Pink Noise
1) reference signal for audio test. 2) sleep enhancement aid.
See Also: Noise, White Noise, RF Noise, Noise Sources
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Environmental Noise Monitors
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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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Product
Permanent Outdoor Noise Monitor
NMS043
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For permanent and semi-permanent outdoor noise monitoring where remote access is required, the NMS043 is an excellent choice. When you need online access to noise data for monitoring construction noise, nuisance noises, transportation noise or other unwanted noises, the NMS043 will reliably do the job.
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Low Phase Noise Amplifiers
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Low Phase Noise amplifiers are critical for many applications requiring high signal integrity. This is especially relevant in instrumentation, defense, and telecommunication applications where low phase noise amplifiers are becoming increasingly important as the oscillators improve. Phase noise is described as the close-in noise to the carrier that can often appear as jitter on a clock signal. Analog Devices offers a large portfolio of low phase noise amplifiers to meet a variety of requirements in the LO network, receiver, as well as in the transmitter. Our portfolio supports a wide range of power levels and frequencies to provide the right solution for the given application.
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Surface-Mount Noise Sources
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Mercury’s family of surface-mount noise sources provides exceptional performance in a compact and easy to integrate package. These products are ideal for applications such built-in test and dithering circuits where the system requirements drive a need for compact, surface mount technology.
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Product
Turnkey Solution for Unattended Noise Monitoring
NoiseScout
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NoiseScout provides a comprehensive but easy-to-use 24/7 noise monitoring solution. Noise levels are recorded on-site by the XL2 Sound Level Meter and are available online for monitoring and download. NoiseScout is aimed at both short term noise assessments and long term monitoring applications. During acquisition, automated email alerts allow noise issues to be addressed before a non-compliance condition arises. NoiseScout displays the noise levels measured by the XL2 Sound Level Meter live in your web browser. The measurement data recorded out in the field is presented online in charts and dashboards. Multiple noise level meters can be monitored simultaneously within the map view, thus providing localized geographic visualization for all noise levels at a glance. Identified users can access all their projects, control their monitors or create basic view modes, allowing stakeholders to oversee their noise level data.
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Product
Low Noise Super Wide Band Amplifiers
WBA Series
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WBA series low noise amplifiers have the octave bandwidth from MHz to GHz. With super low noise figure and exceptional low VSWR, WBA series LNA achieves exceptional gain flatness accross octave or multi-octave bandwidth.
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Noise Dosimeter
doseBadge5
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The doseBadge5 is the next generation doseBadge noise dosimeter from Cirrus. It provides all of the unique features of the original doseBadge such as no controls, cables or displays with a range of new functions and features allowing it to be used for compliance with any occupational noise standard. Wireless communication to the dBLink App (for Android and iOS) or the doseBadge5 Wand allows the instrument to be configured and controlled without user intervention. Measurements can be scheduled to start, pause and stop automatically with the timer functions allowing the doseBadge5 to be deployed quickly and easily.
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Product
High-Current, Ultra-Low Noise Filter, 21 V / 500 MA, 10 Ω
N1298A
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The N1298A Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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Product
Two Channel Phase and Amplitude Noise Analyzer
DCNTS -190
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The DCNTS is a two channel Phase and Amplitude noise analyzer. Its dual demodulator architecture allows the system to use cross-correlation to cancel its internal noise and limitation; it is like comparing the outputs of 2 systems and only display the similarities while rejecting differences. Its main extension is the Residual Noise measurement front-end which includes all necessary hardware to automatically measure residual noise on 2-ports devices either in RF frequencies or microwave. It could be a frequency multiplier or divider, an amplifier or any other phase coherent input to output device.
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Product
Noise Receiver Modules And Noise Switching Modules
MT7553 Series
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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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Product
SCB-100A Noise Rejecting, Shielded I/O Connector Block
785024-01
Terminal Block
100-Pin Female SCSI to 100-Pin Female Screw Terminal, DIN Rail, Wall, Pane Terminal. Block The SCB-100A is a shielded I/O connector block for interfacing I/O signals to NI data acquisition devices with 100-pin connectors. Combined with shielded cables, the SCB-100A provides rugged and protected signal connectivity. It has a mechanical enclosure that features a magnetic removable lid and pinout diagrams. It also includes pane, wall, and DIN Rail mount options.
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Noise Suppression Products / EMI Suppression Filters / TVS Diodes (ESD Protection Devices)
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Murata noise suppression products include compact EMI suppression filters that efficiently eliminate noise, L Cancel Transformers (LCTs) that greatly suppress noise in high-frequency bands by reducing the ESL generated inside capacitors and in boards, and TVS Diodes that guard semiconductor devices against electrostatic discharge from external sources. Murata supplies products that support a variety of approaches to suppressing noise.
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Noise Figure Analyzer, Multi-touch, 10 MHz to 3.6 GHz
N8973B
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The N8973B 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 N8973B.
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Small Device Noise Emission Test System
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The Small Device Noise Emission Test System from VIacoustics is a turnkey solution for the measurement of noise emissions of small devices typically used in computers, consumer electronics, appliances and automobiles. The system includes all hardware and software necessary (see the components tab) for the determinations of sound power levels (1/3 octave band and A-weighted), emission sound pressure levels (normalized 1/3 OB, A-weighted and high resolution FFT) and *ISO 532B loudness. The system is designed to be operated by a technician for production level testing or to be used by an engineer in the product development process.
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Noise and Vibration Tester
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SKF Condition Monitoring Center
High tech analysis and measurement such as frequency analysis (FFT) and further advanced analysis pinpoints faults. Spectral masks help to optimize the bearing performance in the particular customer application.
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Low Phase Noise Frequency Synthesizer
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Corech’s low phase noise frequency synthesizer series generates precise and stable frequency signals across a wide frequency range, available in SPI serial interface. These cost competitive, rugged and compact module are the ideal choice for RF & Microwave systems such as communication systems, test and measurement equipment, radar systems etc.
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Product
SCB-100 Noise Rejecting, Shielded I/O Connector Block
776990-01
Terminal Block
100-Pin Female SCSI to 100-Pin Female Screw Terminal, Desktop Mount Terminal Block - The SCB-100 is a shielded I/O connector block for interfacing I/O signals to NI data acquisition devices with 100-pin connectors. Combined with the shielded cables, the SCB-100 provides rugged low-noise signal termination.
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Product
Noise Source, 10 MHz to 18 GHz, nominal ENR 15 dB
346B
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The Keysight 346B 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 346B's high ENR, low SWR, and variety of connectors make it a general-purpose noise source. Add special option H01 for high ENR (21 dB typical) to measure high noise figure devices, or option H42 for measuring Direct Broadcast Satellite (DBS) low noise block converters.
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Product
Noise Source, 10 MHz to 18 GHz, nominal ENR 6 dB
346A
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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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Product
Low Noise Filter Adapter
PX0107A
Adapter Module
The PX0107A converts Dsub25 outputs to five SMB outputs with the low noise filtering capability down to 25 μVrms (20 MHz). It supports the Keysight M9614/15A.
