Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Product
Ethernet/LXI digitizerNETBOX 16 Bit High Speed Digitizer - 250 MS/s on 4 Channels, 4 Single-Ended Inputs
DN2.442-04
Digitizer
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
28/45 GHz Dual Optical Channel DCA-M with Option CDR
N1092B
Oscilloscope
High accuracy, low cost solution for optical waveform analysis including solutions for 8.4 through 64 GBaud, very low noise and jitter, fast sampling rates for high throughput, and integrated clock recovery available.
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Product
Dual-Channel Power Supply
DPS16
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The DPS16 is a dual-channel power supply with very low output noise and no ripple. The output current can be up to 200 mA and has a programmable current limit. The 4 wire capability provides an excellent load regulation. Because the DPS16 is a fully linear design the output noise is exceptionally low while there are no ripple components as usually seen with switched mode designs. The unit has voltage and current read back on both channels with 16-bit resolution.
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Product
In-Line 2-Module In-Circuit Test System; i337x, Series 5i
E9988E
In-Circuit Test System
Short wire fixturing eliminates problems commonly found with long wire fixturing, such as noise and deterioration of test stability. This translates into transportable, repeatable and stable tests on your i3070 Series 5i, even if you need to deploy tests halfway across the globe, or on different manufacturing sites.
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Product
Active Voltage Rail Probe
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Voltage rail probes are designed specifically to probe a 50 Ohm DC power/voltage rail. The probe has large built-in offset, low attenuation (noise), and high DC input impedance. Built-in offset and low attenuation permit the power/voltage rail to be offset in the oscilloscope by its mean DC voltage with high oscilloscope gain (sensitivity) to achieve a noise-free view of small signal variations. The high DC input impedance eliminates loading of the DC rail.
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Product
Sound Velocity Sensor
miniSVS
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The Valeport miniSVS uses digital "time of flight" technology to provide the lowest noise, highest accuracy, best resolution sound velocity data available.
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Product
Digital Audio Snake System
OmniSnake
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The OmniSnake consists of a Stage Box that converts microphone/line-level analog inputs to a multiplexed digital signal, and a companion Base Unit that de-multiplexes to provide individual outputs. Digitizing the analog audio at the source eliminates the potential for ground loops, noise interference and crosstalk. Each Stage Box has 8 inputs, and two Stage Boxes can be linked together via coax to form a combined 16 channels, which is carried over coaxial cable to the Base Unit.
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Product
Zero-Drift Op Amplifiers
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The zero-drift amplifiers from Analog Devices combine both auto-zero and a chopper to self-correct continuously for dc errors over time and temperature, enabling the amplifier to achieve microvolt-offsets and nanovolts per degree Celsius drift. By design, the zero-drift amplifier has no 1/f noise nor does it suffer from long-term drift.
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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
GPS Disciplined Oscillator
GDX Series 3.5” x 2.5” x 0.6”
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*Connectorized Package *1 PPS Input from GPS Receiver *Up to Four Fixed-Frequency RF Outputs *Optional Loss of Lock Output *Optional Holdover Alarm Output *Low Phase Noise
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Product
Arbitrary Waveform Generator
SDG7000A
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SIGLENT’s SDG7000A is a family of dual-channel Arbitrary Waveform Generators that feature up to 1 GHz bandwidth, a maximum sample rate of 5 GSa/s, and 14-bit vertical resolution. It can generate arbitrary waveforms point by point with a maximum 2.5 GSa/s sample rate and vector signals with a maximum of 500 MSa/s. It also has the ability to generate a variety of signals such as continuous wave, Pulse, Noise, PRBS patterns, and a 16-bit digital bus. It supports the generation of complex signals such as modulation, sweeping, bursting, and dual-channel copying/coupling/tracking and superposition. The outputs are user selectable for differential or single-ended connections and support a maximum output range of ± 24 V. The instrument can ensure a large amplitude under high-frequency which eliminates an external power amplifier in some applications and addresses a wider range of requirements.
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Product
Data Logging Class 1 Sound Level Meter
Castle Sonus GA116L
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This Castle Sonus Data Logging Sound Level Meter provides you with a cost effective solution to making noise measurements for Noise at Work and Environmental Noise Assessments.
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Product
Channelized Up-Converter
UPCV Series 5” x 2.5” x 0.6”
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*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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Product
Silicon Detectors
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Through the photovoltaic effect, detectors provide a means of transforming light energy to an electrical current. The root of the theory behind this phenomenon is a small energy gap between the valence and conduction bands of the detector. When light, with enough energy to excite an electron from the valence to the conduction band, is incident upon the detector, the resulting accumulation of charge leads to a flow of current in an external circuit. Since light is not the only source of energy that can excite an electron, detectors will have some amount of current that is not representative of incident light. For example, fluctuations in thermal energy can easily be mistaken for light intensity changes. A variety of these "non-light" contributions are present and, when summed up, make up the total noise within the detector.
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Acoustic Calibrators
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When you're ready to take noise measurements, it's strongly recommended that you perform a field calibration using an Acoustic Calibrator. You should calibrate your sound meter before you start to measure, and then once you've finished you should perform a reference check against the calibrator and make note of any drift that has occured. You can find out more about performing Field Calibrators by reading this post and watching a short video.
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Product
Low Voltage DC / Battery Powered HV Amplifiers
WMA-01 And WMA-01LF
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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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Product
33 GHz Optical Probe
DPO7OE1
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The DPO7OE1 is a 33 GHz, low noise, broad wavelength optical probe with optical reference receiver (ORR) performance for 28Gbaud PAM4 and PAM2 (NRZ). The DPO7OE1 can be used as a conventional Optical-to-Electrical (O/E) converter for wide-bandwidth optical signal acquisition. The DPO7OE1 provides an FC/PC or FC/APC optical connection for Tektronix DPO/MSO70000 C/DX/SX model oscilloscopes for high-speed optical signal verification.
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Product
Multifrequency Clock Synthesizer - 6U VPX
Model 5790
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- Simultaneous synthesis of up to five different clocksEight SMC clock outputs- Typical phase noise: -105 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 to 100 MHz- Four quad VCXOs allow selection from 16 different base frequencies- Output clocks of 1, 2, 4, 8, or 16 submultiples of VCXO base frequencies- Output clock frequencies between 50 and 700 MHz- Control and status over the VPX backplane
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Product
Infiniium V-Series Oscilloscope: 33 GHz, 4 Analog Channels
DSOV334A
Oscilloscope
33 GHz analog bandwidth4 analog 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 low noise floor (2.09 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 Improve your testing with the broadest range of jitter, trigger, analysis and protocol tools (featuring Precision Probe)
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Product
Precision DC Power Module, 60V, 20A, 300W
N6764A
Power Module
The Keysight N6764A is a 300 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.
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Product
Digital Multimeter, 8.5 Digit
3458A
Digital Multimeter
The Keysight 3458A has a 30-year industrial-benchmark legacy for remarkable DC accuracy and stability. The redesigned 3458A multimeter also has standard lab 8.5-digit precision with leading-edge DCV linearity accuracy, lowest internal noise, and it is RoHS compliant.
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Product
Photomultiplier
PMT-102
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Photo Multiplier Tube with a range of 185 - 875 nm. Has a built in power supply. Built in low noise amplifier with a gain of x1 and x100.
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Product
Voltage Controlled Oscillators
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Mercury Systems’ VCOs (Voltage Controlled Oscillators) offer predictable consistency, rugged design and reliable performance. Our VCO products will meet your application’s most demanding stability and low phase noise requirements; featuring wide tuning bandwidth up to an octave. With custom designs and space qualified versions, trust Mercury to provide the VCOs for your next design.
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Product
Up & Down Converter/RF Suite
DNA
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DNA is one of the most effective phase noise and frequency stability analysers on the market. It is based on a unique digital architecture that reduces thermal noise and obtains top performance in terms of near phase noise, with a limit set by a user reference clock. DNA also includes in-built oscillators for advanced autonomous operation.
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Wideband Distributed Amplifiers
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Analog Devices GaAs MMIC-based wideband distributed amplifiers cover the dc to 65 GHz frequency range in various ultrawide bandwidths. Our design catalog includes low noise amplifiers, power amplifiers, and driver amplifier designs to meet your needs in applications such as electronic warfare, radar, electronic countermeasures, optical applications, and instrumentation. To meet diverse design requirements, some of our LNAs also offer internal-self biasing that requires only a signal drain voltage to operate.
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Spectrum Analyzer
SPA Series
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The SPA-series high performance, low cost, easy to use, portable spectrum analyzers are ideal for a pre-compliance laboratory. All three models feature a wide frequency range and low noise floor to increase system sensitivity and system to noise ratio. An advanced, easy to use interface makes your work simple by putting the features you need at your fingertips.
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Product
Phase Noise Measurement Up To 125 GHz
S930321B
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S930321B enables phase noise measurements using a PNA or PNA-X vector network analyzer. Simplify your measurement workflow by measuring phase noise on the same connection as your network analysis measurement of 2-port active devices up to 125 GHz, without needing to connect a spectrum analyzer or harmonic mixer.
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Product
Ultra-Low Range Gas Filter Correlation Carbon Monoxide Analyzer
Model T300U
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The Model T300U Trace-level CO analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network. Using IR absorption with a Gas Filter Correlation Wheel, the T300U is designed to allow ultra-sensitive CO measurements while still meeting the requirements for use as a US EPA compliance analyzer.The optical bench is enclosed in a temperature controlled oven, dramatically decreasing instrument noise and drift. The objective and field mirrors in the sample cell are gold plated to maximize signal to noise performance, while a temperature-controlled Nafion dryer on the inlet minimizes water interference caused by ambient humidity changes. Periodically, the T300U seamlessly corrects its baseline by routing the sample through a heated catalytic CO scrubber. This Auto Reference function corrects zero drift and reduces the effect of interferences.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 T300U 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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Product
Powered VME430 Crates
9U VME430 6021
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WIENER VME 6021 crate series is the newest generation of generation CERN VME430 compliant VME crates for large size 9Ux400mm cards. Designed for applications in nuclear and high energy physics data acquisition, beam line control and test instrumentation it combines superior mechanical quality with lowest noise power supply technology.
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Product
Isolated Analog Input Expansion Board
MSXB 084
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The MSXB 084 Isolated Analog Input Expansion Board provides isolated analog inputs for DAP systems. Use these boards to eliminate ground currents – a potential source of noise in your measurement and control signals – and eliminate timing skew.
