Phase
the difference between two features of a waveform, measured in any of multiple manners (distance, time, angle, wavelength, etc.)
See Also: Phasing, Phase Standards, Phase Meters, Phase Angle, 3 Phase, Time
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Microcomputer Three-phase Relay Test Set
Weshine Electric Manufacturing Co., Ltd
Given the diverse functional requirements of the grid’s protection system, testing capabilities require a new level of sophisticated test hardware and software with which to analyse the entire protection system’s (or individual protection component’s) operation in "real life" situations.
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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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Koheras Single-Frequency Fiber Lasers
Koheras single-frequency lasers are longitudinally single-mode and offer extremely low phase- and intensity noise levels. Available in the Erbium or Ytterbium wavelength ranges and with frequency conversion to many other bands.Reliability is our highest priority and the all-fiber DFB design ensures robust and reliable operation for thousands of hours.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, together with the measurement of tap changer motor current which detects motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer connected in a YN configuration. This can significantly speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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MIMO Tester
Qosmotec Software Solutions GmbH
The QPER MIMO Tester is a handover tester einriched with phase shifter that helps engineers to make mobile networks fit for modern standards like LTE or HSPA+.
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Digital Step Phase Shifter
RF Lambda’s digital step phase shifters are designed to actively change the phase of an RF signal using digital TTL control signals. They are available in a variety of frequencies, phase shift ranges, and step sizes. Hermetically sealed options are available upon request.
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ECU Simulator
PT-LabCar
PT-LABCAR is an open and scalable Hardware-in-the-Loop (HiL) system. It is designed for open- and closed-loop testing of ECUs specifically in the powertrain application domain. The system can be used to run automated regression tests for the release of software variants as well as for the validation of control and diagnostic functions in early phases of ECU development.
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DPSK Demodulator
Optical differential-phase shift keying (DPSK) provides a desired modulation format that offers high receiver sensitivity, high tolerance to major nonlinear effects in high-speed transmissions, and high tolerance to coherent crosstalk. In DPSK, data information is carried by the optical phase difference between adjacent bits. For direct detection of DPSK signal (by conventional intensity detectors), a DPSK demodulator is needed to convert the phase-coded signal into an intensity-coded signal.
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Test Equipment
Southern Photonics designed and manufactured all the test equipment currently being manufactured by Coherent Solutions, as well as equipment for non-telecoms applications. This includes FBG strain interrogators, optical pulse phase analysers, OSNR meters, optical power meters, optical spectrum analysers, optical gas sensors… you get the idea. All test equipment we build is robust and easy to use. The picture shows some of what we can do – anything from prototype benchtop test gear (as in the combination ASE source and laser combiner on top of the stack) to field test equipment (the portable fast OSA on the bottom).
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3 GHz, 4 Channel Programmable Delay Line
QPADL3
The QPADL3 is a programmable delay line instrument with 4 independent channels designed for adjusting the time delay or phase of radio, microwave or even digital signals with bandwidths from DC to 3 GHz.
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Three-Phase Relay Test Equipment
AK-10
The new AK-10 three-phase relay test equipment from Amperis features AC and DC Voltage Source ; AC Current Source ; AC/DC Auxiliary Power Source ; 8 possible configurations.
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Universal Three-phase Protective Relay Test Set
Mentor-12
The Mentor 12 is the most advanced three-phase relay test set available for type and field testing of electromechanical and digital protections of any kind, in traditional or IEC-61850 based substations.
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17 To 19 GHz QPSK Modulator
CCM19001
The CCM19001 is a Differential Drive Digital QPSK (Quadrature Phase Shift Keying) modulator operating across the 17.0 to 19.0 GHz frequency range. The modulator utilizes differential drive digital inputs (180º apart) to drive both of the bi-phase modulators (mixers) integrated into the assembly. The modulator is a combination of a matched pair bi-phase modulators, which are in quadrature (90º) to each other. It is modulated by switching polarities of the DC voltage controls in 4 different logic states ("0,0", "0,1", "1,0" & "1,1") for 4 phase states. The QPSK modulator provides constant amplitude, 90º vector: 0 (ref.), 90º, 180º, 270º and operates across the -55º to 85º C temperature range.
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Signal Generator
8002
25C, hysteresis eliminated. To within 10 MHz of the final frequency. Normal switching mode, SSB phase noise will be degraded in the fast switching mode.
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Phase-Locked Crystal Oscillator
PLXO Series 0.9” x 0.9” x 0.25”
*Compact Surface Mount Package *Excellent Phase Noise and Stability *Configurable for any application
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Programmable Multifrequency Clock Synthesizer - 6U VPX
Model 5891
- Simultaneous synthesis of up to 10 different clocks- 16 SMC clock outputs- Typical phase noise: -105 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 to 100 MHz- Eight programmable VCXOs with 32-bit tuning resolution- Output clocks of 1, 2, 4, 8, or 16 submultiples of VCXO base frequencies- Output clock frequencies between 50 and 700 MHz- Control and status over the VPX backplane
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LCR Meter, Hand Held, 100 kHz, 2 kH, 20000 µF, 0.2 Gohm
72-10465
The 72-10465 from Tenma is a LCR meter in orange and grey colour. It features an easy to read dual LCD (40mm x 63mm) display measurement of 19999/1999 (main/auxiliary). It also has series and parallel measurement modes which can be used to select quality factor, loss factor, phase location angle and equivalent resistance of measure articles. Intelligent detection and five different test frequencies enable accurate readings for all sizes of capacitors and inductors. The user can also access the stored data on a PC with the included USB connection and interface software. The compact size and case make this unit far more portable than a benchtop meter.
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DC to 2 GHz Power Splitter with BNC connector
11667L
The Keysight 11667L is a 50 ohm two-resistor type power splitter with BNC connectors. It is used with the E5061B network analyzer for power distribution network applications, such as DC-DC converter output impedance measurements with shunt-thru method (100 Hz to 10 MHz). It provides excellent amplitude (<0.2 dB) and phase tracking (+/-3), ensures highly accurate power splitting and low SWR minimizes measurement uncertainty.
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Audio Analyzer / Studio Aid
MiniSonic MS10
The MiniSonic MS1/MS10 Audio Analyser/Studio Aid is a complete, hand held, two-channel analogue audio test set that measures frequency, frequency response, phase, level, noise, distortion, crosstalk, speed and path latency (delay).As well as being a quality tester it's a precision line-up tool, a stereo PPM, a balanced-unbalanced convertor (both ways),a stereo mic preamp, a headphone amp, and a level convertor.
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NI-9242, 250 Vrms L-N, 400 Vrms L-L, 50 kS/s/ch, 24-Bit, 3-Phase C Series Voltage Input Module
783107-01
250 Vrms L-N, 400 Vrms L-L, 50 kS/s/ch, 24-Bit, 3-Phase C Series Voltage Input Module - The NI‑9242 performs single-ended analog input. The wide measurement range makes it ideal for high-voltage measurement applications such as phasor measurements, power metering, power quality monitoring, standard potential transformers, and motor test. You can also perform transient and harmonic analysis with high-speed simultaneous sampling. The NI‑9242 offers three channels, so you can connect single‑ or three‑phase measurement configurations such as WYE and delta.
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Modules - Modules, Bridge
Vishay’s bridge modules feature voltage ratings from 50 V to 1600 V in single-phase and three phase configurations and in a wide range of package options.
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Test Setup For Air Conditioner
SCR ELEKTRONIKS have developed TESTING SET UP FOR SINGLE PHASE / THREE PHASE MOTOR for carrying out Performance Test, Earth Contact Resistance Test, High Voltage Test, Megger Test and Leakage Current Test. It consists of Voltmeters, Ammeters and Wattmeters for observing the values of different parameters. OK / NOT OK lamps are also provided to display the results of Earth Contact Resistance Test, HV test, Megger Test, Leakage Current Test. All tests are provided with tripping cut off concept.
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Zero Phase Current Transformer
MZL-30
MULTI MEASURING INSTRUMENTS Co., Ltd.
Split-core type for measuring zero phase current
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Three Phase Relay Testing
Our comprehensive and intuitive relay software speeds up testing times with a vast library of pre-defined test regimes or manual operation.
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Universal Power Line Carrier
UPLC-ll
As with our previous UPLC power-line carrier design, UPLC-II requires no hardware modifications for most required configurations. UPLC-II is frequency programmable across the entire power-line carrier spectrum (30 to 500 kHz) without changing any hardware components. UPLC-II can be software configured either as an ON/OFF or frequency-shift keyed (FSK) power-line carrier unit without changing any hardware components. This flexibility makes each UPLC-II universally suited for any directional comparison blocking, permissive, phase comparison or transfer trip protective relay application.
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Analogue ELCB Tester
1810 EL
Standard Electric Works Co., Ltd
● Taut Band movement.● Simple operation.● Wiring check.● Robust.● Can be used on 2 wires L-E (ELCB/RCCB/GFCI tester).● Can be used on 3 wires L-E-N (with wiring check).● No battery required.● Sense automatically 50 or 60 Hz.● Current injected in phase with the voltage.● Other voltage optional (110V).
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Sequence / Rotation Indicators
Phase Sequence and Motor Rotation meter detects live phase and sequence orientation of three phase power sources and industrial equipment conductors to ensure proper installation. Motor rotation function identifies rotational direction of industrial equipment such as motors, compressors and generators. Non-Contact Motor Rotation feature determines rotation of running single-phase and three-phase motors without the use of leads.
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Universal Timer/Counter for VMEbus
VME385
The VME385 Universal/Timer Controller VMEbus board is an ideal solution for automated test and measurement applications. The VME385 features eight timer/counter inputs, all inputs have an coaxial connector for the input range of +/- 10 V and high-voltage pins for the input range of +/- 300 V. The coupling of the inputs is either AC or DC. The VME385 provides 6 measurement functions: frequency, high-time, low-time, period, counter and phase measurements.
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In-Line Spectroscopic Ellipsometer for Web Coater and Roll to Roll Systems
UVISEL
The UVISEL Spectroscopic Phase Modulated Ellipsometer is a turn-key thin film metrology instrument for in-line measurement of thin film thickness and optical properties. It features rapid measurement capability with data acquired every 50 ms for powerful control of thin film uniformity across the entire web.The design of the UVISEL ellipsometric heads allows simple integration into roll-to-roll systems, while the software provides advanced communication capabilities suited to roll-to-roll production.
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Potential Transformer Test Set
Supreme Instrument Laboratories
The two voltage vectors, one from Standard Potential Transformer and the other from the Potential Transformer under test energies the high permeability magnetic core and then associated windings try to annual the residual magnetism which occurs due to error. The differential vectors will be proportional to phase error and ratio error magnitudes.
