Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Acoustic Test Chamber
For the development of small devices and components. Reliable measuring environment for noise tests and quality assurance.
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PXI/PXIe RF Multiplexer, Single 16-Channel, 3GHz, 75Ω, SMB
42-835A-001
The 40-835A-001 (PXI) and 42-835A-001 (PXIe) are single 75 Ohm 16-channel RF multiplexers in a single slot. It has been designed to exhibit low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. The MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz. The design of the 40/42-835A minimizes the injection of noise and unwanted signals into the signal path by careful attention to the mechanical and electrical design.
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Digital Noise Filter
DSP-599zx
The DSP-599zx, with highly aclaimed digital noise filters, is part of the latest generation Timewave DSP filters. Incorporating the newest high speed CPU, the extra power gives the user unparalleled features and field upgradeability for the future. The new LCD display, pushbuttons, and Visible Memory let you see the exact settings of the filter. The optical encoders give the operator continuous tuning of the filters.
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Detector & Controller
LM-Pbs TEC1
Lead-Sulfide Detector (Range: 1 - 2.4 micron) Detector element is 5mm x 5mm. Has a 2 stage Thermoelectric Cooler which increases the gain by 3x without an increase in noise. This is a recommended upgrade when using a monochromater with a LMC-20.
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Power Supply 650W
UEP10M52-53 / CEP10M52-53
The UEP10M52 series is a UEP10M variation with a maximum current output on +6V or -6V (asymmetric) and without +/-12V for use in CERN type CAMAC crates with a maximum 650W power output. The power supply has all the standard features of the UEP10 family as high precision and lowest noise DC outputs and a cut-off protection for overload, over- / and under voltage and over temperature failures.
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Noise Control And Acoustical Consulting Services
Our acoustical consultants use the latest and most advanced noise prediction and modeling software, precision sound measurement equipment and detailed acoustical analysis that enable us to help our clients achieve their project's noise requirements and goals. Contact us before your noise challenges become noise pollution problems.
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FD-11637, 8-Channel Strain/Bridge Input Device for FieldDAQ
785641-01
8-Channel Strain/Bridge Input Device for FieldDAQ - The FD-11637 can measure eight channels and has built-in bridge completion and voltage excitation to support for quarter-, half-, and full-bridge sensors. It also features anti-alias filtering, offset nulling, and shunt calibration to reduce the effect of noise and improve measurement accuracy. The FD-11637 has an ingress protection rating up to IP67 (dust- and water-resistant), can operate in -40 °C to 85 °C environments, and can sustain 100 g shock and 10 grm vibration. The FD-11637 incorporates Time Sensitive Networking (TSN) and features an integrated network switch and built-in power circuitry for simple daisy chaining. You program the FD-11637 with NI-DAQmx, which automatically synchronizes multiple FieldDAQ™ devices. The FD-11637 is ideal for test cell and outdoor environments.
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Precision DC Power Module, 50V, 1.5A, 50W
N6761A
The Keysight N6761A is a 50 W precision DC power module that provides low noise, and precise control and measurements in the milliampere and microampere region with the ability to simultaneously digitize voltage and current, and capture those measurements in an oscilloscope-like data buffer. For leakage current or sleep-mode current measurements, add option 2UA for measurement capability down to 1 μA.
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Analog AC Leakage Current Clamp Tester
MCL-350
MULTI MEASURING INSTRUMENTS Co., Ltd.
*High accuracy analog display with strong taut band meter.*3 years long battery life.*Meter lock function and data output for recorder.*Filter rejection for high frequency noise
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Channelized Up-Converter
UPCV Series 5” x 2.5” x 0.6”
*Connectorized Package *Wide Choice of Frequency Ranges *IF to Ka-Band Solutions Available *Integrated Filters *Gain Control *USA, RS232 or SPI Control *Internal / External References *Low Power Consumption *Low Phase Noise *Low Spurs
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High-Speed Oscillators
Renesas' laser diode driver product portfolio includes a push-pull oscillator used to reduce laser noise.
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Active Filter
J2190A
The J2190A active filter presents a high impedance (approximately 150kOhms) minimizing the loading of the circuit being tested. The output impedance is 50 Ohms allowing low noise coaxial connections to all typical test equipment. The 0.1Hz-10Hz noise band is common for opamp measurements, voltage regulators and voltage references. Many application notes offer schematics of such a filter for test purposes. An engineer’s time is much too valuable to be spent building test equipment. We have created a 4th order high pass and 4th order low pass filter with an optimally flat response and 0dB gain. Additional filters can be cascaded for even sharper cutoff.
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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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Portable 4-channel Noise & Vibration Analysis System
WCAmini AD-3661
* USB bus power unit * 24 bit, 4-channel measurement * A channel exclusively for tacho pulse measurements * WCAPRO (multi analysis software) * FFT analysis and real-time octave analysis * Tracking analysis and throughput recording/playback * Equipped with WCA Lite (easy-to-use analysis software)
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USB-8452, 3.3 MHz I2C, 50 MHz SPI I2C/SPI Interface Device
781964-03
The NI USB‑8452 is a master interface for connecting to and communicating with inter-integrated circuit (I2C) and serial peripheral interface (SPI) devices. With plug‑and‑play USB connectivity, the USB‑8452 is a bus-powered, 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, toggling LEDs, or strobing convert and data ready lines common to analog converter chips. You can physically place the USB‑8452 more closely than PCI interfaces to I2C/SPI devices, which reduces I2C bus length and minimizes noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.
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Triple Output Power Supply
U8030 Series
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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Low Noise Preamplifier
The UPL-3001 preamplifier is a high performance solution for the low-noise amplification of ultrasonic signals. Designed for signals ranging from 0.5 to 300 MHz, the small and lightweight, rugged unit is perfect for remote applications. This is ideal for P&C, TT, AUT or TOFD inspection.
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Partial Discharge Testing Equipment
3i
The portable multipurpose 3i device (Intellectual Insulation Indicator) is for eff ective high-voltage equipment insulation monitoring on-line. The 3i device measures and analyses partial discharges (PD). For eff ective PD measurement and noise rejection, there are two types of sensors used in the device: the acoustic sensor and the TEV sensor. Both the sensors are built into the device case, and so do not need any connection cables. The device is supplied in a strong metal case; at the faceplate there are the colored screen and two buttons: power button and function button.
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HES Spectrometers
ISI’s standard HES spectrometer offers a 100-fold increase in throughput over conventional systems currently available. This increased throughput can lead to a superior signal-to-noise ratio (SNR) for a given observation over a Czerny Turner instrument. The HES spectrometer contains no moving parts and yet offers the advantages of a Michelson Interferometer with the spectral properties of a traditional diffraction grating-based device, such as a Czerny Turner spectrometer.
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Ferrite Bead Inductors
Our range of of ferrite bead inductors contain the very latest in multi layer ferrite beads technology, thus providing the ultimate in performance demanded by today’s high Speed EMI noise filtering products. Our line of ferrite beads are in an industry standard size and footprint. All products are RoHS compliant. Our Ferrite Bead EMI Suppressors are available in Single, Single GHz, Array and Power types. Find features of each listed below.
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PXIe-5654, 250 kHz to 20 GHz, PXI RF Analog Signal Generator
784777-01
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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Ultrasonic Leak Detector
VPX-WR
The Superior AccuTrak Model VPX-WR represents THE state-of-the-art technology for ultrasonic air leak detection! This ultra-durable and waterproof instrument incorporates our patented and trademarked circuitry we call "DND" (Dynamic Noise Discrimination). Older detectors using only the heterodyne technique, simply cannot offer the same leak detection abilities, especially in loud plant environments.
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AC/DC High Sensitivity Clamp-On Current Probe
N7026A
The Keysight N7026A is a 150 MHz bandwidth, active current probe for InfiniiVision and Infiniium oscilloscopes. The probe features wide and flat bandwidth (DC-150 MHz), lower noise (<250 µArms), and wide input range (up to continuous 30 Arms or non-continuous 40 Apeak). This enables you to measure down to 1 mA/div, giving you a much more accurate view of your low-level signals.
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ICP Electret Array Microphone
130A23
Nominal Microphone Diameter: 1/4" Frequency Response Characteristic (at 0 incidence)Free-FieldInherent Noise (A Weighted)<30 dB(A) re 20 Pa<30 dB(A) re 20 Pa Dynamic Range (High)150Environmental Temperature Range ( Temperature Effect on Output (-10 to +50 C)<0.7 dB<0.7 dB[2] Influence of Axial Vibration Excitation Voltage 18 to 30 VDC18 to 30 VDC
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Low Voltage DC / Battery Powered HV Amplifiers
WMA-01 And WMA-01LF
The Falco Systems WMA-01 is a high voltage amplifier that runs from an 24 - 30V DC power supply and can be battery powered if required, e.g. for use in a Faraday cage. Its internal high voltage generator is inductor-free and hence does not spread magnetic interference in sensitive experimental setups. The output noise is impressively low at 3mVrms. For extremely low noise applications where bandwidth is not an issue, a dedicated WMA-01LF version is available that contains an output low pass filter capacitor which reduces the bandwidth to 50Hz, but makes the noise drop to below 0.1mVrms. This bandwidth-limited amplifier is ideal for MEMS or piezo positioning with manual voltage adjustment.
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Digital Sound Meter
SM-100
Model SM-100 Digital Sound Meter is ideal for measuring noise levels from 30 to 130 dB with accuracy of ±1.5 dB. Model SM-100 has a frequency of 31.5 Hz to 8 kHz, three different dB ranges, and a 1/2" condenser microphone. The SM-100 has two frequency weightings: the "A" weighting ranges from 30 to 130 dB, while the °C" weighting ranges from 35 to 130 dB.
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Ancillaries.. Conducted
The ease and effectiveness of conducted emission measurements can be enhanced by the use of appropriate filters. In particular, broadband noise below the frequencies of interest can cause limiting (compression) in spectrum analysers, distorting the measurements.
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OTDR Avalanche Photodetector
APD
Macom Technology Solutions Holdings Inc.
MACOM’s new Optical Time Domain Reflectometer (OTDR) detector products are based on proprietary Avalanche Photodetector (APD) Technology. The MACOM OTDR products are a low noise, low dark current and highly sensitive inGaAs/GaAs APD operating between 1250nm to 1650nm.
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Three Axis Accelerometers
TAA
The Inertial Labs MEMS TAA-308, TAA-315 and TAA-340 are the third generation of the Inertial Labs MEMS, three-axis high-precision accelerometers released in a stand-alone design. The TAA-308, TAA-315 and TAA-340 are revolutionary, compact, self-contained, strapdown, Navigation-grade Accelerometers that measure linear accelerations with high precision due to their unique design and developed by Inertial Labs over last 20 years several significant know-know and technics in calibrations of inertial sensors. Measured by TAA Accelerometers accelerations are determined with low noise and very good repeatability for both motionless and dynamic applications.
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High-Performance Autoranging DC Power Module, 20V, 50A, 500W
N6755A
The Keysight N6755A is a 500 W high-performance, autoranging DC power module that provides low noise, high accuracy and programming speeds that are up to 10 to 50 times faster than other programmable power supplies. Optional high-speed test extension offers an oscilloscope-like digitizer that increases measurement accuracy when viewing high-speed transient or pulse events within the device-under-test (DUT).
