Speaker Impedance
measure of resistance a speaker puts on an amplifier.
See Also: Speaker, Microspeaker, Loudspeaker, SPL
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Speaker Component Checker
Cab Driver
Whirlwind Music Distributors, Inc.
The CAB DRIVER is a test device for checking the operation of the speaker components within enclosures. A pink noise signal source is sent through pushbutton selectors to an assortment of speaker connectors, including Speakon NL8 and NL4, 1/4" TS and banana jacks. Speaker/ Polarity/ Impedance/ Pink Noise Generator
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Impedance Analyzer, 20 Hz to 10/20/30/50/120 MHz
E4990A
The E4990A Impedance Analyzer has a frequency range of 20 Hz to 120 MHz. The E4990A provides an industry best 0.045% (typical) basic accuracy over a wide impedance range, with a 40 V built-in DC bias source. The equivalent circuit analysis function supports seven different multi-parameter models and helps you to simulate your own equivalent parameter values of components.
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Impedance Analyzer, 1MHz to 500 MHz/1 GHz/3 GHz
E4991B
The E4991B Impedance Analyzer has a frequency range of 1 MHz to 3 GHz. The E4991B provides 0.65% basic accuracy over a wide impedance range with a 40 V built-in DC bias source (Option 001). The equivalent circuit analysis function supports seven different multi-parameter models and helps you to simulate your own equivalent parameter values of components.
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Impedance Spectroscopy
NuVant EZware-EIS Software Package
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 meters
Electronic components meters for circuit verification in laboratories, technical schools and technical support centres.
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Impedance Analyzer
TH2839A
Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 20Hz-5MHz, max. resolution 1mHz ■ Test Accuracy: 0.05% ■ Test Speed: Max.7.7ms ■ Auto-balance bridge technology, 4-terminal pair ■ High stability and consistency: up to 15 test ranges
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High Impedance Probes
Everbeing offers GGB’s high impedance active probe for failure analysis of your devices. The high impedance with low capacitive design allows measurements of internal nodes without loading the device. For more information, please visit http://www.ggb.com.Everbeing offers GGB’s high impedance active probe for failure analysis of your devices. The high impedance with low capacitive design allows measurements of internal nodes without loading the device. For more information, please visit http://www.ggb.com.
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Impedance Stabilization Network
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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Antenna Impedance Analyzer
TZ-900 AntennaSmith
Analysis Parameters: SWR, Complex Impedance, R+jX, reflection coefficient, Smith Chart. 0.2 - 55 MHz • SWR
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Impedance Matching Pads
Surface mount and coaxial 50 Ohm / 75 Ohm impedance matching pads for CATV systems, broadband networks, test setups and more!
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Impedance Measurement
CITS880s
Finer geometries and thinner copper can present a challenge for fabricators measuring impedance on leading edge PCBs. The CITS880s answers that challenge with the introduction of Launch Point Extrapolation (LPE). LPE extrapolates the TDR response back to a point close to the start of the transmission line effectively allowing to users more accurately to measure the instantaneous or incident impedance of the line.
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Impedance Analyzers
HTF-1100.
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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Localized Electrochemical Impedance Spectroscopy
VS-LEIS
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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High Impedance Differential Relay
High impedance protection schemes are widely used for the protection of BUS bars, generators, motors & power transformers. BUS bar protection schemes utilizing electromechanical high impedance differential relays are often used due to their simplicity, reliability & comparatively low cost.
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Audio Impedance Testers
1106 IM
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 Meter
ZM-100
Monacor International GmbH & Co.
Impedance meter for measuring the impedance (Z) of individual loudspeakers and loudspeaker lines.
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Audio Impedance Testers
2706 IM
Standard Electric Works Co., Ltd
True measurement of speaker systems actual impedance at 1kHz.. Three test ranges (20Ω / 200Ω / 2000Ω) allow testing of home theater and commercial sound systems. Measures transformer impedances. Battery operated. Low battery indication. Data hold function. Timer function for continuous hands free operation. The timer can last about 3-5 minutes when users press. TEST ON/OFF button.
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Speakers
Selection of ceiling mount, surface mount, and pendant speakers designed to meet a wide variety of needs.
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Potentiostat / Galvanostat / Impedance Analyzer
PalmSens4
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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Line Impedance
KIT
The Line impedance kit is composed of two modules, STLG and STSG. The kit is meant to be used with STS 5000, STS 4000 and eKAM in order to perform Line Impedance test.
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Battery Impedance Tester
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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Known impedance for use in loudspeaker measurements
Impedance Box
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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iSimulator Impedance Simulator
Z1000
Measurements International Ltd.
With the release of the commercial Z1000 iSimulator, the process for calibration of LCR meters has been taken to a new level. The Z1000 covers the full calibration of LCR meters over simulated impedances from 100 Hz to 20 kHz while eliminating the need for external standards and providing a much simpler, easier-to-use method of LCR meter calibration.
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High Impedance Active Probes
28 AND 29
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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Audio Impedance Testers
1506 IM
Standard Electric Works Co., Ltd
● High quality Taut Band movement.● Battery operated.● Timer function for hands free use.● Battery indicator.● The tester measure with a frequency of 1kHz.● Measure speaker’s impedance.● Measure speaker lines (connected to load).● Help to calculate and check audio power systems.● Ideal for public address installation and maintenance.● Measure transformer impedances.
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Audio Impedance Testers
1107 IM
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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Precision Impedance Analyzer
TH2851-130
Changzhou Tonghui Electronic Co., Ltd.
■ Test frequency: 10Hz-130MHz ■ High precision: using automatic balance bridge technology, four-terminal pair test configuration ■ High stability and consistency ■ High speed: the fastest test speed up to 5ms
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Impedance Analyzer 1MHz-20Hz
IA1000
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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Manual Tuners / Impedance Tuners
Maury manual tuners are based on precision slide screw technology that utilizes broadband slab line transmission structure and passive probes to create impedances for devices. The probes are designed to be very close to onequarter wavelength in the linear dimension at the mid-band of each range. Since each tuner has two probes, this results in improved matching characteristics for each unit. Another key feature of this series of tuners is the inclusion of a LCD position readout of the carriage position on those units operating below 18 GHz. Higher frequency tuners utilize a micrometer carriage drive. The positional repeatability and high matching range of these tuners make them ideally suited for use as a variable impedance source in applications like device characterization. Such measurements depend upon the ability of the tuner to establish impedances out near the edge of the Smith chart and to reproduce the electrical characteristics as a function of mechanical position. The tuners in this series are also easy to use due to the nearly independent electrical results of the mechanical motions. The depth of penetration of the probe into the transmission line determines the magnitude of the reflection, while the position of the probe along the line determines the phase. While there is some interaction, the effects are almost independent of each other. https://www.maurymw.com/images/mw-rf/mst982e35.jpg
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Precision Impedance Analyzer (20Hz to 10MHz)
ST2839
ST2839 series precision impedance analyzer is a new generation impedance test instrument by adopting the current international advanced automatic balance bridge principle. Its basic accuracy of 0.05%, the fastest test speed of 5.6ms, the frequency range of 20Hz-10MHz, and the impedance test range of up to 1GΩ can meet the testing requirements of components and materials, especially for low-loss (D) capacitors and high-quality Measurement of Factor (Q) Inductors. The four-terminal pair port configuration method can effectively eliminate the influence of the electromagnetic coupling of the test line, and expand the lower limit of the low-impedance test capability ten times lower than that of the conventional five-terminal configuration instrument.
