Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Sound Level Meters
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Castle Group Ltd are a long standing leading manfacturer of noise measuring equipment, particularly Sound Level Meters for industrial noise monitoring. Our equipment is ideal for performing noise at work assessments to The Control of Noise at Work Regulations 2005.
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Product
Charge Coupled Device (CCD) Image Sensors for Space and Ground-Based Astronomy
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(CCDs) for Space science, Ground-based Astronomy, and Earth observation applications with an impressive record of successful deliveries to a wide range of customers over 40 years.All Teledyne e2v devices can be supplied partially or fully customised to fit the application and achieve the best possible system performance. CCD image sensor design, manufacture, test and characterisation are carried out in-house enabling control from start to finish. Multi-polysilicon, multi-metal and back-illumination options are available for high resolution, high sensitivity and very low noise.
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Product
Low Noise Current Preamplifier
SR570
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Stanford Research Systems, Inc.
The SR570 is a low-noise current preamplifier capable of current gains as large as 1 pA/V. High gain and bandwidth, low noise, and many convenient features make the SR570 ideal for a variety of photonic, low temperature and other measurements.
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Sound Level Meter, 30 dB, 130 dB, 1.5 dB, 0.1 dB, 0 °C, 40 °C
72-942
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Compact Digital Sound Level Meter measures less than 9" in length, including the windscreen, yet provides selectable response time and frequency weighting. It is perfect for sound system testing, speaker system measurement and environmental noise level monitoring.
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Precision Current Sources
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HighFinesse Precision Current Sources have been developed for experiments and quantum technologies in the areas of cold-atom and solid state physics. The linearly regulated BCS (Bipolar Current Source) and UCS (Unipolar Current Source) series deliver highly stable, low noise source currents for high precision magnetic field control. The current output is floating or is on a used defined potential. Ultrafast response to control signals and trigger functions, clear grounding, connection and signal isolation schemes make the integration of the current sources into complex experimental systems easy.
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Ultra Low Level DC Voltage Amplifiers
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The EM A10 is a low level amplifier module for sensitive measurements, data collection and systems, where signals below 1 nanovolt may be measured. It is ideal for the input unit for precision voltage measuring systems, requiring voltage sensitivity for measuring low noise and low impedance sources. The noise level of the A10 is equivalent to a perfect resistor of about 20 ohms. When used with a digital voltmeter, steady one nanovolt digits may be displayed, with a response time constant of less than a second. The input voltage stability of the A10 is very high, with the drift around a nanovolt per degree C. The input connectors are made from pure copper. The input impedance is very high, and is time dependent, determined by the loop gain.
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Partial Discharge Tester (Dry Type)
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Partial Discharge testing is a way of detecting voids or imperfections in insulators that would lead to overheating and breakdown under normal operating conditions. Due to the nature of the signal being measured, this test is very susceptible to electronic and RF noise and a proper corona-free properly isolated test chamber is required.
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Product
Ethernet/LXI digitizerNETBOX 16 Bit High Speed Digitizer - 250 MS/s on 16 Channels, 16 Single-Ended Inputs
DN6.442-16
Digitizer
The digitizerNETBOX DN6.44x series allows recording of up to 24 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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Preselectors and Switch Filter Banks
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Our preselectors and switch filter banks offer low noise figure, high dynamic range, state-of-the-art filter rejection with high channel-to-channel isolation front ends, realized in compact building blocks, designed in custom form factors. Applicable markets include: EW, missiles, radar, communications and space.
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Bench Power Supply, Linear, Adjustable, 1 Output, 0 V, 60 V, 0 A, 2 A
72-2695
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The 72-2695 from Tenma is a single channel adjustable bench top power supply. It is a digitally controlled industrial grade power supply with load for a long time. This compact design power supply has intelligent temperature controlled fan, low noise and low ripple. It also features knob lock function to avoid improper operation. This power supply has load regulation ≤0.01% +2mV (voltage), ≤0.1% +5mA (current) and line regulation of ≤0.01% +3mV (voltage), ≤0.1% +3mA (current). The setting accuracy (25°C ±5°C) is ≤0.5% +30mV (voltage), ≤0.5% +5mA (current).
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Product
Fast USB Strain Module
FSU-SSB
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The FSU-SSB is a fast, compact, high precision strain bridge input module delivering high resolution readings over USB and communicated directly to a PC. It is aimed at dynamic applications that require high speed measurement.It delivers high speed measurements of 4800 samples per second at 13 bits noise free resolutio
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Product
FD-11637, 8-Channel Strain/Bridge Input Device for FieldDAQ
785641-01
Strain/Bridge Input Module
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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Sound Level Meters
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Sound level meters measure sound pressure level and are commonly used in noise pollution studies for the quantification of almost any noise, but especially for industrial, environmental and aircraft noise.
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Noise and Vibration Tester
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SKF Condition Monitoring Center
High tech analysis and measurement such as frequency analysis (FFT) and further advanced analysis pinpoints faults. Spectral masks help to optimize the bearing performance in the particular customer application.
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Millimeter Wave Amplifiers
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Ducommun offers Low Noise (ALN), High Power (AHP), Full Waveguide Band (AFB) and General Purpose (AGP) amplifiers to cover the frequency range from 18 to 96 GHz. These amplifiers utilize thin-film and microelectronics manufacturing techniques and are discrete and/or MMIC PHEMT devices based. These amplifiers feature low noise, high output power, single DC power supply and wide operation temperature range. The amplifiers are offered in two categories, standard and custom-built. Both standard and custom-built amplifiers are equipped with various RF interface, including standard waveguide or coaxial connector for convenient system integration. The optional input and output integrated isolators are available as an option to further improve the port return loss.
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Product
Noise Control And Acoustical Consulting Services
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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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Product
Low-Mid Frequency Analyzer
LMFA-21
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Amfax introduce the latest PXI based High Performance Low and Mid Frequency Analysis System operating from 100Hz TO 2MHz with an extremely low noise floor. This high accuracy measurement instrument utilizes the National Instruments Function Generator and Flex Digitizer to optimize your frequency related product performance. Using the industry standard PXI platform enables us to offer the system a fraction of the cost of other typical two box solutions.
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Product
Lock-In Voltage Preamplifier
SR552
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Stanford Research Systems, Inc.
The SR552 Voltage Preamplifier is designed to work with SRS lock-in amplifiers, providing gain where it is needed most?right at the experiment. The preamplifier minimizes noise and pickup in the connecting lines and can reduce measurement time in noise-limited experiments.
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Power Supplies
CM Series
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The CM-300 is perfect for those with smaller computer cases – tiny in size, but huge in effectiveness with an anti-corrosive nickel plated chassis. Within this power supply is an 80mm silent cooling fan designed to cool at maximum efficiency with the lowest noise level. And to power your CPU, the CM-300 comes with an 8 pin Xeon connector ready in a tube-tide design to keep all your wires tidy. The CM-300 is the ideal combination of power efficiency in a sleek body kit.
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Product
Noise Source, 1 GHz up to 50 GHz
346CK01
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The Keysight 346CK01 is the ideal companion to Keysight´s noise figure solutions when working on high frequency applications. Since it is broadband (1 GHz to 50 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, which are reflections of the test signals. This is a coaxial noise source with a 2.4 mm coaxial connector. ENR typically 20 dB at 1 GHz, decreasing to typically 7 dB at 50 GHz.
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Product
Ethernet/LXI digitzerNETBOX 14 Bit High Speed Digitizer - 400 MS/s on 20 Channels, 20 Single-Ended Inputs
DN6.448-20
Digitizer
The digitizerNETBOX DN6.44x series allows recording of up to 24 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
64-CH 12/16-Bit Up to 3 MS/s Multi-Function DAQ PCI Express Cards
DAQe-2200 Series
Data Acquisition Module
ADLINK DAQe-2200 series are highdensity and high-performance multi-function DAQ PCI Express cards. The devices can sample up to 64 AI channels with different gain settings and scan sequences. It makes them ideal for dealing with high-density analog signals with various input ranges and sampling speeds. These devices also offer differential mode for 32 AI channels in order to achieve maximum noise elimination.
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DC Power Supply
◎PW-4063R
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*Use Toroidal Transformer. Low EMI & High EMS.*Triple output, 0-32V/0-6A X2 and 5V/3A .Max. 400Watts*Tracking operation. Max. output 64V/6A on tracking series or 32V/12A on tracking parallel.*4 display, Green LED shows Voltage and Red LRD shows Current. Easy to read.*Compact design. G.W. 9Kgs only. Easy to handle.*The resolution of PW-4063R as high as 0.01v and 0.001A.*Provide 4Pcs 10turns micro adjust VR for Voltage and Current adjustment. Easy to operate.*Very low Ripple & Noise, less than 0.4mVrms. Very suit for precise measurement.
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Product
Realtime Analyzer ENA
RAE
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Advanced sound recorder/analyzer with the latest environmental noise measurement technology. Used for a wide scope of application in sound system engineering.
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Product
Ultra Narrow Linewidth, CW TI: Sapphire Laser
SolsTiS
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Award-winning SolsTiS is a next generation continuous-wave Ti:Sapphire laser designed to meet the needs of pioneering scientists looking for high performance, ease of use, system flexibility and reliability. This fully automated, compact system features a completely sealed, alignment-free cavity with hands-free operation, an unprecedented tuning range, unrivalled power, and the ultimate narrow linewidth, low noise output. SolsTiS has options of high power output up to 5W, linewidths <50 kHz and amplitude noise of less than 0.05%. SolsTiS is made to order giving you the ability to specify your linewidth, output power and wavelength range. Fully integrated accessories such as beam pick-off and fiber coupling are available.
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Product
Interface
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Renesas offers industry-leading devices to enable efficient and reliable communication for industrial control, networking and computing applications. Dual protocol transceivers, voltage level translators, I2C Buffers, wide operating voltage range RS-232 transceivers, and RS-485/422 devices with the highest noise immunity and ESD protection in small packages are available to support high-speed data transfer and a variety of configurations to fit your applications.
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Product
(125×150×30.5mm) High Power Multi-ports Output CATV FTTP EYDFA Module
EATV5400x-FM05
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai EATV5400 series is a low noise, high performance, high power multi-ports EYDFA module, which is specially designed for CATV system. It offers a flexible and low-cost FTTP solution for CATV large area coverage of metropolises and medium-sized cities.
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47~862MHz FTTH CATV AGC Optical Receiver
H9112G
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai H9112G, the operating bandwidth of 47~862MHz, Products with high sensitivity optical receiver tube and Huatai special low noise matching circuit,Whether used in analog television or digital television, have high reception sensitivity and excellent intermodulation distortion index. is a low power, high performance, cost-effective triple play, FTTH CATV AGC optical receiver.
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Mobile sound Level Meter
SoundMeter
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SoundMeter turns your iOS device into a handheld sound level meter (SLM) with support for exponential-time-weighted sound level (Lp) and equivalent sound level (Leq) measurements with various time and frequency weightings. The built-in signal generator tool can be used for generating calibration test tones, noise, chirps, or other periodic signals. SoundMeter also offers additional tools via in-app purchase, including a Noise Dosimeter and a whole or 1/3-octave real-time analyzer.
