Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Product
40mA One-Channel Amplifiers
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Piezo amplifiers/controllers are designed for high precision low to mid-speed positioning of low-voltage piezo actuators. These amplifiers are tuned for extremely high output stability and extremely low signal noise at the output. A low amplifier signal-to-noise ratio is very important because it determines the total resolution of the actuator. The nearly unlimited resolution of piezo-electric actuators using these amplifiers results in ultra-precise movement.
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Product
Environmental Sound Meter
SONIK-E
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Ultra low sound level detection with the SONIK-E, Environmental Sound Meter. SONIK-E is the pick up and go noise meter for any environmental noise assessor. It's solid and dependable, and is our most robust sound meter yet making it perfect for your most rugged environments.
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Product
MMW Downconverters
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Innovative Technical Systems has designed numerous microwave and millimeter-wave downconverters for a variety of applications. Typical downconverters include balanced mixers, phase-locked local oscillators, LO multipliers, and output IF amplifiers. RF LNAs are also provided for many downconverters up to 100 GHz.These downconverters can be designed for numerous communications, radar, and instrumentation applications. We will customize these converters for frequency coverage ,noise figure, gain, and mechanical form-factor.
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Product
Cables & Accessories
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Noise measurement accessories, cables, extension cords, connectors, microphone amplifiers and more.
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Product
SSA-X Signal Source Analyzer, 1 MHz To 8 GHz
E5055A
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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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Product
Low Frequency Active Antenna And Amplifier
Type NLF-2
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A Hot, Active, Noise Reducing Antenna System that will sit on your desk and copy 2200, 1700, and 600 through 160 Meter Experimental and Amateur Radio Signals!
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Product
Infiniium V-Series Real-Time Oscilloscopes
V-Series
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Bandwidth upgradability to 33 GHz for best investment protection Maximize eye height measurements with the least amount of noise contribution from the oscilloscope See the truest jitter performance of your design with the lowest 100 fs oscilloscope intrinsic jitter Debug some of your most difficult designs with the industry’s longest hardware serial trigger
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Product
Coaxial Probes
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Smiths Interconnect offers the industry's most extensive line of high reliability coaxial probes. Our coaxial probes provide a low noise, controlled impedance signal path with reliable and easy connect/disconnect options.
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Product
PXI-6239, 8 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sinking DO, Bank-Isolated, PXI Multifunction I/O Module
779626-01
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8 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sinking DO, Bank-Isolated, PXI Multifunction I/O Module—The PXI‑6239 is a bank-isolated DAQ device designed for current I/O. It offers analog I/O, digital input, sinking digital output, two 32‑bit counters, and digital triggering. The digital input and outputs are compatible with 24 V signals. It combines the safety and performance benefits of isolation with high-performance timing, amplification, and calibration technologies to offer accurate measurements and precise control. The PXI‑6239 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PXI‑6239 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays.
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Product
Voice Monitoring
VOIP Echo
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*The Voice Band Analyzer (VBA) is an analysis tool for monitoring the quality of voice band traffic (including hybrid echo) over VoIP, TDM and wireless networks*VBA works in conjunction with GL's TDM, Packet, and Wireless non-intrusive capture products, such as T1 and E1 Call Capture and Analysis, VoIP PacketScan&trade, and GSM, CDMA, and 3G Call Capture Products. VBA instantly detects voice file captures and with appropriately installed analysis modules, monitors speech levels, noise levels, and hybrid echo. Other analysis modules such as ITU-T P.561, P.562, P.563, fax and modem analysis, and many others can be hosted as plug-ins.*The VBA application can also operate on pre-captured files. It supports A-Law, µ-Law, 16-bit PCM (Intel), 16-bit PCM (Motorola) and MS Wave file formats.*Required software PKV100 and VBA032 at each probe location and PKV170 PacketScanWEB - Network Surveillance Software*Required hardware - 1U rack PC with sufficient hard disk for capturing over 10,000 calls (80 GB HD) for each VBA colocated with a probe*Additional hardware - PC for PKV100 PacketScan™ Software
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Product
Triple Output Power Supply
U8030 Series
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The Keysight U8030 Series variable DC power supply has a total output of 375 W—making this solution an ideal power source in the design and manufacturing of electronic devices. The U8030 Series power supplies feature an output sequencing capability for semiautomated tests. These power supplies enable you to generate output sequences with minimal programming skills. This solution features excellent load regulation and clean output noise for continued stability.
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Product
I/Q Downconverters/Receivers
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In-phase quadrature (I/Q) downconverters integrate an image reject mixer, a low noise amplifier, a 90° hybrid, and an LO buffer amplifier in one package. These devices are used in receiver applications to downconvert radio frequency (RF) signals to the desired intermediate frequency (IF) while ensuring low noise and high image rejection performance.
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Product
Impulsive Sound Source
BAS006
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The BAS006 is an innovative device used to create impulsive noise that includes low frequency energy and avoids problems like secondary bounce. These characteristics make it a great choice for quickly measuring reverberation time when the complexity and weight of a speaker and amplifier is not needed.
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Product
10 MHz Ovenized Oscillator
SC10
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Stanford Research Systems, Inc.
The SC10 is a high stability ovenized 10 MHz quartz oscillator that combines excellent phase noise, Allan variance, and aging characteristics. Using an SC-cut crystal for lowest phase noise characteristics, and an innovative "electronic double oven"
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Product
USB Multifunction Digital I/O Module
Model JI-4040
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The JI-4040 module is a versatile, easy-to-use device for adding universal digital I/O capability to acomputer system via a USB connection. The module is comprised of 36 bidirectional I/O channels and 2 Special Function Ports (SFP). The SFP can be software programmed as a variable duty-cycle clock/pulse generator, event counter, or interval/pulse timer. The I/O is selectable to interface 5.0 V, 3.3 V, 2.5 V, or 1.8 V systems. Host to module isolation eliminates ground-loops and provides protection from noise and switching transients on external signals. The JI-4040 is available as either a desktop unit or low-cost OEM board.
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Product
RF Upconverters
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SignalCore offers traditional multi-stage and single-stage RF upconverters, and Direct IQ modulators that feature low phase noise, high dynamic range, wide bandwidth, and continuous tuning. SignalCore RF upconverters are compact and built for mechanical robustness and ruggedness. Applications include various test and measurement applications such as those in point-to-point radio, wireless communication, ATE, and software-defined radio. All products are provided with a Graphical User Interface (GUI), driver, and API for easy programming control.
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Product
Space Qualified Oscillators
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Our range of space qualified precise low noise rubidium oscillators. These highly accurate space qualified frequency references are used in Satellite Navigation Systems, Intelligence Reconnaissance Satellites, Military Communication Satellites, Deep-Space Survey and Space Stations
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Product
Underground Pipeline Leak Detector
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The devices are tuned to detect sounds or vibrations induced by water leaking from pressurized pipes and these spots are then marked to ‘ listen’ and pinpoint the leak using listening devices or leak noise correlators.
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Product
Industrial Vibration Sensor
IVS-500
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The new IVS-500 Industrial Vibration Sensor is the key to fast acoustic quality inspection, structure-borne noise analysis and reliable pass-fail decisions. This Laser sensor measures reliably, in demanding industrial environments, without contact and therefore without wear and on virtually all surfaces. Costs and yields are therefore optimized by reducing false rejects in the production and assembly process. The simple setup and ruggedized sensor design of the IVS-500 enable a smooth integration into production test systems. Complemented with the software tool QuickCheck, Polytec offers a comprehensive solution for reliable pass/fail analysis.
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Product
Ethernet/LXI digitizerNETBOX 16 Bit High Speed Digitizer - 180 MS/s on 2 Channels, 2 Single-Ended Inputs
DN2.447-02
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The digitizerNETBOX DN2.44x series allows recording of one, two, four or eight synchronous channels with sampling rates of 130 MS/s up to 500 MS/s. These products offer outstanding A/D features in resolution, bandwidth and speed as a remote instrument. The powerful A/D amplifier section offers six different input ranges, two input paths, AC/DC coupling and noise reduction filters.
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Product
30W Power Supply, 35V, 0.8A or 60V, 0.5A
E3641A
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Keysight basic DC power supplies offer essential features for a tight budget. The single & dual output, 30-100 W GPIB E3640 series provide small, compact size for bench and system use; low output ripple and noise; and built-in measurements and basic programmable features. The Keysight 30W, single output E3641A is a stable and reliable power supply for benchtop and basic automated test applications, and enables versatile solutions for tests that require moderate speed and precision with both GPIB and RS232.
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Product
Software For Jury Testing
SQala
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With SQala, jury tests can be set up quickly and easily and performed either at a single-user system or in a listening studio. SQala supports playback of binaural recordings and enables product or ambient noises to be rated flexibly and aurally accurately no matter where or when....
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Product
Charge Integrator Amplifiers
AD8488
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Analog Devices’ charge integrator amplifiers convert the charge acquired by X-ray or photodiode detectors to a voltage. The channels are composed of CMOS transistors, using typical high input impedance CMOS gates. The integrators generate charge dependent voltages using a range of selectable capacitance values that accommodate a broad range of input charge values. The integrators are followed by single-ended input to differential output voltage amplifiers where offset and low frequency noise voltages are subtracted from the input voltages.
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Product
Capacitive Sensors
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*High noise immunity*Sensing range adjustable by means of potentiometer or teach button*Plastic or metal housings for different applications*Sensors for position and level detection*Accessories for mounting on tanks or sight glasses
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Product
NI-9265, 4-Channel C Series Current Output Module
779334-02
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4-Channel C Series Current Output Module - The NI‑9265 is ideal for interfacing and controlling industrial current-driven actuators at high rates. The module has built-in open-loop detection, which generates an interrupt in software when an open loop is detected as well as zeroing outputs to ensure safety and avoid driving actuators at system power on. The NI‑9265 requires an external power supply and includes a channel‑to‑earth ground double isolation barrier for safety and noise immunity.
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Product
Sindie Online
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Sindie Online is an industrial-grade process analyzer delivering continuous sulfur detection to monitor fuel streams and help to prevent tank contamination. It has many advantages over competing technologies: Powered by MWDXRF, Sindie Online has an exceptional signal-to-noise ratio using monochromatic excitation of the X-ray source characteristic line – a technique that is faster, safer and cleaner than UVF.
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Product
Signal And Spectrum Analyzer
FSVA3000
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An analysis bandwidth of 400 MHz, an outstanding phase noise of –120 dBc/Hz and a high dynamic range – the R&S®FSVA3000 signal and spectrum analyzer has everything needed to keep up with demanding measurement applications such as 5G NR. With its high measurement speed and easy usability, it is the right instrument for demanding signal analysis tasks both in the lab and on a production line.
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Product
Automotive Electronic Stethoscope
77109
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Helps to identify engine and chassis noise. Maintain all health and safety precautions whilst using on running engine. Helps to identify engine and chassis noise. Powered by a 9volt battery (not supplied). Complete with headphones and volume control. CE certificated.
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Product
Noise Consultants Assessment System With 1/1 & 1/3 Octaves Class 1
01NK111/112
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This Noise Assessment System can be configured to your exact requirements, making it the ideal product for Noise Consultants who perform a wide variety of noise assessments for industrial and environmental noise.
