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Noise Sources
create signal disturbances for the purpose of noise instrument calibration.
See Also: Pink Noise, Noise Generators
- Pickering Interfaces Inc.
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PXI Source Switching Module
40-618A-001
The 40-618A PXI Source Switching Module consists of 12 separate 4-channel multiplexers and 44 uncommitted SPST relay contacts in a single width PXI module.
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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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Planar Doped Barrier Detectors
KRYTAR Planar Doped Barrier Detectors are specifically designed for use in today's high-performance microwave instrumentation and systems. KRYTAR detectors are designed for such applications as power measurements, analyzing radar performance, leveling pulsed signal sources, AM noise measurements, system monitoring and pulsed RF measurements in ultra-broadband and mm-Wave applications.
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Power Line Meter
The Line EMI Meter measures electromagnetic interference in a single-phase AC power line. It plugs into a wall outlet (mains socket) and requires no battery. It immediately displays total line noise in millivolts (range 1999 mV, resolution 1 mV) in the frequency range 10 KHz 10 MHz (the frequency limits at which sensitivity is of the maximum sensitivity). A speaker plays the sound of the EMI, amplitude demodulated, in order to identify the EMI source (such as an AM or shortwave radio station vs. a motor vs. an electric arc).
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Trace-Level UV Fluorescence SO2 Analyzer
Model T100U
Teledyne Advanced Pollution Instrumentation
The Model T100U Trace-level SO2 analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network. It uses the proven UV fluorescence principle, and is designed to allow ultra-sensitive SO2 measurements while still meeting the requirements for use as a US EPA compliance analyzer.The analyzer uses both the light and dark phases of the pulsed UV light source to continuously detect and correct for electronic noise, giving exceptionally stable and sensitive performance. A separate UV detector allows the instrument to continuously correct for variations in lamp intensity. Exceptional stability is achieved with the use of an optical shutter to compensate for PMT drift, and a reference detector to correct for changes in UV lamp intensity. A hydrocarbon "kicker" and advanced optical design combine to prevent inaccuracies due to interferents.
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Gas Filter Correlation Carbon Monoxide Analyzer
Model T300
The Model T300 measures low ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 14 meters. The energy loss through the sample cell is compared with the span reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing extreme sensitivity. All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information, is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T300 comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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Environmental Noise Monitors
Noise is one of the most complained about aspects of the environment, as not only does it have the potential to affect quality of life, it can also be difficult to monitor and therefore control. This type of noise is generally called environmental noise. There are many man-made sources of environmental noise, such as wind turbines, industrial sites, roads and traffic etc. If you are looking for equipment to measure noise in the workplace, look at sound level meters.
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Soldering Station
SM-898D
*Using micro-processor PID program control technology, precise dual digital display hot air gun and the stability of the actual temperature of the soldering iron, fast automatic temperature compensation feature further enhanced temperatures.*The amount of wind, air flow, temperature soldering iron are adjustable.*The air gun holder is a magnetron (or light control), holding the handle when the system will automatically enter the working mode; handle is placed on the shelf when the system enters standby mode automatically.(One more than the 898D Auto Sleep off function)*System with automatic cold wind function, can prolong the life of the heating element.*This product uses "brushless fan" as a source of air, reduce noise, improve work efficiency
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Battery Chargers
DC Battery ChargersStep-Up & Step-Down DC Source Chargers and Equalizers These units provide up to 600 watts to charge a 12V or 24 V battery systems (1 or 2 banks) from a 12, 24, 32 or 36 volt source. The single-board design incorporates state-of-the-art switch mode technology for unmatched efficiency and ultra-quiet operation. Multiple stages of filtering reduce radiated or conducted noise to very low levels. All Series are capable of charging up to two independent banks of batteries.
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Precision Calibrated Noise Sources
ELVA-1's calibrated noise source ISSN-XX series delivers a uniform level of noise power spectral density within the whole waveguide frequency range. Sources are available in eight waveguide bands covering 26.4-170 GHz.
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Noise Figure Analyzer, Multi-touch, 10 MHz to 40 GHz
N8976B
The N8976B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8976B.
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10 MHz to 55 GHz Noise Sources
CNS346 Series
The Spanawave CNS346 Series is designed for precision noise figure measurement applications. The superior VSWR characteristics reduce multiple reflections of the test signals and significantly increase the measurement accuracy of most noise figure set-ups. The CNS346 Series noise sources have broadband coverage and extremely good temperature and voltage stability, for the finest noise figure meter-compatible laboratory standards. Outputs of 6, 15.5 and 22 dB ENR are available, allowing the units to accurately measure noise figures up to 20 ,30 and 36 dB respectively.
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Fourier Transform Optical Spectrum Analyzer, 600 - 1700 nm
OSA202C
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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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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Noise Sources
This power amplifier ensures that you get the maximum sound pressure level out of the Norsonic range of speakers.
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Transformer Preamplifier
SR554
Stanford Research Systems, Inc.
The SR554 is a low-noise, transformer-coupled preamplifier optimized for source impedances between 0.05 Ω and 1 kΩ. With an input noise of only 0.1 nV/√Hz, the SR554 can be used in a wide range of low-noise applications.
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Low Noise Pre-Amplifiers
Low Noise Pre-Amplifier and companion external low noise amplifier (LNA) are used to amplify low level microwave signals. The Pre-Amplifier contains an AC/DC power supply, internal low noise amplifier, and a bias tee to source a DC bias voltage on the RF input connector.To overcome cable loss between the test antenna and the Pre-Amplifier assembly, a remote low noise amplifier (LNA) is mounted directly onto the 10 GHz antenna. A bias tee inside the Pre-Amplifier chassis powers the remote LNA through the coax cable interconnecting the pre-amplifier and the 10 GHz test antenna.
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Video Transmitter
Model: DS-5210
The S-Band Video Transmitter is a synthesized microwave signal source providing low phase noise with a high level signal output. The unit can be set to any frequency within the band of design via a USB or RS-232/422/485 computer command. The oscillator is phase locked to an internal TCXO reference. The oscillator pro-vides a stable low noise source for video transmission.
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Directional Source
BAS003
The BAS003 Source is designed to generate homogeneous sound fields using random noise in compliance with the following standards: Building acoustics (insertion loss, acoustic absorption area, etc: ISO 140-3, ASTM E90, ISO 140-5, ASTM E966). The BAS003 is typically used to generate a noise in a free-field for the evaluation of the transmission loss index of a façade. The available high-efficiency power amplifier, BAS002, is light and can be remotely controlled for easy use in the field.
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Hi-Q Laser RIN Analyzer
OE4001
The OEwaves’ HI-Q® OE4001 Optical Test Measurement System (TMS) offers a fully automated measurement of ultra-low RIN (Relative Intensity Noise) CW laser sources.
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Precision Current Sources
HighFinesse Precision Current Sources have been developed for experiments and quantum technologies in the areas of cold-atom and solid state physics. The linearly regulated BCS (Bipolar Current Source) and UCS (Unipolar Current Source) series deliver highly stable, low noise source currents for high precision magnetic field control. The current output is floating or is on a used defined potential. Ultrafast response to control signals and trigger functions, clear grounding, connection and signal isolation schemes make the integration of the current sources into complex experimental systems easy.
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Noise Sources
WGNS
The system allows the user to extend the frequency range of the NFA to allow for accurate noise figure measurements to be performed on a device operating in the 26.5 – 170GHz range on wafer as well as in benchtop applications. Farran offers the WGNS series of noise sources to be used in conjunction with the FBC down converters for use as frequency extenders for noise figure measurement test system.
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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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Noise Source Test Set, 10 MHz to 26.5 GHz
N2002A
The N2002A noise source test set is a low cost, stand-alone instrument that, as part of a calibration system, enables fast, repeatable calibrations with minimal levels of uncertainty.
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160W DC Programable Power Supply
*Source effect: CV≤0.01%+3mV(mA)*Load effect: CV≤0.01%+3mV(I≤3A) CC≤0.2%+3mA(I≤3A) CV≤0.02%+5mV(I>3A) CC≤0.2%+5mA(I>3A)*Ripple and noise: CV≤1.0mVrms(I≤3A) CC≤3mArms(I≤3A) CV≤2.0mVrms(I>3A) CC≤6mArms(I>3A) *Protection Type: Overcurrent Protection (OCP) Overvoltage Protection (OVP)* Display accuracy: Voltage indication accuracy: ± (0.5% + 2 words)
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Noise Source, 10 MHz to 18 GHz, nominal ENR 6 dB
346A
The Keysight 346A noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 18 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty; reflections of test signals. The very small change in reflection coefficient (<0.01) from ON to OFF is designed especially for accurate characterization of input-impedance-sensitive devices (like GaAsFETs and many UHF amplifiers).
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High-Density Precision SMU (100 PA, 30 V)
PZ2130A
The Keysight PZ2130A is a high-channel density precision source / measure unit (SMU) with 5 channels per module that saves space at a low cost per channel for a wide range of applications requiring numerous precision power supplies. 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 PZ2130A 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 PZ2130A suitable for noise sensitive applications such as quantum computing as well.
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RF And Microwave Signal Generation And Analysis
The need for microwave test and measurement technology is even more urgent than the need for microwave equipment itself. Therefore, Shengbo Technology is relying on its own research and development capabilities to strive to become one of the comprehensive microwave test and measurement equipment suppliers. We provide a wide range of RF microwave test products, including a good-quality full-band broadband up-down converter . You can provide 2GHz real-time bandwidth signal up-down conversion function in the frequency range of 0.1 ~ 40 + GHz. With our channel simulator , we Became the first company in the world to provide channel analog solutions in such a wide range of broadband signals. At the same time, we are also an innovativesupplier of noise sources and multi-channel microwave signal sources in the industry.
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20 GHz Signal Source
VCO Series
The SC5510A and SC5511A are VCO-based, synthesized signal sources with very low phase noise and an amplitude control of 0.01 dB throughout its -30 dBm to +15 dBm output power range. By utilizing a unique multiple phase-locked loop architecture, phase spurs are kept below -70 dBc across the entire tuning range, even at 1 Hz step resolution. Download the data sheet to see how the impressive features and specifications of these modules make them stand out when compared to other small modular synthesizers. These 20 GHz signal sources include an additional, independent RF2 channel with a tunable frequency range from 100 MHz to 3 GHz and a tuning resolution of 25 MHz. The extra channel makes the modules suitable for either single-stage RF conversion systems or dual-stage image suppression up/down converter systems. Both modules make great general-purpose laboratory signal sources where demanding low phase noise and signal purity are required. They are both ideal choices as an integrated clock source for fast DAC and ADC applications, especially those that require variable sampling rates. Full implementation instructions, GUI, driver software, and example code are provided with each module.
