Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Product
Audio Generator
AG-51
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The AG-51 Audio Generator contains a low distortion 20 Hz to 200 kHz sine wave generator, an SMPTE standard intermodulation signal generator and a fixed frequency sine wave generator at 3.15 kHz for wow and flutter tests. Signal outputs are simultaneously available at levels of up to +20 dBm (equivalent sine wave power for complex signals) at separate left (L OUT) and right (R OUT) output connectors. Outputs may be selected for left (L) only, right (R) only, left and right in phase (L+R), and left and right in phase opposition (L-R). Fully balanced or unbalanced outputs at impedance levels 150 ohms or 600 ohms are front panel selectable. Three precision attenuators (10, 1.0 and 0.1 dB) provide a dynamic range of 99.9 dB in 0.1 dB steps. Attenuator dials display the output level directly in dBm in the 150 ohm source impedance configuration. Automatic output leveling circuitry with a built-in self-test feature provides a constant output level thereby eliminating the need for output metering. In the TEST mode the generator output level is reduced to zero, a useful feature during noise measurements.
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Product
NI-9213, cDAQ-9171, and cRIO-9940 USB Temperature Measurement Bundle
865682-01
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NI-9213, cDAQ-9171, and cRIO-9940 USB Temperature Measurement Bundle - The USB Temperature Measurement Bundle with NI-9213, cDAQ-9171, and cRIO-9940 includes the NI-9213 C Series Temperature Input Module and the cDAQ-9171 CompactDAQ Chassis for voltage measurements. This bundle also includes the cRIO-9940 Backshell for strain relief and operator protection from high-voltage signals. The included NI-9213 provides noise immunity, a high common-mode voltage range, NIST-traceable calibration, differential analog inputs, and four channels. Additionally, the NI-9213 features anti-aliasing filters, open-thermocouple detection, and cold-junction compensation for high-accuracy thermocouple measurements.
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Product
Analog-To-Digital Converters
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Teledyne e2v has been innovating data converter technologies for over 20 years and offer a range of analog-to-digital converters that feature:Latency as low as 5 nsUp to 4 channels at microwave frequenciesLowest noise vs. performance on the market at microwave frequenciesThe cutting-edge technology packed into Teledyne e2v's data converters allow our customers to significantly simplify designs with licence free, standard and customized solutions.
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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
Multifunction I/O
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
Wind-Noise Reduction System
WNRS
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The Wind-Noise Reduction System (WNRS) is an array of air inlets connected with pipes to reduce wind-noise and improve signal quality.
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Product
Impulse Noise Simulators
INS Series
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A simulator to reproduce fast rise-up noises which are generated when switching ON / OFF electric current on the inductive load. It can be used for performance evaluation of electronic equipment upon reproduction of line noises which are intruded to the power supply lines or induced noises onto the telecommunication lines.
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Product
DC Power Supplies
SGX Series
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AMETEK Programmable Power, Inc.
The Sorensen SGX Series represents the next generation of high power programmable DC power supplies. The SGX Series is designed for exceptional load transient response, low noise and the highest power density in the industry. With a full 15 kW available down to 20 V output in a 3U package the SGX leads the industry in power density. The power density is enhanced by a stylish front air intake allowing supplies to be stacked without any required clearance between units.
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Product
Single Photon Detector System For Near-Infrared (1.6-2.3 Um Wavelength) Waves With Liquid Helium (LHe) Cryostat
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Insight Product Company is proud to offer Single Photon Detector System for Near-Infrared (1.6-2.3 um wavelength) with Liquid Helium (LHe) Cryostat. Insight Product Co. offers superconducting single photon detectors and ultra-low noise registration systems for the near infrared range. All systems operate in continuous mode, no gating required.
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Product
Common Mode Chokes
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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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Product
Amplifiers
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Instead of cascading a set of narrowband amps, use a single amplifier from Keysight and enjoy ultrabroad bandwidths - like 0.01 to 26.5 GHz, 0.045 to 50 GHz, and ranges in between. But the best thing about Keysight broadband amplifiers is what they eliminate and reduce: noise, crossover networks, and multiple power supplies.
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Product
Noise Figure Measurements With Vector Correction
S93029B
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The S93029B noise figure application enables high-accuracy noise figure and noise-power measurements of amplifiers, frequency converters, and mixers, utilizing Keysight’s unique vector-source-correction technique
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Product
Amplifiers
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low noise wideband current amplifiers (current to voltage converter) with a high gain and wide frequency band.CA261F2 and CA-461F2 are low noise voltage amplifiers which realize high precision signal processing and high density mounting by using single-in-line package which has six-surface strict shield.
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Product
3D Sound Intensity Analysis Software
DS-0225A
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Finding out the position where the noise is occurring, and grasping the state of acoustic propagation are important ways to find effective noise countermeasure or improvement of acoustic environment.
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Product
Seismometers
3T-120 Pothole
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120 s to 50 Hz frequency response (option to 100 Hz), 1500 V/ms-1 (2 x 750 V/ms-1) sensitivity, Covers the complete seismic spectrum with a single transfer function, Measured Self noise below the USGS NLNM from 166 s (0.006 Hz), remaining below the high frequency limit of the NLNM at 10 Hz, High linearity: >111 dB (USGS figures), Dynamic range of 167 dB at 1 Hz (Full octave width across 1 Hz), Cross axis rejection over 65 dB; sensor axes orthogonal to within ±0.05°, Remote, automatic electronic mass locking, unlocking and centring, Operating tilt range of ±5° with adjustable feet for off-horizontal installation bases, Low power consumption: 0.75 W from a 10–36 V supply, Stainless steel enclosure, 100 bar / 10 MPa waterproof connector, IP68 - protection against effects of permanent immersion under pressure to 350 m depth
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Product
NI-9236, 10 kS/s/channel, 350 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module
779994-02
Strain/Bridge Input Module
10 kS/s/channel, 350 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module - The NI‑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 NI‑9236 includes built-in voltage excitation for quarter-bridge sensors. It also has 60 VDC isolation and 1,000 V rms transient isolation, providing high‑common‑mode noise rejection and increased safety.
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Product
Mini MEMS Tunable Filter With VOA
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The Optoplex mini tunable filter described is specifically designed for 100G tunable transceiver analog coherent optics (CFP2-ACO) application. The main purpose of this tunable filter is to suppress the noise to improve the sensitivity and OSNR performance.
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Product
NI-9228 , ±60 V, 1 kS/s/ch, 24-Bit, Simultaneous Input, 8-Channel C Series Voltage Input Module
783861-02
Voltage Input Module
±60 V, 1 kS/s/ch, 24-Bit, Simultaneous Input, 8-Channel C Series Voltage Input Module - The NI‑9228 performs differential analog input. With channel-to-channel isolation, your entire system, including the device under test, is protected from harmful voltage spikes up to the isolation rating. The NI‑9228 is simultaneous sampling with two options for filtering: a low-latency filter or a 50/60 Hz rejection filter. The low-latency filter enables users to use this module in industrial or control applications while getting better external noise rejection.
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Product
NI-9213, 16-Channel, 75 S/s Aggregate, ±78 mV C Series Temperature Input Module
785185-02
Temperature Input Module
16-Channel, 75 S/s Aggregate, ±78 mV C Series Temperature Input Module - The NI‑9213 is a high-density thermocouple input module that is designed for higher channel count systems. With this module, you can add thermocouples to mixed-signal test systems without taking up too many slots. The NI‑9213 includes anti-aliasing filters, open-thermocouple detection, and cold-junction compensation for high-accuracy thermocouple measurements. The NI‑9213 features NIST‑traceable calibration and a channel‑to‑earth ground double isolation barrier for safety, noise immunity, and high common-mode voltage range.
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Product
5G Switch LNA Modules
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Macom Technology Solutions Holdings Inc.
MACOM offers a complete portfolio of high-power switch and LNA modules to cover many sizes and classes of 5G base stations, including Macro Cell, Small Cell, and massive-MIMO AAS in frequency bands up to 6GHz. SOI-based switch modules with up to 20W LTE power handling are extensively used in mMIMO and Small Cell radios, and MACOM proprietary PIN diode Switch modules with up to 160W LTE power handling are widely deployed in Macro radios. Featuring ultra-broadband, low noise figure and excellent power handling and reliability, the family of Switch LNA modules are also well suited for a variety of TDD based communication systems in commercial and military applications.
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Product
IGBT Power Supplies - Air Cooled
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CEHCO The MSA1000 Rectifiers are based on IGBT Technology. This reliable technology assures excellent quality DC currents with a ripple of < 3% and a control accuracy of less than 1%. The MS-Series features constant voltage and current control with easy, quick installation and maintenance. Modular versions easily increase the output by means of series or parallel connection. All models have DC short circuit protection. With forced air-cooled models, the cooling air quantity is controlled in relation to the load reducing contamination and noise levels.
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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
Noise & Vibration Tester
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System PC Based particularly suitable for vibration and noise measurements for the characterization of mechanical, electromechanical and electroacoustic and for the control and monitoring of installations of production. Complete configurability for the use of platforms PC (Notebook, desktop, PXI) suitable to applications of both static labotatorio, both dynamic (eg road-test) and also in the production line (functional tests and monitoring).
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Product
SNS Series Noise Source 10 MHz to 18 GHz (ENR 15 dB)
N4001A
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The SNS series N4001A noise source is ideal for general purpose use with a low reflection coefficent and a nominal ENR of 15 dB from 10 MHz to 18 GHz.
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Product
NIST Calibration for D600A-AT.
D600A-AT-CCNIST
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- Choice of 4 GHz or 6 GHz bandwidth models- Up to 5 Vpk-pk dynamic range with low noise- ±3 V offset range- Low loading and high impedance for minimal signal disturbance- Ideal for DDR2, DDR3, LPDDR2- Deluxe soft carrying case- Innovative QuickLink architecture- Wide variety of tips and leads-- Solder-In Lead-- Optional Positioner (Browser) Tip-- Quick Connect Lead-- Square Pin Lead-- HiTemp Solder-In Lead
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Product
IP Module
IP-429
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ARINC 429 is a versatile standardized bus interface. ARINC 429 is robust featuring Manchester encoding and enough voltage swing to provide excellent noise immunity and reasonable throughput rates. ARINC 429 is the interface of choice for critical applications; for example aircraft instrumentation and control.
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Product
Super Phosphor Oscilloscopes
SDS1000X-E Series
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SIGLENT’s new SDS1000X-E Series Super Phosphor Oscilloscope is available in 100 and 200 MHz bandwidths and 2 or 4 analog channels. It has a maximum sample rate of 1 GSa/s and a standard record length of 14 Mpts. For ease-of-use, the most commonly used functions can be accessed with its user-friendly front panel design.The SDS1000X-E series employs a new generation of SPO (Super Phosphor Oscilloscope) technology that provides excellent signal fidelity and performance. The system noise is also lower than similar products in the industry. It comes with a minimum vertical input range of 500 uV/div, an innovative digital trigger system with high sensitivity and low jitter, and a waveform capture rate of 400,000 frames/ sec (sequence mode).
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Product
Safety And Environmental Logging Sound Meter System
05NK001
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The simple data logging package for running and analysing noise assessments and checking noise levels. Kit comes with either a Class 2 or Class 1 sound meter for workplace safety and environmental noise checks, a calibrator and PC software in a case.
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Product
Micro-Ohmmeter
LOM-510A
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The Micro-Ohmmeter has 4 digits, 0.02% basic accuracy and 1 resolution. The 4-terminal kelvin measurement connection minimizes lead resistance errors and 80 dB of ac noise rejection provides rock-steady readings even in noisy locations. The micro-ohmmeter comes with rugged 4-terminal test clips and a large selection of optional probes, clips and fixtures allowing attachment to any low-resistance unknown.
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Product
Voltage Pulse Generator
SKS-IV10J
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Shanghai Sanki Electronic Industries Co., Ltd.
The voltage pulse generator SKS-IV10J is completely designed in accordance with the requirements of the impulse voltage chapter in OIML R 46-1/-2; it meets the requirements of the new IEC60255-5 and GB14711 standards; the leakage current detection alarm function is added, and the leakage current limit can be Adjustment; using linearized high-voltage power supply, low noise, high stability, high voltage accuracy and long service life.
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Product
Transmission & Hydraulic Test Stands
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Our equipment tests automatic and automated-manual transmissions. On and off-highway transmission test stands, transmission and hydraulic component test stands and valve body test stands. AIDCO Test Systems offers the latest in modern, electric motor and hydrostatically-driven transmission test stands. All units may include an air-cooled eddy current absorber (standard on the 450E), resulting in minimal dyno test cell noise and reduced maintenance.
