Advanced Frequency Respon Analyzer for smart measurement
applications
Novocontrol Technologies offers an advanced solution for the electric/dielectric characterization of materials in a single mate-
rials analysis system. The central idea is modularity: a mainframe ALPHA-A analyzer is always combined with a test interface to form a measurement solution.
By variation of the test interface, the system provides instant ac-cess to all esntial characterization methods, like, e.g., dielec-tric/impedance or conductivity spectroscopy, high voltage engi-neering, non-linear spectroscopy, electrochemical impedance spectroscopy, frequency respon analysis. Switching to another method is done in less than a minute, simply by exchanging in-terfaces.Access to a new method is thus as easy as adding an additional test interface.美丽的丹顶鹤
The combination of all your experiments in a single materials analysis system yields substantial gains in usability, accuracy and flexibility with significant cost savings. In addition, the systems offer a unique combination of wide frequency range (12.5 dec-ades), ultra-wide impedance range (up to 16 decades) and ex-tremely high loss factor resolution in a single unit.
重庆市主城区地图This easy-to-u system, suitable for a virtually unlimited number of applications on the same platform, offers superior functionality and flexibility, incread throughput and improved results.Advanced Mainframe Analyzer for new
measurement solutions
KEY FEATURES
Broad Frequency Bandwidth
Due to its extremely wide frequency range, the ALPHA-A is ideally suited to analyze both slow and fast phenomena in materials. The DC resistance of a material, e.g., is usually extracted from the low fre-quency data, while molecular relaxations with relaxa-tion times in the nano cond regime require high frequency measurements.
Glass or polymers frequently show veral relaxa-tions which differ in their relaxation times; others,like, e .g ., ceramic conductors exhibit frequency-dependent features due to contributions of bulk, grain boundary, and electrode effects which may only be parated if a rather wide frequency range is moni-tored. Coverage of a broad frequency bandwidth is thus a crucial feature of instruments ud for the characterization of such phenomena.
In a single instrument, the ALPHA-A covers frequen-cies from 3 µHz up to 40 MHz with an unlimited num-ber of frequency points per sweep.
Ultra-wide Impedance Range The combination of ALPHA-A and its test interfaces offers a unique measurement solution that covers up to sixteen decades of impedance. With our standard
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interfaces, e.g., values between 0.01 W and 1014
小学语文作文评语are determined continuously, i e , without changing the tup.
The ALPHA-A bad systems are thus capable to fully characterize a wide range of materials spreading from insulators to metallic conductors.Ultra-high Pha Resolution
描写海棠的诗句Electrical impedance measurements on materials analyze the property to store and transfer electrical charge.
The properties are expresd, e.g., in the permittiv-ity and conductivity of a material. In the complex rep-
rentation of permittivity, denotes the pha angle between its imaginary and real parts, and tan repre-nts dielectric loss.
俄国农奴制When it comes to low-loss materials, the crucial property of a frequency respon analyzer is its pha resolution. In this respect, the ALPHA-A offers unsurpasd performance, i.e., high pha resolution of less than 0.001°, equivalent to a tan resolution of 10-5.
Noi Rejection
The ALPHA-A performs accurate digital correlation of amplitude and pha variation of the excitation and respon signals to achieve highly effective noi rejection
Harmonics Analysis
In general, the electrical behavior of materials is ex-pected to be linear. Some materials, however, exhibit an intrinsic non-linear behavior or are deliberately made non-linear for certain purpos or applications.The ALPHA-A analyzes higher harmonics of such materials by complex Fourier transformation .
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This opens the way to a new range of experiments, known as non-linear spectroscopy.
Auto Configuration
One key advantage of the modular system bad on the ALPHA-A mainframe is the large variety of avail-able test interfaces, each rving a particular meas-urement application.
Upon connecting to the ALPHA-A, test interfaces are automatically identified and their latest calibration data restored. It is thus not even necessary to recali-brate the system when switching test interfaces.
To the outside world, the ALPHA-A and its attached test interface form a single unit. This unique feature ensures a minimum of configuration effort when changing from one application to another.Common Software Platform
WinDETA is the complete Windows-bad software toolkit to drive a comprehensive range of measuring techniques It compris online graphics and post-analysis in various formats with overlays of meas-urement results for comparative studies.
Pretting facilities allow pre-programmed test -quences which run without ur intervention. System
control, data acquisition and documentation are automatically carried out by this software package.Data Transfer
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The alphanumeric display of the ALPHA-A shows all relevant measurement data such as initialization,calibration, measurement running, frequency, voltage,sample capacitance, sample resistance and tan Simultaneously, all measurement data are transferred to a computer via the GPIB (IEEE 488) bus.
Ordering information For information on test interfaces we refer to the relevant data sheets.
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