Precision impedance analyzer

Changzhou Tonghui Electronics adopts the currentPrecision impedance analyzerThe successful development of a new generation impedance testing instrument represents a new height for domestically produced impedance testing instruments. The TH2851 series impedance analyzer is based on the Windows 10 operating system and has a fully computerized interface, making testing more intelligent and convenient. The TH2851 series impedance analyzer has also surpassed the 120MHz frequency bottleneck of similar foreign instruments; Solved the defect of similar foreign instruments that can only analyze and cannot be tested separately; The Chinese English interface also solves the embarrassment of foreign instruments having only an English interface; Adopting both single test and analysis interfaces makes testing easier. Thanks to the automatic balancing bridge technology of *, a basic accuracy of 0.08% can be guaranteed in the frequency range of 10Hz-130MHz. The testing speed of up to 5ms and impedance testing range of up to 1G Ω can meet the measurement requirements of components and materials, which is particularly beneficial for the measurement of low loss (D) capacitors and high quality factor (Q) inductors. The four terminal port configuration method can effectively eliminate the influence of electromagnetic coupling on the test line, and expand the lower limit of low impedance testing capability ten times lower than that of conventional five terminal configuration instruments.

　　Precision impedance analyzerPerformance characteristics

Test frequency: 10Hz-130MHz

■ High precision: Adopting automatic balancing bridge technology, four terminal testing configuration

High stability and consistency

■ High speed: * Testing speed as fast as 5ms

■ High resolution: 10.1-inch capacitive touch screen, resolution 1280 * 800

Five testing methods: point measurement, list scanning, graphic scanning, equivalent circuit, and crystal oscillator analysis

1601 point multi parameter list scanning function

Four parameter measurement

Automatic Level Control (ALC) function

■ 4-channel graphic scanning function, each channel can display 4 curves, and there are 14 split screen display modes for channels and curves

■ * Sorting: LCR mode with 10 levels of sorting

■ Graphic scanning mode, where each curve is sorted separately

High compatibility: Supports SCPI instruction set, compatible with KEYSIGHTE4990A, E4980A, E4980AL, HP4284A.

A. The application of high-precision automatic balancing bridge technology can achieve ideal measurement accuracy in the frequency range of 10Hz-130MHz and impedance range of 1m Ω -100M, with a high accuracy of 0.08%, far higher than the accuracy of impedance analyzers and network analyzers using RF reflection measurement method.

B. The following figure shows the curve of measuring a 100 Ω resistance at a speed of 5 and a test frequency of 1MHz with high stability and consistency. It can be seen from the figure that the trajectory noise is ≤ 0.003% (≤± 0.0015 Ω)

　　 C. High speed

D. 10.1-inch large screen, four measurement parameters, allowing details to be clearly displayed. 10.1-inch touch screen, 1280 * 800 resolution, Windows 10 system, Chinese and English operation interface, supporting keyboard, mouse, LAN, VGA/HDMI interfaces, bringing unparalleled operational convenience.

The advantage of a large screen is that all test parameters, sorting parameters, sorting results, function selections, and other parameters can be placed on the same screen without appearing crowded or cluttered. At the same time, it can display four measurement parameters, which can be adjusted arbitrarily. The button on the left side of the screen allows for quick selection of 8 sets of test parameters.

E. The enhanced list scanning function allows for multiple scanning of 1601 points in the list, and each point can be individually set with testing conditions such as testing frequency, testing voltage, DC bias, etc.

F. The graphical interface for analysis

*Multi channel can display an additional 4 curves. There are fourteen split screen display methods for channels and curves.

G. Equivalent circuit analysis tests that different types of devices in real life can be equivalent to simple impedance devices with three parameters and four models, and four parameters and three models. The equivalent circuit analysis testing function provides seven basic circuit models for equivalent these devices.

The impedance fitting curve of the simulated equivalent circuit parameter values can be compared with the actual measured impedance curve, and the selected model can also be fitted based on the parameters you input.

The equivalent circuit model can be directly output as a TXT document for users to save and use.

application

Passive components:

Impedance parameter evaluation and performance analysis of capacitors, inductors, magnetic cores, resistors, piezoelectric devices, transformers, chip components, and network elements.

Semiconductor components:

Testing and analysis of parasitic parameters in LED driver integrated circuits; C-VDC characteristics of varactor diodes; Parasitic parameter analysis of transistors or integrated circuits.

Other components:

Impedance evaluation of printed circuit boards, relays, switches, cables, batteries, etc.

■ Medium material:

Evaluation of dielectric constant and loss angle of plastics, ceramics, and other materials.

■ Magnetic materials:

Evaluation of magnetic permeability and loss angle of ferrites, amorphous and other magnetic materials.

Semiconductor materials:

The dielectric constant, conductivity, and C-V characteristics of semiconductor materials.

■ LCD unit:

C-V characteristics such as dielectric constant and elastic constant.