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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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Test Fixture, Shielding Effectiveness
EM-2108 | 1.5 GHz – 10 GHz
The EM-2108 is a standard test fixture for evaluation of the electromagnetic shielding effectiveness (SE) of planar materials. The fixture is a section of coaxial transmission line broken to allow the insertion of planar test materials. Although ASTM D4935-10 is currently limited to an upper frequency of 1.5 GHz, the EM-2108 meets and complies fully with both the impedance and SE requirements called out in ASTM test method D4935-10 up to 10 GHz. These results are shown in Figures 1 & 2. The measured data relates to the shielding effectiveness due to a plane wave (far field EM wave) from which near field values for magnetic and electric fields may be inferred.
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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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Balanced Measurements
The unbalanced interface of a VNA is not very well suited for measuring balanced circuits like antennas, transmission lines or chip impedances. In fact it is nearly impossible to get a decent calibration on a balanced 2-port measurement using coax cables.
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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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Silver Ball Matrix Sockets
SM Contact is a unique contact that has precise silver balls held together by a proprietary conductive formulation. These conductive columns (diameter optimized for 50 ohm impedance) are suspended in a non-conductive flexible elastomer substrate with a patented solid core for enhanced durability and reliable performance over time, temperature and cycles. This flexible substrate is very compliant and resilient and enables the conductive columns to revert back to original shape when the force is removed. Solutions are available for 0.25mm to 1.27mm LGA, BGA, QFN, CSP, POP, WLP and other packages. The silver ball matrix contact technology is also available with a protective plunger matrix (a gold plated copper cylinder) that sits on top of the conductive columns. This plunger matrix protects the conductive column from contamination from various solder ball interfaces. A quickly replaceable plunger matrix enables minimal downtime during final production test. The product family code for this line of sockets is SMP.
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RF Terminators
Typically placed at the end of a transmission line and is designed to match the cable's AC impedance.
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Digital Electrical Network Analyzer
1826 NA
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Measures Earth Resistance without the need for poles in the ground or external measuring wires.● Earth measurement uses the real earth current path and the current generated by the electric network, without the need for any disconnection.● The Earth Resistance displayed is exactly the earth resistance that the earth current will need to go through if an earth fault occurs. No need to add all the bonding points and connection paths resistances.● Displays voltage supply at the transformer (Line to Neutral), without loading the transformer. Displays voltage between Line (Phase) and Earth (Ground), without drawing any current.● Measures the impedance of the line itself so you can analyze and differentiate between the multiples paths of the wiring.● Measures the Neutral Impedance. Single one smart push button operation; ON, Test, Scroll trough results and menus.● Checks wiring integrity (LEDs).● Auto off/auto ranging (software ranging). ● Combined prospective short circuit current, loop, individual wire and Earth Tester.● Voltage test L-N and L-E.● Loop test for L-E and L-N and PSC.● Enables analysis of constituent components in L-E and L-N loops giving resistance of earth, neutral wire, live wire and transformer winding.● Display can be customized for large orders.
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300KHz Precision LCR Meter
Model 4300R
Aplab Precision LCR Meter Model 4300R is a new generation of impedance test equipment with high accuracy, wide measurement range and six digits resolution. Being featured with test frequency up to 300kHz, test voltage of 5mV ~ 2V, built-in -5V ~ 5V DC bias and -10V~10V DC voltage source output, it can meet all requirements for measuring components and materials and provide guarantees for production line quality assurance, incoming inspection and laboratory precision measurements. The Handler, RS232C and GPIB interfaces as well as improved command system provided by the instrument make it easier to build the test system.
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Transient Limiters
Transient limiter LIT-153A and LIT-930A protects a spectrum analyzer input from high-level transients from the line impedance stabilization networks during EMC conducted emissions testing. It has a combined frequency range of 9 kHz to 30 MHz. The built in high pass filter helps reduce 50/60 Hz line feed through. (see application notes)
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VXS 21 Slot
The Comtel VXS Backplane 21 slots match performance and cost-effectiveness by realising a fully optimised signal and power distribution environment. Design techniques ensure uniform impedance controlled signaling environment and ground guarding minimises line-to-line crosstalkThe VXS provides the high-speed switched serial performance of VITA 41, hybrid design includes VXS payload slots, VXS switch slots and conventional VME64x slots, The 21 slot VXS backplanes supports data rates well beyond 3.125Gb/s per link. As a dual-star design, it can be operated with two switch boards, allowing addressing of both link ports on payload cards.
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Line-impedance stabilisation network
NNB 21 set
The NNB 21 line impedance stabilization network is designed for measuring of grid bound interferences of a device under test according to the satndard CISPR 25/ISO 7637. It measures the RF interference, which couples into the vehicle electrical system. Measurements during the development in a frequency range from 100 kHz to 1GHz can be carried out.
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AC Power Source
AC power source 61500 series sets up the new standard for high performance AC power source. It equips with all powerful features such as power line disturbance (PLD) simulation, programmable output impedance, comprehensive measurement functions, wave-shape synthesis and regulation test software.
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CATx Surge Protector
SP-CAT5-6V
Protects sensors running on CATx unshielded twisted pair (UTP) cable against the effects of electrostatic discharge, faulty wiring and lightning. The use of two protectors on each end of the line will provide increased protection for each end against surges. Protected pins: (1,2) (3,6) (4,7) and (7,8) pass through. Impedance: 85 to 115 Ohms. Surge suppression: 22Vpeak @ 100A 10/1000µs. Maximum continuous voltage: 6Vpeak. Dimensions WxDxH: 1x3.6x0.9 in (25x91x23 mm). Regulatory approvals: GR 1089, NEC 800.100 and 830.100, ITU 703, UL94 V0 Flame Rated.
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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.
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General Inclinometers
Columbia Research Laboratories
Columbia's SI-701 Series of Inclinometers are electronic tilt sensors based on Force Balance Accelerometer technology. They produce high level low impedance output proportional to the sine of the tilt angle. Model SI-701B is a low cost general purpose sensor that can be up-graded with the addition of the Columbia "HP" torquer system (SI-701BI) for greater accuracy and ruggedness. A bi-axial version of both units (SI-702B) is also available. The Model SI-701BI is designed with an output circuit made for 4-20mA data transmission systems for industrial applications. The model SI-701FND is a fluid dampened premium performance inclinometer designed to produce accurate tilt data in extreme shock and vibration environments. The latest addition in the line is Model SI-701WPBI, a waterproof (to 150 feet) inclinometer which operates from a +15 volt supply with 4-20mA output. A single power supply powers both the sensor and the 4-20mA line driver.
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Performance Board For LSI Tester
Place inner layer GND plane all over. Impedance control of signal line and crosstalk prevention, etc. contribute to improvement of characteristics in various ways.
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Special - LISN
Impedance stabilization network which can be used to measure disturbance voltages of PLC (power line communication).
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Coaxial Probes
Smiths Interconnect offers the industry's most extensive line of high reliability coaxial probes. Our coaxial probes provide a low noise, controlled impedance signal path with reliable and easy connect/disconnect options.
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Calibration
RF Test Equipment
We calibrate following types of RF test equipment:EMF test systems (frequency selective)EMF test systems (broadband)Field strength transfer standards (e.g. RefRad)Line Impedance Stabilisation Network (LISN)Cable, attenuator, couplerAntennaField Probe
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Overhead Line & Cable Impedance Test Sets
T&R Test Equipment Overhead Line & Cable Impedance Test Sets
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Multifunction Tester
EASYTEST
EASYTEST carries out tests on electric systems in compliance with IEC/EN 61557-1 and therefore measurements of continuity of the protection cable, insulation resistance (with calculation of PI and DAR), overall earth resistance, RCDs type A and AC tripping time and current, line / fault impedance with calculation of prospective short circuit / fault current, phase sequence and conformity.
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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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Synchro to DC Sine / Cosine Converters
SD
Computer Conversions Corporation
This unique series of Synchro to DC Converters makes use of advanced digital circuitry techniques to accomplish high speed conversion with extreme accuracy. Transformer isolation as well as balanced line-to-line input impedance is provided for superior and trouble-free system performance, regardless of the input synchro used.
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Impedance Matching Pads
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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Butt Set
MT-8001
Recognized as the new industry standard, the MT-8001 butt set provides superior quality at an affordable price. With its high impedance monitor for data safe operation, technicians can clip onto a line in Monitor mode without disrupting existing traffic. Prokit's unsurpassed protection standards and durability assure the butt set will keep working even in the toughest environments. New weatherproofing provides enhanced resistance to severe weather conditions.Features
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Fault Locating
Schweitzer Engineering Laboratories, Inc.
The built-in fault-locating methods in SEL devices allow you to quickly identify faults, dispatch crews for repairs, and restore service faster. Traveling-wave fault-locating technology calculates the locations of temporary and permanent faults by measuring the arrival times of the naturally occurring traveling waves caused by a transmission line fault. Accurately detecting these waves requires ultra-high-resolution monitoring, and locating is accurate to within one tower span (±300 m). Impedance-based fault-locating technology calculates fault locations by detecting changes in line impedance as a result of a fault. Impedance-based locating is reliable and accurate to about 2 percent of a line’s total length.
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Wafer Probe Loadboards/PIB
DTS has a full line of standard PIBs for all major tester platforms. Custom PIB designs can accommodate any test head, prober and manipulator configuration, including probe card changers, overhead direct dock setups and cable interfaces. DTS wafer test loadboards are compatible with a variety of pogo pin interface towers. All PIBs are constructed with impedance control, precision matched line lengths, full power and ground planes and both analog and digital resources to provide high quality signal integrity directly to the device.
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Voltage Probes
In addition to EMI measurement with LISNs (Line Impedance Stabilisation Networks, Artificial Mains Networks), Probes are used for Terminal or Line voltage measurement.
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Power modules
G.R.A.S. Sound & Vibration A/S
It provides polarization voltage for the transducer, ensuring that the microphone gets the charging voltage it needs.It provides supply voltage for the microphone preamplifier. The preamplifier acts as a unity gain impedance converter. It provides a certain amount of line drive capability by providing a low output impedance and output current, making it possible to transmit the signal from the transducer to the Power Module without significant degradation.A power module can provide amplification or attenuation to the signal, thus making it possible to fine tune the measurement chain to the signals being measured and the hardware being used.Selectable filters make it possible to exclude unwanted noise from the measurement, e.g. wind induced noise from outdoor measurements.Overload detection makes it possible to validate the measurements and is a useful tool in monitoring setups.When a Power Module with gain is used, you can use longer cables because of the power module's ability to deliver current.A Power module introduces electrical isolation
