Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Noise Source Family
347
The R347B waveguide noise source cover the R-band (26.5 to 40 GHz frequency range), while the Q347B model cover the Q-band (33 to 50 GHz frequency range), allows you to make accurate noise figure measurements on millimeter-wave devices.
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Stepper Motor Drivers
Minimize noise and vibration in your stepper motor designs with our QuietStepTM adaptive stepper motor drivers. We offer a complete lineup of stepper motor drivers for office automation, industrial, and automotive applications. Our advanced QuietStepTM solutions use proprietary algorithms to reduce torque ripple and current distortion. To minimize ripple current for the various operating conditions, QuietStepTM adaptive stepper motor drivers perform on-the-fly adjustments to the amount of fast decay during a pulse-width modulation (PWM) cycle. This adaptive feature improves system performance, reduces audible motor noise and vibration, and increases step accuracy.
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PXIe High-Speed Digitizer/ Wideband Digital Receiver, 12-bit, 3.2 GS/s, FPGA Signal Processing
M9203A
The Keysight M9203A is a low noise, 12-bit PXIe high-speed digitizer/ wideband digital receiver with programmable on-board processing. With a wide analog bandwidth, this high-speed digitizer is ideal for applications requiring wideband signal capture and very high dynamic range. The M9203A is a dual-slot 3U PXIe 12-bit wideband digital receiver running at 3.2 GS/s, up to 2 GHz instantaneous analog bandwidth and providing a large 4 GB DDR3 acquisition memory. The M9203A features a large XilinxFPGA that can implement different functionalities depending on the selected firmware option. Dedicated functions can also be implemented on board, allowing support of various applications. Furthermore, Keysight is supporting the deployment of custom processing algorithm on this digitizer with the U5340A FPGA development kit. Integrating algorithms minimizes the need for additional circuitry and exploit the full density and speed of the digitizer.
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C Series Voltage Output Module
The C Series Voltage Output Module helps you update analog output models that feature overvoltage protection, short-circuit protection, low crosstalk, fast slew rate, high relative accuracy, and NIST-traceable calibration. This module includes up to 16 channels. Some models include a channel-to-earth ground double isolation barrier for safety and noise immunity as well as improved signal quality, and some higher density models conserve chassis space, which leaves room for other measurement types.The C Series Voltage Output Module includes the NI-DAQmx driver and configuration utility that simplify configuration and measurements. NI-DAQmx supports NI programming environments as well as Python, ANSI C, C#.NET, and MathWorks MATLAB® software.
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Power Supply QP305E 2x30V/5A
*On / Off switch output section*4 independent regulated DC output*Independent serial and parallel output*Constant voltage and current*Low ripple and noise*Four digit LED displays three*16 hours at full loadd
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Wide-range Programmable DC Power Supply
IT6900A Series
IT6900A series wide range programmable power supply have built-in standard RS232, USB, GPIB, RS485 and analog interface (RS485 and analog interface are just for IT6900B), support SCPI protocol, facilitate remote control, industrial PLC control and the formation of intelligent test platform. Remote compensation terminals avoid the problem of inaccurate testing caused by voltage drop on the wire.Low ripple, low noise and built-in digital voltmeter make IT6900A easy to do external measurement.IT6900A can be widely applied in DC-DC power supply module, battery charging and sensors and other test areas.
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XCITE 1100 Laboratory Series
The Xcite 1100 Laboratory Series is the most popular of the Xcite product line because of its large force capacity and broad frequency range compared to its extremely compact size. The 5 GPM 3-Phase hydraulic power supply used in the system provides a high level of low frequency displacement response for testing system subassemblies and non-linear structures such as suspensions and elastomeric dampers. The small piston area of the exciter and the high performance servovalve combine to provide excitation to over 1000 Hz allowing structure borne noise path evaluations.
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350 MHz Preamplifier
SIM914
Stanford Research Systems, Inc.
The SIM914 350 MHz Preamplifier contains two wide-bandwidth, DC-coupled amplifiers, each with a gain of 5 (14 dB). Its fast rise time, low noise and excellent DC accuracy make it an ideal instrument for amplifying signals like those from photomultiplier tubes and photodiodes.
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sbRIO-9236, Non-Enclosed, 10 kS/s/channel, 350 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module
781580-01
Non-Enclosed, 10 kS/s/channel, 350 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module - The sbRIO‑9236 measures dynamic strain on all channels simultaneously, allowing for synchronized, high-speed measurements. This capability is important for applications, such as impact tests, that require comparison across many channels at a particular instant in time. The sbRIO‑9236 includes built-in voltage excitation for quarter-bridge sensors. It also has 60 VDC isolation and 1,000 Vrms transient isolation, providing high‑common‑mode noise rejection and increased safety. Non-enclosed modules are designed for OEM applications.
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High Speed Ethernet DAQ
Ultraview's ethernet based acquisition boards bring low noise, large channel count solutions to common open-source platforms. The flexibility of being able to combine a large number of publicly available firmware/software modules with laboratory quality data acquisition chips makes many previously difficult project integrations possible at a fraction of the cost of developing the entire system.
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Sound Level Test System
In a world where precision and performance rule, measuring and controlling sound levels can be crucial to the success of your product or project. The team at Integrated Test & Measurement (ITM) have developed a customized solution that not only measures and collects sound-level data, but will help your team identify the specific components causing all that noise.
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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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PCI Digitizers
ATS330
ATS330 provides the best value in the mid-range PCI Digitizer market. With its high performance, low noise 50 MS/s ADCs, fully programmable analog front-end and numerous other features, it is an ideal digitizer for many applications
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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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USB-8451, 250 kHz I2C, 12 MHz SPI I2C/SPI Interface Device
779553-50
The NI USB‑8451 is a master interface for connecting to and communicating with inter-integrated circuit (I2C), System Management Bus (SMBus), and serial peripheral interface (SPI) devices. With plug‑and‑play USB connectivity, the USB‑8451 is a portable solution to communicate with consumer electronics and integrated circuits. It also includes eight general-purpose digital I/O lines for a variety of applications, such as configuring the address of I2C devices or toggling LEDs. The USB‑8451 can be physically located more closely to I2C/SPI devices than PCI interfaces, reducing I2C bus length and minimizing noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.
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Mixed Signal Oscilloscope: 20 GHz, 4 Analog Plus 16 Digital Channels
MSOV204A
20 GHz analog bandwidth (upgradable)4 analog plus 16 digital channels Capture a longer signal trace with up to 80 GSa/s sample rate and 2 Gpts of acquisition memory Get the best signal integrity with the low noise floor (1.54 mVrms at 50 mV/div) and lowest jitter measurement floor (100 fs)See better measurement accuracy with ENOB values in excess of 5.5 and a SFDR exceeding 50 dBC Access the broadest range of jitter, trigger, analysis and protocol tools (featuring Precision Probe)
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Common Mode Chokes
Common Mode Chokes, as the name implies, are designed to attenuate and filter common mode noise within an electric system. The key parameters for a common mode choke are the current rating (to ensure the part does not overheat within the application), the impedance versus frequency (to ensure it is optimized to attenuate the desired frequencies), the isolation voltage (to ensure it meets board level requirements between the line and neutral phases) and safety isolation (to ensure it meets the safety requirements of the end-application). It is important to remember that common mode chokes cannot saturate in the application (under normal use) as they are designed to ensure that the line and return currents are balanced.
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Sound Testing
SP series
Are ideal for on-site measurements in accordance with the noise at work legislation for industrial and office environments.
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Audio Analyzer
DScope M1
All essential measurements like THD+N, noise, crosstalk, sweeps, impulse response plus simple code free test automation and additional modules for advanced features.
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Low Noise Differential Preamplifiers
Provide a high gain amplification to 1MHz with an AC output derived from a very low noise FET instrumentation amplifier. Each model has fixed gain settings of x1 (0dB), x10 (20dB), x100 (40dB) and x1000 (60dB) over a selectable bandwidths of 100Hz, 1kHz (HP), 3kHz, 30kHz, 100kHz and 1MHz (7000 model only). Noise referred to input is 7nV√Hz and common mode rejection is >100dB at 1kHz. Momentary pushbutton switches are provided that control coupling, bandwidth, gain and channel on/off selections. BNC connectors are provided for single-ended and differential input, ac output, and dc output (optional) connections.
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Assembly and Testing of Power Steering Motors
Interlinked stations for assembly and testing of servo-electric steering drives*Station 1: Force / path monitored*Station 2: Verification of the software version, with variant-dependent parameterization*Station 3: Leak test as vacuum test as the overpressure test*Station 4: Function and noise testing and order analysis
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Evaporative Light Scattering Detector
ELSD-LTII
The ELSD-LTII utilizes a high-efficiency LED and enhanced digital signal treatment to minimize noise and deliver optimum sensitivity for trace analysis. An innovative cell design also reduces band broadening and allows sensitivity levels below 200 picograms. The high-performance optical detection system can also be used for combinatorial chemistry and high-throughput screening applications. The new Low Temperature Evaporative Light Scattering Detector (ELSD-LTII) is an easy-to-operate, universal detector that identifies analytes with uniform sensitivity regardless of their spectroscopic properties. It is not a spectroscopic detector. Instead, it removes the mobile phase through evaporation and then makes a light scattering measurement of the dried analyte particles.
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Special / Customer Spec. Crates
6U VME 4500
The WIENER VME 4500 crate series is a compact new generation of 19" integrated packaging system with frontal cooling air intake for standard VME/VME64 bus systems with 6Ux160mm cards. Designed primarily for applications in data acquisition, control and test instrumentation it combines superior mechanical quality with lowest noise power supply technology.
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Noise Dosimeter
ASV5910-3
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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PXIe-5654, 250 kHz to 20 GHz, PXI RF Analog Signal Generator
783126-02
PXIe, 250 kHz to 20 GHz, PXI RF Analog Signal Generator - The PXIe-5654 features a combination of exceptional phase noise and frequency tuning time. These features address applications such as blocker test/receiver desensitization, high-performance intermodulation distortion measurements, and various electronic warfare applications. The PXIe-5654 is designed to meet the challenging requirements of RFIC characterization, satellite test, and radar applications. Some PXIe-5654 options include a PXIe-5696 Amplitude Extender Module. The PXIe-5696 supports a frequency range of 250 kHz to 20 GHz and an extended amplitude range up to 27 dBm.
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Powered VME Crates
6U VME 6023
The WIENER VME 6023 crate series is the newest generation of 19" integrated packaging system for standard VME/VME64 bus systems with 6Ux160mm cards.Designed primarily for applications in data acquisition, control and test instrumentation it combines superior mechanical quality with lowest noise power supply technology.
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VCOs with Single Output
Analog Devices voltage controlled oscillator (VCO) portfolio supports a broad range of applications. Our extensive product line includes multiple devices that offer excellent phase noise performance over temperature, shock, and process due to their monolithic structure. We also offer ultrasmall size, low phase noise, low power consumption, and wide tuning range options to meet multiple design needs.
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Wireless
Headsets
Designed for any intercom application, Trilogy headsets offer:*Heavy duty single or dual muff headset according to personal preferences and ambient noise considerations.*Robust moulded enclosed flexible mic boom to withstand the rigours of broadcast operations.*1.5m steel cable terminated with XLR5 plug for connection to common beltpack units.
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Low G Sensitive Oscillators
Precision Test Systems is increasingly becoming a world leader in ultra-low phase noise (ULN) crystal and rubidium oscillators. We manufacture the CFS10B crystal frequency standard and the RFS10E and RFS10F rubidium frequency standards. All these models can also be locked to the global satellite service operated by the USA (GPS), Russian (GLOSNASS) and Europe (Galileo). We also have a complete range of distribution amplifiers to compliment these frequency standards.
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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.
