Speaker Impedance
measure of resistance a speaker puts on an amplifier.
See Also: Speaker, Microspeaker, Loudspeaker, SPL
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Electrical Impedance Tomography
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Electrical Impedance Tomography (EIT) is an imaging technique that visualizes conductivity or impedance distributions both in 2D and in 3D. Sciospec is partnering with world leading scientists in the field to deliver solutions that enable using EIT both in research and in practical applications.
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Overhead Line & Cable Impedance Test Sets
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T&R Test Equipment Overhead Line & Cable Impedance Test Sets
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Impedance Analyzer 1MHz-20Hz
IA1000
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Frequency range20 ~ 1MHzFrequency accuracy0.005%Frequency resolution0.001% in all frequency rangeTest signal level0.05 ~ 2.0 VrmsTest signal resolution0.001 VrmsTest signal output impedance100ΩImpedance Z range; basic accuracy0.0000Ω ~ 99.99
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Impedance meters
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Electronic components meters for circuit verification in laboratories, technical schools and technical support centres.
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Electrochemical Impedance Spectroscopy (EIS)
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Electrochemical impedance spectroscopy (EIS) is a method for the non-destructive characterisiation of thin layers, membranes, surfaces and films. Typically a small amplitude AC voltage (or current) signal is applied to a sample while the amplitude and phase relationship of the corresponding current (or voltage) signal is monitored.
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Impedance Analyzers
MTZ-35.
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An impedance analyzer with the features and specifications necessary for working on a the broad range of applications in the field of materials research.
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Impedance Analyzer
1260A
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The model 1260A Impedance/Gain-Phase Analyzer is - without doubt - the most powerful, accurate and flexible Frequency Response Analyzer available today. In daily use by leading researchers wherever measurement integrity and experimental reliability are of paramount importance, the 1260A’s solid reputation is frequently endorsed in published research papers in fields.
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Battery Impedance Tester
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Is an ideal tester for automotive, UPS maintenance and telecommunication applications.
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High Impedance Active Probes
28 AND 29
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Designed to serve the needs of integrated circuit engineers working in the most advanced high speed, submicron, MOS technology. These high frequency instruments include the attractive features of the Models 18C and 19 including full dc capability, negligible dc current drain, and extremely low input capacitance. In addition the frequency range of the Models 28 and 29 has been extended to a full 1 GHz.
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Impedance Stabilization Networks
ISN
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Com-Power ISN (Impedance Stabilization Network) are primarily used for RF telecom conducted emission testing per EN 55022, which is one of the EMC (Electromagnetic Compatibility) phenomenon tests.
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Audio Impedance Testers
1106 IM
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Standard Electric Works Co., Ltd
Large LCD : 68 × 34mm (2.677" × 1.338"). True measurement of speaker systems actural impedance at 1kHz. Three test ranges allow testing of home theater and commercial sound systems. Measures transformer impedances. Battery operation. Low battery indication. Data hold function. 0Ω adjustment.
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Impedance Analyzers
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Sciospec stands for Electrical Impedance at its Best. Electrical Impedance Spectroscopy has been our core technology ever since. In the past years we have developed a scalable and flexible technology plaform that allows for precise, customizable, yet cost-effective lab-bench impedance analyzers. Choose between our three standard instruments, add some powerful options and enjoy an impedance analyzer that perfectly fits for your application.
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Precision Impedance Analyzer (10Hz to 130MHz)
ST2851
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ST2851 series precision impedance analyzer is a new generation impedance test instrument by adopting the current international advanced automatic balance bridge principle. It is based on Windows10 operating system, which realizes a fully computerized operation interface, making the measurement more intelligent and easier.ST2851 series impedance analyzer surpasses the 120MHz frequency bottleneck of similar foreign instruments, and solves the defect that it can only be analyzed but cannot be tested independently. At the same time, it adopts two interfaces of single test and analysis to make the test easier.
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Impedance Analyzers
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A/D converted input signals undergo discrete Fourier transform (DFT) to calculate complex impedance values and obtain parameters and characteristics specific to the DUT, such as its capacitance, inductance and quality factor. Original NF algorithms are also applied to allow equivalent circuits made up of R, L and C along with the constants for those circuits to be estimated from the complex impedance spectrum obtained by sweeping the frequencies.
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Loop/Line Impedance Testers
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Shanghai Beha Electronics Co., Ltd.
*Built-in earth tester.*Built-in loop/psc tester. 0.03 - 2000Ω (software ctrl).*Built-in voltmeter.*Built-in wiring checker.*One push button smart control.
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Controlled impedance test system
CITS900s4
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CITS900s4 is the seventh generation of Impedance test system from polar, and typically the most popular model for customers who are new to impedance control. CITS900s4 provides both differential and single ended measurement capability along with 4 channels to provide flexible probe connection.
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Battery Impedance Tester
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TES Electrical Electronic Corp.
Test conditions without shutting down battery.Simultaneously measures battery resistance, Voltage, current, and temperature.Auto-hold and auto-data storage. Comparator Function.Rates conditions as pass, warning, or fail.
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5uH Line Impedance Stabilisation Network LISN - CISPR 25
TBOH01
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The TBOH01 5H LISN is a device required to setup conducted noise measurements of DC-powered devices. It is designed to be used for EMC pre-testing in the frequency range of 150kHz to 110 MHz.
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FC Impedance Meters
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designed for testing of the fuel cell with the small current (5 A or less), and not only the current-voltage characteristic test, the KFM2005 can easily measure for the impedance of a fuel cell using the AC impedance method, and the Cole-Cole plot. Using the measurement data of the Cole-cole plot, it is possible to calculate the circuit constant of the approximate equivalent circuit of the fuel cell. The built-in DC load (60W) is capable to operate from 0 V, and it can perform the test for the fuel cell up to 20V and 5A.
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Impedance Matching Pads
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Impedance matching pads from BroadWave eliminate impedance discontinuity (mismatches) without introducing reflection to the circuit. Custom units are available in a variety of impedance and connector types from DC to 4 GHz. BroadWave Technologies impedance matching pads preserve signal integrity by matching virtually any transmission line.
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Antenna Impedance Analyzer
TZ-900 AntennaSmith
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Analysis Parameters: SWR, Complex Impedance, R+jX, reflection coefficient, Smith Chart. 0.2 - 55 MHz• SWR
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Controlled Impedance Analyzers
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HYPERLABS Controlled Impedance Analyzers can be used with various probes and adapters to quickly and reliably characterize impedance on PCB test coupons. These Test Systems are designed to comply with IPC-2141A standards for PCB coupon testing, and can be customized to meet specific customer needs.
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Localized Electrochemical Impedance Spectroscopy
VS-LEIS
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The VersaSTAT 3F applies an AC voltage to the sample emerged in electrolyte. This "global" voltage generates AC current to flow at the electrode / electrolyte interface. A dual-element probe is positioned in solution close to the surface of the sample. The electrometer measures a differential voltage measure between the two measurement elements as a measure of local voltage-drop in solution. This voltage-drop exists in solution because of current flow from local reactions at the sample, the resistance of the electrolyte and the spatial separation of the dual measurement elements.
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Impedance Standards and Calibrators
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Impedance Calibrator is to replace countless single value RCL standards with one calibrator that can switch between the standards like a CD changer in your car. The calibrator contains stable and temperature independent resistance standards, partial capacitance standards and partial inductance standards, simulated by RC T-type passive network. Calibration values of both complex parameters of partial standards are displayed on large LCD screen in preselected pairs of parameters as well as voltage, current and frequency readouts from built-in test signal meter. OPEN and SHORT reference positions are available as well.
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Known impedance for use in loudspeaker measurements
Impedance Box
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An impedance box is necessary for measuring the impedance of a loudspeaker. Listen Inc.’s impedance box contains a 0.25Ω resistance. This value is suitable for most loudspeakers, but may be easily swapped out for a different value by the user if speakers with a particularly high or low impedance are being tested. It is available with either XLR or 1/4″ balanced connectors. Please specify type of connectors when ordering.
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High Impedance Active Probes
34A
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Engineered to meet the stringent demands of advanced high frequency circuit designers. This high impedance probe combines full DC capability, rise/fall times of 120 ps, and a nominal loading input impedance of 10 megohm shunted by 0.1 pf. Signal attenuation is 20:1 with a 50 ohm oscilloscope input.
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Impedance Monitors
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Single channel impedance monitorA flexible frequency generator/analyzerSupporting external load/potentiostat - TDI Dynaload RBL488 series & XBL series - WonATech WEL Load - Other 3rd parties potentiostat/galvanostat
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Battery Impedance Tester
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Weshine Electric Manufacturing Co., Ltd
The DC test method is adopted to simulate the actual use of the battery in a real and objective way, which can effectively eliminate the hidden dangers such as deficiency, deficiency and connection failure between batteries while measuring the internal resistance of the battery.
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Impedance Matching Pads
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These impedance matching pads are resistive networks that can be used to match 2 devices with different nominal impedances. The resistive network used in these impedance matching pads has a 5.7db theoritical insertion loss; true loss is 5.7db plus the normal other losses. common use is to connect 50 ohm sma's to 75 ohm f's. There are also 75 ohm versons of N's, BNC's, & SMA's.
