Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Low-Noise Filter, 210 V / 3 A
N1298C
The N1298 Series power source accessories are a collection of low noise filters for the Keysight B2960 Series precision source / measure units (SMUs).
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Low Phase Noise Amplifier
RF Lambda’s lower phase noise amplifier offerings include special power supply conditioning and utilize technology to reduce the phase noise addition from amplifying the signal. Hermetically sealed options are available upon request.
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Ultra Low Noise Preamp
J2180A
The J2180A low noise preamplifier provides a fixed, AC coupled 20dB gain while converting a 1 MOhm input impedance to a 50 Ohm output impedance. With a 3dB bandwidth of 0.1Hz to 100MHz, the preamplifier improves the sensitivity of oscilloscopes, network analyzers and spectrum analyzers while reducing the effective noise floor and spurious response. The preamplifier can also serve as a low frequency DC blocker for a spectrum analyzer or you can use it to connect a high input impedance oscilloscope probe to 50 Ohm equipment.
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Multi-Channel Automotive Noise Finder
7633A
Peaceful Thriving Enterprise Co Ltd
Multi-Channel automotive noise finder is a portable equipment to diagnose the defect of the vehicle. When the generator is running, it can detect the impact and vibration due to the defect and failure of bearing, gear, valve, crank, cylinder, gear box, and vehicle body…etc. With this equipment, the repairer can clearly locate which part of the machine cause the noise and how serious is it; even though the repairer operates the equipment in a very noisy environment.
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Noise Figure Measurements With Vector Correction
S95029B
The S95029B noise figure application enables high-accuracy noise figure and noise-power measurements of amplifiers, frequency converters, and mixers by using the Keysight vector-source-correction technique. Using a source-impedance tuner to remove the effects of imperfect system-source match, this technique produces higher accuracy results than Y-factor method and other cold-source implementations--especially for in-fixture, on-wafer, and automated-test environments.
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Particle Impact Noise Detector
BW-LPD-D4000
FREQUENCY: SINE WAVE 27Hz TO 265HzACCELERATION: 0 TO 20G PEAKSHAKER: 100 FORCE LBS 3/4" IN STROKE 75 IN PER/SEC VELOCITYAMPLIFIER: 250 WATTS MINIMUMD.U.T. WEIGHT: 300 GRAMS PRACTICAL LIMIT @ 20G
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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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Low Noise Current Preamplifier
SR570
Stanford Research Systems, Inc.
The SR570 is a low-noise current preamplifier capable of current gains as large as 1 pA/V. High gain and bandwidth, low noise, and many convenient features make the SR570 ideal for a variety of photonic, low temperature and other measurements.
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Noise Dosimeters
Spark Family
Spark® series dosimeters are compact, affordable and tamper-proof personal Noise Dosimeter that measures the following to applicable IEC and ANSI standards:*Noise Exposure: Multiple Dose; Projected Dose; Time Weighted Average; (all with 4 user selectable combinations of Exchange Rate, Threshold, Criterion Level and Criterion Time); Sound Exposure Level*Sound Levels:; Leq; Lmax; Lmin; Lpeak/Luwpk, SEL and more*Time and number of events above Ceiling Level (115 dB) and Peak Level (140dB)
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Broadband Calibrated Noise Sources
Fairview Microwave’s calibrated noise sources cover frequency bands from 10 KHz to 18 GHz. Their performance specifications include output ENR levels ranging from 15 dB to 30 dB and typical VSWR levels as low as 1.25:1. Depending on the model, calibrated frequency points are at 10 MHz, 100 MHz, 1000 MHz, 2000 MHz and 1 GHz steps. The temperature coefficient of these noise sources is < 0.01 dB/°C and noise output variation is < 0.1 dB/%V.
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High Voltage Linear Power Supplies Bipolar 4-quadrant, Analog/Digital/Local Control, Ultra Low Ripple/Noise
Series BOP-HV
The Kepco Model BOP 500DM and BOP 1000DM are high voltage power sources, up to 500V or 1000V, respectively. These combine the capabilities of fast programmable power supplies with a Class A output stage, which can respond bidirectionally from zero. The BOP-HV can be operated in either a "voltage stabilizing" or "current stabilizing" operating mode (selectable by a front panel switch). These power supplies offer ultra low noise and ultra low ripple at the output and are MIL-STD-461 compliant.
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Noise Dosimeter
ASV5910-2
Hangzhou Aihua Instruments Co., Ltd.
*Attractivedesign, mini—sized and weighs only 85g*Modulardesign, cable—free and dual channels*Complywith IEC61672, IEC61252 and ANSI S1.25*Rechargeable lithium polymer battery*Softwarepackage, downloads to PC*Varietymounting methods
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Low Noise Amplifiers
Electronic component that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio (SNR).
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Acoustical Random "Noise" Generator
ARNG-2000
Eliminate and Defeat otherwise undetectable distance surveillance devices such as Microwave, Laser and Boom Microphones
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Low Noise AC Amplifier
MA-164A
LOW NOISE AC AMPLIFIERS. Battery powered, rechargeable. Low distortion. Upper and lower bandpass limit selection switcher. 10dB step gain switch
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Noise Dose Meters
Here you will find a full range with an industrial standard noise dose meter to suit every requirement. With the portable noise dose meter you can carry out measurements quickly to gain control of a situation or to set the device to take timed measurements. The noise dose meter is important for all industries, especially by using it as a mobile device which is able to assess office stress levels or street noise levels.Often problems arise from noisy neighbors or if bars and restaurants are in residential areas and produce noise levels after 10pm in excess of what local laws permit. We, of course, can assess which noise dose meter you require in relation to the issue you have and the relating laws. We also have microphone extension cords, tripods, calibrators and calibration certificates for most models of noise dose meter.
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Noise Figure And Gain Test Extenders
SA full noise figure and gain test extender that extends the noise and gain measurement capabilities of common and low frequency signal synthesizers and noise figure meters to the frequency range of 110 to 170 GHz. This extender is designed to interface with industry standard noise and gain test systems.
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Low-Noise Fluxgate Sensor
FL1-100
Fluxgate magnetic field sensor with sub-nanotesla resolution and exceptionally low noise. Suitable for detection of fine metal parts in food, measurement of magnetic signatures, paleomagnetic applications, precision navigation, surveillance, shielding technology, and more.
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Noise Assessment System For Noise At Work
NK013
This Noise Assessment System for Noise at Work provides you with everything you need to perform assessments to The Control of Noise at Work Regulations 2005, at an incredible price.
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Phase Noise Testers / Signal Source Analyzers
7000 Series
Berkeley Nucleonics Corporation
The 7000 series is an all-in-one integrated solution that offers an indispensable set of low-noise phase measurement functions. Offering both Absolute and Additive(residual) measurement capabilities in one unit at no additional cost, the 7000 series is the most flexible solution on the market. The instrument comprises a two-channel, cross-correlation system with two internal, tunable references sources that also allows measurements with externally sourced references. We offer three platform options for the 7000 Series Phase Noise Testers: the 7070 1 MHz to 7 GHz, the 7300 1 MHz to 26 GHz, 7340 1 MHz to 40 GHz, 7350 1 MHz to 50 GHz, and the 7360 1 MHz to 65 GHz.
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Low Noise Coaxial Cables For Sensors
Low noise coaxial cables are used with single axis and triaxial charge mode sensors. This table provides relevant specifications for four cable types. Type 003 is the most commonly used, but three other types are also available.
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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, Low Noise, Floating Low Voltage Power Supply System
PL500 Series
The WIENER PL500 is a high density, low noise, floating low voltage power supply system. The PL500-Series has been designed to power lowest noise electronics with medium to high currents (10A to 500A current/channel range) over long distances in voltage or current controlled mode. Operating in either un-sensed or sensed mode the dynamic behavior can be set internally or by software for short, medium or long distances.
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Line Noise and Vibration Test Systems
The sound and vibration characteristics of your product can be used to identify many common mechanical and assembly defectives.
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Advanced Low-Frequency Noise Analyzer
E4727B
Get a deeper, closer look at low frequency noise with the A-LFNA integrated with WaferPro Express, featuring data analysis, wafer prober control and test suite automation.
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PC USB Noise & Vibration Measurement Systems
IEPE Sensor Based Measurement Systems, Charge Amplifier Based Measurement Systems, All-in-One Integrated Vibration Measurement Systems
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Community Noise Prediction Software, Version 2
SPM9613
A low-cost computer program for analyzing community noise and sound propagation emitted from a variety of noise sources. The engineering software is based on the ISO 9613 parts 1 and 2 standards. SPM9613 provides calculations at specific field points (listeners) and predictions of A- and C-weighted sound level contours as well.
