Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Faraday Cage
Electrostatic noise from the laboratory environment disturbs measurement signals and decreases data quality drastically for small current signals. Our Faraday Cage enables effective shielding for measurement on high impedance or low current samples.
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Low Level Voltage Measuring Instruments
This instrument has a very wide range of source resistance capability and has an equivalent noise resistance of less than 10 ohms. Sub-nanovolt resolution is possible. The N11 has many applications, including cryogenic measurements.
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PXI/PXIe RF Multiplexer, Single 4-Channel, 3GHz, 75Ω, MCX
42-832A-101
The 40-832A-101 (PXI) and 42-832A-101 are 75 Ohm 4 to 1 RF multiplexers with 1 bank in a single slot. They have been designed to exhibit low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The design of the 40/42-832A 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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Phase Noise Tester 5MHz to 40GHz
Model 7340
Berkeley Nucleonics Corporation
Broad Frequency Range in a single compact instrument from 5MHz to 40GHz. Measurement offsets from .01Hz to 100MHz. Absolute Phase Noise - High Drift mode (ability to measure modulations, high drifting or unstable DUTs, etc.). AM (Absolute Amplitude Noise) measurements. Pulsed Measurement Capabilities. Transient Mode: measure WB Frequency, NB Frequency, NB Phase, NB Power (WB/NB being Wide Band and Narrow Band). Dual channel low-noise integrated power supplies.
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Thermal Shock Test Chamber (2 Zone)
Guangdong Test EQ Equipment co., Ltd.
- Thermal Shock Chamber: -70℃~150℃, ≤5min recovery, meets MIL-STD-810. Ideal for PCB/IC reliability testing.- ESS Environmental Chamber: Humidity 20%~98% RH, supports GB/T 2423 standards. 40% energy saving vs. competitors.- Liquid-to-Liquid Shock Tester: LN₂ cooling to -196℃, 15s transition time. For aerospace materials validation.- Thermal Cycling Equipment: 25℃/min ramp rate, 1000L capacity. JESD22-A104 compliant.- Benchtop Thermal Chamber: -65℃~150℃, 65dB low noise. Lab-use with USB data export.
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Time & Frequency Distribution Amplifiers
Brandywine offers a wide range of high quality, state of the art signal timing distribution amplifiers, all with very low phase noise. These precision timing signal distribution amplifiers offer a variety of time and frequency signals and interface formats including IRIG A, IRIG B, Have Quick, 1PPS, as well as low phase noise reference frequencies. All of our distribution amplifiers feature dual inputs with automatic failover and multiple independently buffered outputs.
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Ultra Low Noise, Rubidium Frequency Standard.
A10-M
Frequency Referencing, Calibration, Standards Lab, Production Test for Oscillator Manufacturers. A very high stability LOW NOISE 10MHz Rubidium Reference, primarily for production test of quartz oscillators and RF instrumentation frequency referencing. This industry standard 2U rack-mount instrument has a long heritage and ongoing production life for this latest 2009 version that features RS232 monitoring and control of the DPLL, locking the Ultra Low Noise OCXO to the Rubidium. Damping and Bandwidth is controlled by integrator digital gain, proportional digital gain, pre-filter order and subsample rate. Eight values of user selected bandwidth are available.
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Personal Logging Dosemeter System
05NK004
Measure personal noise levels with the Logging Dosemeter System. Kits consist of either 1 or 5 logging dosemeters with calibrator and case. Ideal for checking worker's exposure to noise, downloading data to a PC and storing the results for future evaluation.
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ATE System Power Supplies
N5700 Series
The Keysight N5700 Series delivers low noise power in a compact 1U package. Airflow moves front to back, so no additional space is required above or below the power supply in your automated test equipment (ATE) rack. Select output voltages from 6 to 600 V. For low current applications, the 750 W models provide 1.3 to 100 A. For higher current needs the 1500 W models provide twice as much current.
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Low Noise Filter Adapter
PX0107A
The PX0107A converts Dsub25 outputs to five SMB outputs with the low noise filtering capability down to 25 μVrms (20 MHz). It supports the Keysight M9614/15A.
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Distributed I/O
Schweitzer Engineering Laboratories, Inc.
Expand the I/O of SEL relays and communications processors, reduce copper in substations by transferring I/O from remote locations over fiber, and provide electrical isolation to avoid ground paths and induced noise and interference.
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Sound Level Assessment System
05NK002
Ideally equipped for carrying out Noise at Work risk assessments, as well as the majority of environmental survey work the Risk Assessment System comes with a choice of Class 1 or Class 2 logging sound meter, calibrator, case and PC download software.
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Franklin Tester Model
Model FT2
Franklin Tester Model FT-2 is designed as per IS:649 & ASTM:717 Standard to measure insulation resistivity of electrical steel sheet. It requires precision & noise free DC regulated power supply and equally distributed pressure on electrode. Franklin Tester FT-2 regulated power supply provides 0.5000V with 0.1% accuracy over load and no load. Most of national and international standard has specified only 0.5%, means FT-2 is equipped with five time better accuracy than required.
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HandyScope HS6-DIFF: 1 GS/s, 250MHz BW, 4 Channel (256MS/ch), USB Differential Digital Storage Oscilloscope, Spectrum Analyzer, Voltmeter, Transient Recorder
HS6-DIFF-1000XM-W5
*The only oscilloscope in the world that has:-* SafeGround, differential input channels that can be switched to single ended.*- CMI interface.*- USB 3.0 interface, 5Gb/s data transfer*- Lowest noise
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Clock Dividers
The Analog Devices clock divider portfolio features ultralow noise and low power consumption options to help meet your design needs.
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Three-axis Fluxgate Magnetometer
TFM1186
The Three-axis Fluxgate Magnetometer TFM1186 is a member of Metrolab's THM1176 family of 3-axis handheld magnetometers. It is a lightweight, low-power, go-anywhere fluxgate magnetometer. Outstanding noise characteristics make fluxgate magnetometers the instrument of choice for measuring minute disturbances in the local magnetic field, for example due to an iron mass or AC power-line noise. The TFM1186 has a range of ±100 µT and a resolution of 4 nT. The TFM1186 simultaneously measures all three axes of the magnetic field, so you get a true field strength reading no matter how you hold the probe. The entire instrument has been reduced to a cable with a few fat spots, which can plug directly into your PC or into a battery-powered handheld computer. 3-axis Teslameter Gaussmeter
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ATI Performance Oscilloscopes
DPO70000SX
DPO70000SX ATI Performance Oscilloscopes deliver the industry’s most accurate capture of high-speed signal behavior to verify, validate and characterize your next generation designs. Capture up to 70 GHz signals with the lowest noise and highest fidelity, ensuring the most accurate measurements of your signal’s true characteristics.
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Energizer RED Vibration Exciter for Buzz, Squeak & Rattle (BSR) Testing
Energizer Red Vibration Exciter
The Energizer RED Series is part of a family of extremely quiet vibration exciters. The Series is ideally suited for the support of subjective and objective BSR evaluations according to industry test specifications, such as GMW14011, GM7293TP, BMW PR311-2 or PSA “Specification bruit parasites”, as well as several Hyundai Engineering Standards. With availability in four unique models and sizes, the Energizer Series is expressly designed to support such evaluations, while reducing the risks of measurement uncertainty caused by unwanted vibration exciter noise occurring within the BSR test environment.
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PCI Express A/d Board
AD14-500x4-8GB-K7US
The AD14-500x4-8GB-K7US is a high performance wideband 4-channel 14-bit data single PCIe Gen3 board, that can continuously digitize four wideband signals, with four high linearity A/Ds.Designed for demanding military, medical, scientific, industrial, communications, safety and electrical power utility applications, these boards have a wideband noise figure of 10dB and 1 dB peak-to-peak ripple over the DC to 250MHz frequency spectrum (2dB p-p over DC-500MHz).
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Noise Source, 10 MHz to 26.5 GHz, nominal ENR 15 dB
346C
The Keysight 346C noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 26.5 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. Option K01 is a coaxial noise source and features coverage from 1 to 50 GHz with a 2.4 mm coaxial connector.
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5uH Line Impedance Stabilisation Network LISN - CISPR 25
TBOH01
The TBOH01 5H LISN is a device required to setup conducted noise measurements of DC-powered devices. It is designed to be used for EMC pre-testing in the frequency range of 150kHz to 110 MHz.
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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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Event Detectors
STD Series
The STD Series Event Detectors offer test specifications associated with solder joint reliability testing but can also be used for testing other types of interconnects accordingly. Like other Event Detectors, the STD series provides continuous transient resistance detection referenced to a selected threshold resistance with a high degree of electrical noise immunity.
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Rack-Mounted Timing Systems
CommSync II Family
The CommSync II family of modular systems provide GPS time and frequency outputs to meet your synchronization requirements. All systems include support for multiple input and output modules including 1PPS, IRIG, HAVE QUICK, PTTI, IEEE-1588 PTPv2, low phase noise 1, 5, and 10 MHz sine wave as well as custom outputs.These systems are available with military SAASM MPE-S GB-GRAM, SAASM Force 22E MRU or civilian C/A GPS receivers. Rubidium or OCXO oscillators provide for excellent holdover performance in the event of failure of the reference inputs. In addition, they may be configured as Distribution Time and Frequency (DTF) systems that are synchronized by an external reference. Dual Redundant systems (CommSync II & CommSync II-D) may be configured with two GPS Time & Frequency (GTF) modules and two power supply modules (AC and/or DC power) for redundancy with uninterrupted automatic switchover.
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PXI-6236, 4 AI (16-Bit, 250 kS/s), 4 AO, 6 DI, 4 DO, Bank-Isolated, PXI Multifunction I/O Module
779622-01
4 AI (16-Bit, 250 kS/s), 4 AO, 6 DI, 4 DO, Bank-Isolated, PXI Multifunction I/O Module—The PXI‑6236 is a bank-isolated DAQ device designed for current I/O. It offers analog I/O, digital input, digital output, two 32‑bit counters, and digital triggering. The digital input and outputs are compatible with 5 V TTL/CMOS 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‑6236 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PXI‑6236 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays.
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High Speed Phase Inverter - Buffer
WMA-IB-HS
The WMA-IB-HS can be used to double the output voltage of two high voltage amplifiers by driving them in bridge mode, or as high impedance input buffer while maintaining precision, high speed and low noise. Because of its high bandwidth, the WMA-IB-HS model is ideal for the Falco Systems WMA-100 or WMA-300 amplifiers. It can also be used with all other Falco Systems HV amplifiers, or even with high voltage amplifiers of another brand.
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Mid-Range Gas Filter Correlation Carbon Monoxide Analyzer
Model T300M
The Model T300M CO analyzer measures low to mid ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 2.56 meters.The energy loss through the sample cell is compared with the span reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing excellent performance from low to high range.All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T300M comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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Power Supply Testers
Qmax Test Technologies Pvt. Ltd.
Power Supply Tester is an integrated package of hardware such as AC/DC Power Sources, DC Loads, Noise Measurement Unit, and DMM etc configured as per user applications, which makes it suitable for testing wide range of Power Supplies and provide economic solution for testing AC/ DC and DC/DC power supplies and converters. The Power Supply Boards that passed in the first level of screening for Go-No Go tests will undergo a second level testing. The second level of testing measures all the key parameters of the power supply such as line regulation, load regulation, efficiency etc and check whether the results are within the mentioned limit, if not declare the UUT (Power Supply Board Under Test) as a failed one.
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Audio Generator
AG-51
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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2210A & 2211A Quartz Frequency Standards
Precise Time and Frequency, Inc.
The ptf 2210A Quartz Frequency Standard has been designed to provide a highly stable and spectrally pure frequency reference for applications requiring the ultimate in short term frequency performance.The instrument contains a double oven controlled stress compensated (SC cut) quartz crystal oscillator (OCXO) to give the ultimate in performance.Ideal for laboratory or system use, the unit provides good stability performance at lower cost and with improved phase noise.
