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Speaker Impedance
measure of resistance a speaker puts on an amplifier.
See Also: Speaker, Microspeaker, Loudspeaker, SPL
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Pathfinder Locating System
The STICK™
Built with Pathfinder SAF Technology™ at its core, the Stick offers RYCOM’s most ophisticated technology in an economical package. Pathfinder SAF Technology™ is the heart of our premium locators, now RYCOM is applying this proven technology throughout the entire product line. From crowded easements, to long runs of pipe, to the most demanding of locating environments, users can depend on The Stick. Dependability is not only driven by the internal technology, but The Stick is built to last with an aluminum housing and sealed against weather. The ruggedly designed and well balanced receiver includes an LCD screen providing relative and actual signal strength, as well as a speaker for variable audio pitch. A peaking signal response allows the user to minimize interference and maintain the locate on the target conductor. The Stick cable and pipe locator offers multiple active frequencies — from 50Hz to 82kHz — ensuring flexibility to match the needs of the most complicated locating environments. Transmitter functions include transmitter induction, coupler induction and direct connection. Whether the locate is measured in feet or miles, with automatic impedance matching from 5 ohm to 25,000 ohms and 3 watts of output power, The Stick will meet the challenge. Rycom Instruments®, Inc. locators are designed and manufactured to make utility locating as accurate as you need and as simple as you want.
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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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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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True Dual-Channel Analysis on iOS
IOScope
With IOScope, measure loudspeaker impedance, frequency response, and sensitivity. Measure a room impulse response. Tune a large sound reinforcement system, time-align a set of surround sound speakers, or optimize your home stereo. Determine the actual cutoff frequencies of your latest speaker crossover circuit, or teach your students the fundamentals of Fourier analysis of dynamic systems.
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Amplifier, Switch and Test Box
CLIOQC Model V
The QCBOX Model 5 is a non-conventional unit designed to fulfil actual and future needs of an electro-acoustical analyzer like the CLIO system. It is USB linked to a PC and can be configured, with dedicated software controls, to assist frequency response and impedance measurements or to perform DC measurements. Using it for frequency response measurements acts as 50W power amplifier to drive the speaker or network under test while routing one-of-four inputs to the analyzer as well the current sensing output. The four inputs are able to provide a phantom power supply both for Audiomatica or general purpose microphones (0-24 V range, software controlled). Impedance measurements can be done either switching the D.U.T.’s load across the analyzer’s input or using a dedicated output, ISENSE, thus allowing impedance measurements in constant voltage mode as well voice coil current distortion analysis. An internal ADC measures the DC current into the voice coil. Thanks to an internal software controlled voltage generator the speaker can be driven with a superimposed DC voltage (±20V), allowing for measurements of large signal parameters. Two ADC converters with a ±2.5 V and ±5 V are available at inputs 3 and 4 to measure the displacement with a laser sensor or any other DC signal. A dedicated digital input handles an external foot pedal switch (or TTL signal) to be connected and triggers QC operations. A 6 bit output – 5 bit input TTL digital port is available to interface the QCBOX and driving software with external hardware (like turntables for example).The QCBOX Model 5 finds use both in laboratory for R&D applications and in production lines setups.
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Audio Multimeter
AMM-1
The purpose of this tool is to enable the user to: Measure True Amplifier Power output into any load reactive or resistive Measure Common DC voltages Measure DC voltage drops during quick transients on cable runs or battery / charging systems Measure Impedance of speakers at any power or frequency from 20Hz - 1kHz (box rise) Measure Phase Difference between Voltage and Current into reactive loads (Power Factor) Find Tuning Frequency of subwoofer enclosures Tune subwoofer enclosures for maximum power transfer Measure AC Volts (amplifier output) Measure AC Amps (amplifier output)
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Audio Analyzer
FLEXUS FX100
The FX100 is a unique professional audio analyzer that adapts to your application. The instrument offers comprehensive measurements including Passed/Failed tests in under 1 second. You may customize the system for two or four parallel channel operation, speaker impedance testing and digital audio measurements. Switcher modules provide additional outputs and inputs.
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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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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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Analog & Digital Audio Analyzer
FX100
The FX100 is a unique professional audio analyzer that adapts to your application. The instrument offers comprehensive measurements including Passed/Failed tests in under 1 second. You may customize the system for two or four parallel channel operation, speaker impedance testing and digital audio measurements. Switcher modules provide additional outputs and inputs.
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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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Impedance Meter, Audio, 200Ω, 2KΩ and 20KΩ scales
72-6948
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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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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Speaker & Signal Analyzer
Specifications*frequency available for models:1-300/450/600MHz *frequency sweep mode:full sweep, narrow sweep,spot frequnecy
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Impedance meters
Electronic components meters for circuit verification in laboratories, technical schools and technical support centres.
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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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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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Speakers, Sirens, And Strobes
It is a speaker mounted and it features two sealed reed tamper switches, one on the Back plate and one on the Front Cover. The stainless steel naturally reflects the mounting surface and blends easily with any residential or commercial building.
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Impedance Analyzers
MTZ-35.
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 Analysis
S96041B
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 Analyzer 10MHz-20Hz
IA1021
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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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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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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High Impedance Active Probes
12C
A high speed, high input impedance active probe for measuring the internal node voltage of integrated circuits. The input is 1 megohm shunted by 0.1 pf and the rise/fall times are 0.8 ns. This instrument has full dc capability and can be used with any oscilloscope. The Model 12C was specially designed so that when used in conjunction with a high input impedance oscilloscope, signal attenuation is 10:1 and with a 50 Ohm input, signal attenuation is 20:1.
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Impedance Analyzer
MFIA
The Zurich Instruments MFIA is a digital impedance analyzer and precision LCR meter that sets the new standard for impedance measurements in the frequency range from DC to 5 MHz. The MFIA provides 0.05% basic accuracy and a measurement range spanning from 1 m to 10 G. The instrument has a high measurement repeatability and a small temperature drift. With the LabOne user interface the MFIA offers a number of long-awaited innovations for the impedance and LCR measurement available without the need of any software installation.
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Nodal Impedance Analyser
QT-Hi1
Qmax Test Technologies Pvt. Ltd.
QT-Hi1 is an innovative Nodal Impedance Analyzer, which uses the industry’s proven V-I trace techniques of learn and compare of nodal impedances which are represented as VI Curves. It uses innovative Auto Best Curve fit technique an intelligent software alogorithm which enables automatic selection of the best fit value of Voltage, Source Impedance and Frequency of the stimulus waveform. The compact size with re-chargeable battery makes it an ideal companion for on-field applications. The wide 8” touch screen graphical display makes this tool more valuable in test and repair industry at all times.
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FC Impedance Meters
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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High Impedance Voltmeter
Model 800
Trek developed the Model 800 Infinitron(TM) for voltage measurement applications that demand virtually infinite loading impedance levels which are far beyond the reach of currently available high impedance voltmeter instruments.
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Vector Impedance Analyser
TE3000
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.
The MTZ-35 is a high-frequency impedance analyzer which is the key element of several fully integrated solutions for the electrical characterization of materials . These solutions comprise a MTZ-35 impedance analyzer, a Temperature Control Unit, a sample holder and MT-Lab software.The MTZ-35 is also offered as a standalone instrument for use with other systems/accessories.
