample cell BDS 2200 (14 mm version) or BDS 2100 (7 mm version)
RF mounting stage
Quatro Cryosystem: -160 °C to 400 °C
Full software package WinDETA+WinPLOT+WinTEMP+WinFIT
Data Acquisition Unit (computer with GPIB interface, 22” LCD monitor, printer)

13. Alpha-A Active Sample cell ZGS (3 µHz .. 20 MHz; 40 MHz with Alpha-AT)
Sample cell with integrated test interface (current-to-voltage converter/amplifier) and optimized frequency performance.
High-performance dielectric, conductivity or impedance measurements from 3 µHz up to 40 MHz (with Alpha-AT only).
Rigid air-line connection from electronics to electrodes suppresses performance-limiting cable effects at high and low frequencies due to cable inductance and piezo-induced charges caused by mechanical noise.
Temperature range: -160 °C °C

14. RF sample cell and extension line (1 MHz to 3 GHz)
BDS 2200 RF dielectric sample cell

15. RF extension line (1 MHz to 3 GHz)
High-temperature stable, low-loss precision line with two APC-7 connectors and Pt100 temperature sensor.
Mounted between the impedance input of the RF Analyzer and the RF sample cell for thermal isolation.
The combination of sample cell and extension line can be operated in the temperature range from -160°C to 400°C.

16. Quatro Cryosystem: High Precision Turnkey Temperature Control4
Range: -160°C to 400°C
Ramps: 0.01°C/min to 20 °C/min
Stability: 0.01°C
Overshooting after set point step:
typically < 0.2°C
Stabilization times typically < 8 minutes
(for 0.1°Cstability)
RC network measurement Alpha-AT+ZG4 now operates up to 40 MHz! Scanned copy to be inserted.
low nitrogen consumption due to automatic pressure-temperature adaptation
automatic adaptation of controller parameters
vacuum-isolated cryostat and nitrogen lines

17. Quatro Cryosystem
A heating element builds up a specified pressure in the liquid nitrogen dewar in order to create a highly constant nitrogen gas flow.
Pressure and temperature in the dewar are measured by two channels of the Quatro controller.
Heated by a gas jet, the nitrogen gas flows directly through the sample cell which is mounted into the cryostat.
The gas and sample temperatures are measured by the two remaining channels of the QUATRO controller.
The four channel arrangement allows stable, fast and safe system operation in combination with low liquid nitrogen consumption (economical mode).
The cryostat is vacuum isolated by a two- stage rotary vane vacuum pump, providing thermal isolation by low vacuum
(< 10 µbar). 4
RC network measurement Alpha-AT+ZG4 now operates up to 40 MHz! Scanned copy to be inserted.

18. Quatro Cryosystem
RC network measurement Alpha-AT+ZG4 now operates up to 40 MHz! Scanned copy to be inserted.

19. WinDETA Control and Data Visualisation Software
RC network measurement Alpha-AT+ZG4 now operates up to 40 MHz! Scanned copy to be inserted.

20. WinDETA Control and Data Visualisation Software
Control and evaluation software for dielectric and impedance spectroscopy
Uniform user interface for several dielectric/ impedance analyzers and temperature controllers nearly independent of hardware
Flexible experiment set-up: control of frequency, temperature (WinTEMP option), ac voltage, dc bias, and time in any multi dimensional arrangement
Evaluates over 30 different electric quantities like e.g. permittivity, conductivity, inductance, etc. from measured impedance
Graphical online display of measured data in two or three dimensional diagrams (WinPLOT option), temperature curve and system status
Automatic calibration of hardware devices and sample cells
Ex- and imports data in several flexible ASCII formats
Curve fitting software WinFIT for equivalent circuit modelling, data transformations like WLF, Havriliak-Negami, and time domain conversion
Supports Win2000, XP, Vista, Win7.
RC network measurement Alpha-AT+ZG4 now operates up to 40 MHz! Scanned copy to be inserted.

21. WinFIT Curve Fitting Software
Non linear curve fitting in the frequency domain
Special relaxation fit functions like, e.g, Havriliak Negami, Cole Cole, Cole Davidson, Debye etc.
Automatical evaluation of a series of spectra taken at various temperatures
Separation of relaxation and conductivity contributions
Automatic creation of master plot representations
Non linear curve fitting in the temperature domain including Vogel - Fulcher and Williams Landel Ferry (WLF) fit functions
Relaxation time and maximum relaxation frequency determination
Arrhenius activation plot related to activation energy and glass temperature
Dielectric data conversion (Fourier Transform) from frequency to time domain
Complete dielectric time domain representation including relaxation time distribution, relaxation function, step response function, peak answer function, time dependent dielectric constant and conductivity
Shifts, deletes and inserts data points with a single mouse click
Connects data curves being measured in different frequency ranges with different analyzers
RC network measurement Alpha-AT+ZG4 now operates up to 40 MHz! Scanned copy to be inserted.