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Noise Sources
create signal disturbances for the purpose of noise instrument calibration.
See Also: Pink Noise, Noise Generators
- Applied Instruments, Inc.
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RF Noise Source
NS-3
The NS-3 Broadband RF Noise Generator provides an extremely flat AWGN (Additive White Gaussian Noise) signal from 5 to 2150 MHz. The output level adjusts in 0.1 dB steps over a 30 dB range.The bench-top configuration is standard and an optional two unit rack enclosure is available. The RS232 or USB remote control interface simplifies its use in automated test and factory ATE environments. The NS-3's combination of range, versatility and value make it the ideal general purpose broad-spectrum signal source for bench and ATE applications, including C/N, BER, MER, PER testing and rain fade simulation.
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Single Frequency CW 532 NM Laser up to 18W
EQUINOX
Equinox is a single frequency, 532 nm continuous wave laser designed for a range of scientific applications including pumping any Ti:Sapphire laser systems. It is engineered to meet the needs of experimentalists requiring high-performance systems with an emphasis on reliability, stability and ease of use. The laser incorporates pump diodes within the central unit and is fully automated with hands-free operation and control via ethernet, webpage and TCP/IP remote interface. This completely sealed system is inherently stable with low noise levels <0.05 % RMS and ultra-stable output powers with ±0.5 % stability. Equinox has options of high output power up to 18 W. Other major applications include mixing source, pump source for dye lasers and frequency doublers, optical tweezers, and biomedical imaging.
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60 GHz Noise Figure Test Set
The Noisecom 60 GHz Noise Figure test set has 4 separate systems designed to perform Y-factor noise figure measurements using a high performance Spectrum Analyzer or a dedicated receiver. Each system contains a highly stable V-band noise source, isolator(s), optional waveguide to coaxial transitions and an optional pre-amplifier for use with a spectrum analyzer. The two standard calibration tables have ENR data points at 1 GHz intervals.* System ENR is measured before the DUT connector and at the final output stage allowing for pre-test calibration of the system.
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DRO / PDRO
Panda Microwave customized up to 40GHz low phase noise (DRO or PDRO) , Phase Locked Dielectric Resonator Oscillators (PDRO) take advantage of the small size, low phase-noise and high efficiency, including PDRO and DRO. Phase Locked Dielectric Resonator Oscillators (PDRO) are used widely in today’s electronic warfare, radar and communication systems. They find use both Commercial and Military communication systems where demanding performance, high reliability and cost are critical. The phase locked oscillators utilize ceramic coaxial resonator and ceramic dielectric resonator fundamental frequency sources with low phase noise performance. The design of the Phase Locked Oscillators is based on sampling phase detector technology, which provides the comparison frequency at the same frequency as the fundamental frequency output.
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Full Band Noise Figure and Gain Test Extenders
STG-06-S1
Full band noise figure and gain test extenders are offered to extend noise and gain measuring capabilities up to higher millimeterwave frequency ranges. These extenders are designed to interface with noise and gain test systems that have an input IF of 10 MHz to 1.6 GHz, such as the industry standard Keysight 8970A/B, N8975A and Maury MT 2075B. The noise figure and gain test extenders include a high-performance, solid-state noise source (STZ series) and a full waveguide down converter (STC series), which consists of a Faraday isolator (STF series), full band mixer (SFB series), frequency multiplier, and IF amplifier. A frequency source with an output signal in the frequency range of 10 to 20 GHz is required as a local oscillator for the down converter. The noise source is automatically powered on and off by the noise figure meter.
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Noise Receiver Modules And Noise Switching Modules
MT7553 Series
Noise Parameters are the non-50Ω extensions of Noise Figure, and are an important modeling and model validation tool to understand how a device-undertest’s performance changes as a function of source impedance. Noise Parameter measurements are typically performedusing a Vector Network Analyzer (VNA) to measure the S-Parameters of the DUT, and a Noise Analyzer (either Noise Figure Analyzer NFA or Spectrum Analyzer SA) to measure the noise power of the DUT. Noise parameters are calculated from a combination of knownsource impedances, S-parameters and noise powers.
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Programmable DC Power Supply
62000L Series
The Chroma 62000L Series Programmable DC power supplies have low noise linear performance and fast transient response. The units have many unique functions that are targeted for overall automated test system integration, automotive power electronics MCU/ECU, power semiconductors, wireless communications, etc. The 62000L Series is a high quality yet cost effective programmable DC Source, designed to meet the stringent requirements of the next generation of power electronics. The GPIB and USB control interfaces come standard with the 62000L Series, no additional purchase required. The 62000L Series can be easily remote controlled via either of these two interfaces. The 62000L weighs less than 2.5 kg, and its case measures 214.6W * 88.6H * 280D mm. Its light weight and compact size makes it easy to handle and stack safely.。
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10-Ch. 0… 5V 400mA Isolated
YAVAP955
The YAV board AP955 contents 10 CAN Bus programmable bipolar Isolated precision and low noise 0 to 5VDC voltage sources up to 400mA output, with Tripaddle VPC connector.
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Acoustic Analysis
Noise is increasingly the subject of new regulations for the protection of human health and safety as well as for improving the environment in general. As well as sound levels, the perceived sound quality of products from washing machines to vehicles is often an important part of the customer buying decision so must be considered during product development. m+p Analyzer for noise and vibration measurement and analysis provides a full range of capability for these applications. Real-time fractional octave filters satisfy all acoustic applications from simple sound pressure, sound power for equipment legislative requirements, intensity mapping to isolate sources to sound quality metrics for product refinement.
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Signal Generators
ZTX-Series
RPG's Signal Generator Extenders allow high performance frequency extension of microwave sources into the THz range. The available models cover a Frequency Range from 50 GHz up to 1.1 THz. These modules combine high test-port power with low phase noise to offer exceptional performance. Contact RPG to discuss Signal Generator Extenders configurations that will gain the best performance for your application.
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Microwave / RF Synthesizers, Test & Measurement
Berkeley Nucleonics Corporation
The 825-M is an agile ultra-low phase noise RF signal source from 8 kHz to 20 GHz RF Synthesizer. It is available in single-channel or multichannel configurations. A single channel 825-M is packaged in a compact enclosure, or can be ordered with a touch-screen display, or a 1U 19" rackmountable version. The multi-channel version (2, 3, or 4 channels) is packaged in a 19” 1U rackmount enclosure.
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Fourier Transform Optical Spectrum Analyzer, 350 - 1100 nm
OSA201C
Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.
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Partial Discharge Expert Diagnostic and Location System
PDExpert
Power Monitoring and Diagnostic Technology Ltd.
The PDExpert is PMDT's third level of Partial Discharge (PD) Expert Diagnostic and Location System. It is a powerful, portable, multi-channel system of impeccable design used to analyze and pinpoint PD signals coming from a power asset within centimeters while the power system is energized. The system consists of UHF, AE, HFCT and ultrasonic sensors, one advanced UHF/PD signal processing unit, one oscilloscope, filters and other accessories.The system employs ultra-high speed data acquisition and advanced digital signal processing technologies, compares the UHF, AE and HFCT signals of different frequency ranges to determine if it is PD or noise, and locates the source in power assets accurately by utilizing Acoustic-Electromagnetic Combination Location Technique, time Difference of Signals' Arrivals (TDOA), and 3D Positioning Technology.
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Sound Power Measurement
Dewesoft sound power measurement solution merges the best of both worlds: widely established sound power measurements with familiar, distinctive user interface and industry unmatched adaptability. Rate and compare different noise sources with ease and exactness while simultaneously monitor any number of additional parameters.
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Ultra-Low Noise Filter, 42 V / 105 MA, 50 Ω
N1298B
The N1298 Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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High-Speed Precision SMU (100 FA, 60 V, 15 MSa/s)
PZ2121A
The Keysight PZ2121A is a high-speed precision source / measure unit (SMU) featuring best-in-industry narrow-pulse width, fast Digitizer Mode, and seamless current measurement ranging. It enables narrow-pulsed measurements and fast dynamic measurements with a wide dynamic range for a wide range of emerging applications such as vertical-cavity surface-emitting laser (VCSEL) optical devices, integrated circuit (IC) testing. In addition, its low measurement noise performance enables measurements with shorter aperture times, and its seamless current measurement ranging function enables a wide dynamic range and eliminates range change time, which improves test throughput.
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High-Density Precision SMU (10 PA, 30 V)
PZ2131A
The Keysight PZ2131A is a high-channel density precision source / measure unit (SMU) having 5 channels per module and saving space for a wide range of applications requiring numerous precision power supplies. The narrow-pulse function and fast Digitizer Mode allow the PZ2131A to expand the conventional static DC measurements to emerging dynamic measurements. Its seamless current measurement ranging function eliminates the time it takes to change the range and expands the dynamic range to cover multiple measurement ranges, which reduces test duration. These capabilities make the PZ2131A suitable for applications that require numerous precision power supplies, such as semiconductor reliability tests and integrated circuit (IC) tests. The Keysight PX0107A low noise filter adapter lowers its voltage source noise level, which makes the PZ2131A suitable for noise-sensitive applications such as quantum computing as well.
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Microwave Downconverter, 3 GHz to 26.5 or 110 GHz
E5053A
The E5053A microwave downconverter is designed to operate with the E5052A/B signal source analyzer (SSA). When configured with the E5053A microwave downconverter, the E5052A/B SSA offers exceptional phase noise sensitivity up to 26.5 GHz. Additionally, combining a pair of 11970 series harmonic mixers offers the phase noise measurement up to 110 GHz.
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Acoustics
When it comes to selecting a microphone for product tests—whether for sound power, sound quality, or noise source location—there's no need to compromise to sacrifice quality or performance for affordability.
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Isolated 16-Bit Analog Output Board
MSXB 076
The Microstar Laboratories Isolated 16-Bit Analog Output Board, part number MSXB 076, provides isolated analog outputs for Data Acquisition Processor (DAP) systems. Use these boards to eliminate ground currents – a potential source of noise in your measurement and control signals – as well as to eliminate phase errors from analog outputs in your application.
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Ancillaries - Radiated
EMC emissions can be at very low signal levels and pre-amplifiers can help to improve S/N ratio. The low level of emission signals can make them difficult to identify in noisy environments. RF filters are designed to attenuate the major sources of noise, thus making the task of measurement easier.
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SSA-X Signal Source Analyzer, 1 MHz To 8 GHz
E5055A
The Keysight E5055A SSA-X signal source analyzer provides precise and accurate measurements in one box. Comprehensive and versatile, this solution evaluates the phase noise and other relevant parameters for RF signals up to 8 GHz. Flexible measurement settings and a modern user interface improve measurement efficiency, while application support through software expands measurement coverage to meet new requirements.
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Automated Fibre Loss Test Set
LTS-1500
The LTS-1500 is a small, rugged automated fiber optic loss test set that characterises singlemode fiber links at wavelengths of 1310, 1490 and 1550 nm. It is comprised of a sensitive InGaAs based optical power meter calibrated at six wavelengths with better than -75 dBm noise level plus a stabilised laser light source with up to three selectable wavelengths.
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Low Noise Op Amplifiers (≤ 10nV/√Hz)
Analog Devices’ portfolio of low noise (≤ 10nV/√Hz) op amps includes many amps with the lowest noise performance in the industry. These high speed, low distortion (1 nV or less) op amps enable better signal fidelity in the most demanding conditions, allowing system designers to achieve the lowest total system noise performance in applications with high source impedances. We feature a considerable variety of these amps with wide supply ranges and low power.
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6.5 Digit Low Noise Power Source
B2960 Series
The Keysight B2960 Series 6.5-digit low noise power source are a new generation of power sources offering precision, wide bipolar output ranges, and other innovative features such as graphing capability and arbitrary waveform generation capability, enabling test and evaluation that conventional power sources cannot do.
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Tapping Machine
STM-1
Tapping Machine Type STM-1 is intended for measurements of acoustic insulation of ceiling in buildings. The unit fulfils Annex A of ISO 140-6/7. These parts of the standard require a tapping machine as a sound source for impact noise measurements. Type STM-1 is available with an optional remote control.
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Low Phase Noise Reference Source
96270A
The 96270A RF Reference Source is the simplest, most accurate and cost-effective single instrument for calibrating spectrum analyzers and RF power sensors and more, up to 27 GHz.
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Power Sensor and SNS Noise Source Cable (1.5m / 5 feet)
11730A
The Keysight 11730 series power sensor cables are used with the 8480 and E-series power sensors (except the E9320 family of peak and average sensors). These cables are designed to reduce RFI effects on low power readings with an improved shielding design in the cable itself. Cables may be ordered individually or in pairs in any combination desired for single and dual-channel measurements.
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Sound Intensity Measurement
Sound Intensity MeasurementA perfect tool for sound intensity level measurement and noise source determination brought to an entirely new level by Dewesoft. The solution brings a simple and intuitive measurement process while offering the utmost precision and industry unmatched adaptability.
