Speaker Impedance
measure of resistance a speaker puts on an amplifier.
See Also: Speaker, Microspeaker, Loudspeaker, SPL
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Product
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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RF Impedance Transformers
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Are designed and optimized to best deliver power into an impedance of 50 Ohms.
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High Impedance Transformers
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Osborne high impedance transformers are used to step-up, step-down and isolate voltages in single phase and three phase circuits. A properly designed high impedance transformer can be used an an equivalent to an isolation transformer connected in series with an inductor. The high impedance characteristic may be employed as a current limiting feature in both the primary and secondary circuity.
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High Impedance Differential Clock Divider
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Alliance Support Partners, Inc.
he ASP-DCD-00 board is a high impedance input clock divider circuit. It is designed to provide minimum load to a clock source for frequency measurement. It accept single ended (Unbalanced) or differential (Balanced) signals with amplitudes as little as 100mV rms; it divides the input signal frequency from 2 to 256 times depending on shunt jumper selections on J3. The board requires 5VDC 500mA power source to operate. The output is capable of driving 5V TTL logic levels.
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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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Step & Touch & Earth Impedance
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The kit applyed with STS 5000, STS 4000 or eKAM, allows to perform the following types of test: soil resistivity, ground grid resistance, step and touch tests and overhead lines zero sequence and mutual coupling coefficients
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LISN Line Impedance Stabilisation Networks / AMN Artificial Mains Network
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A LISN Line Impedance Stabilization Networks / AMN Artificial Mains Network: *supplies the neccessary mains voltage (AC or DC) and current for the Equipment under Test (EuT).*couples interference voltage generated by the EuT and supplies it to the receiver.*provides well defined RF-impedance to the Equipment under Test (EuT)*keeps away unwanted disturbance coming from mains (filter)*protects the mains from unwanted disturbance voltage generated by the EuT
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Product
Potentiostat / Galvanostat / Impedance Analyzer
PalmSens4
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PalmSens4, is a USB and battery powered Potentiostat, Galvanostat, and optional a Frequency Response Analyser (FRA) for Electrochemical Impedance Spectroscopy (EIS). The PalmSens4 has a large potential range (-5V to 5V or -10V to 10V) and current range (100 pA to 10 mA) with a high resolution and low noise. This instrument is a complete laboratory instrument but its compact and rugged design makes it also ideal for field work.
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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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Product
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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Low Impedance Voltage Tester
K-60
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K-60 KNOPP VOLTAGE TESTER for AC and DC with polarity indicator. Double safety indication is by solenoid and by neon lamp. Knopp’s K-60 Low Impedance Voltage Tester (Cat. 14460) offers portability and ease of use with full protection. These exceptionally versatile and useful tools are backed by a reputation for quality in the design and manufacturing of electrical test equipment.
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Impedance Analyzers
HTF-1100.
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A laboratory furnace used specifically for the electrical characterization of materials and also for heat treatment between ambient temperature and 1100 °C.
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Impedance Spectroscopy
NuVant EZware-EIS Software Package
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The NuVant EZware-EIS software package activates Electrochemical Impedance Spectroscopy on the EZstat-Pro, Powerstat-05 and -20 potentiostat/galvanostats. EZware-EIS exports the impedance data to a file format to accommodate free third party EIS analysis software. EZware-EIS is a user-friendly interface that allows selection of the proper scanning parameters, collect the impedance spectra, display data in Nyquist and/or Bode plots and export data in the proper data format for use in EIS analysis software.
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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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Impedance Analysis
S96041B
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Make impedance analysis measurements of Surface Mount Device (SMD) components on the E5080B vector network analyzer with 16198A-010 10 GHz SMD test fixture.
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Impedance Stabilization Network
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Beijing KeHuan Century EMC Technology Co,.LTD
KH8158 is a device for measuring the common mode interference voltage of unshielded twisted pair cables. Cable testing according to CISPR 16-1-2. The equipment under test (EuT) and auxiliary equipment (AE) are directly connected to the corresponding ports. The port adopts RJ-45 socket (the distribution conforms to T568A/B.) This equipment is divided into three specifications: CAT3, CAT5, and CAT6, and the corresponding equipment is selected according to the cable model.
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Precision Impedance Meter
1689
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The GenRad 1689 Precision Impedance Meter gives you the best performance for your most demanding applications whether they be production test, incoming inspection, component design and evaluation, process monitoring or dielectric measurement. It is a versatile, full function microprocessor-based passive component tester that's available in a rack mountable, (1689M) model.
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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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Audio Generator & Impedance Meter
MR-PRO/MR2
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The Minirator MR-PRO provides a full set of analog audio signals including sine wave, pink noise, white noise, delay test signal, polarity test signal, stepped sweep and continuous sine sweep. Further, a set of wav-files, useful for system optimization, is stored in the internal flash memory. Add your own personal favorites to this set.
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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 Meter, Audio, 200Ω, 2KΩ and 20KΩ scales
72-6948
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Active device is essential for reliable installation of background music and paging systems in residences, offices buildings and public areas. Avoid costly service calls and amplifier damage by verifying actual speaker system impedance prior to operation. Unlike conventional volt/ohm meters, which measure DC resistance, this unit utilizes an internal 1KHz oscillator to measure true impedance. Accurately measure speaker lines that utilize impedance matching volume controls, switchers, transformers and passive crossovers. Because this unit accurately measures up to 20Kohm, it may also be utilized with 25V, 50V, 70V, and 100V speaker line transformers in commercial installations.
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Vector Impedance Analyser
TE3000
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The TE3000 Vector Impedance Analyser is a portable desktop instrument designed for high accuracy impedance measurement. The probe style construction and small output signal make it ideal for "in circuit" impedance characterisation of small signal devices without the risk of damage to the device under test. The TE3000 comes factory calibrated to the tip of the probe with optional custom calibration. Turn it on, set the frequency, take a measurement, and display the results in any format.
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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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Short Circuit Loop Impedance Meter
AMZC-304
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Short circuit loop impedance measurement in networks with nominal voltage: 220/380V, 230/400V, 240/415V, with frequency 45…65Hz ; Short circuit loop impedance measurement with 15mA current, without triggering RCD. ; Detection of the replacement L and N in the socket and automatic swap in the meter
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Battery Impedance Meter
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Operation is fast and simple. Just press the spring-loaded probes onto the two poles of the battery. After 1.5 seconds, the unit beeps (indicating good contact) and displays the battery voltage and either the number of siemens or milliohms, depending on the knob setting. The display continues to show these numbers after the probes are removed; it resets only when the probes are pressed onto the next battery. The impedance and voltage of any battery between 1.2 and 60 volts can be read. Because of the wide range of voltages, even single low-voltage cells, such as NiMH, can be measured. The manufacturers of some batteries specify impedance in milliohms while other specify in siemens (one divided by the resistance in ohms). This meter will display both types of impedance for any given battery. Accuracy is +/- 2% of the value.
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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 Analyzer 10MHz-20Hz
IA1021
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Feature Specifications: Dual test mode: Analyzer(frequency sweep) and LCR(single frequency).Measurement frequency: 20Hz to 10MHz, 6 digitsFrequency resolution: 0.001% in all frequency rangeFrequency accuracy: 0.01%.DC bias(program): -10V ~ +10V, 0.005V resolution, accuracy 0.5%.Measurement basic accuracy: Impedance +-0.2%, phase: +-0.1°.Display Range: Z: 0.0000Ω-99.999MΩ.
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Impedance Analyzers
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The E4990A Impedance Analyzer with a frequency range of 20 Hz to 120 MHz provides an industry best 0.045% (typ.) basic accuracy over a wide impedance range, with a 40 V built-in DC bias source.
