Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Phase Locked Oscillators
Phase locked oscillators (PLO) utilize state-of-the-art planar circuits, three-terminal devices and dielectric resonator technology to generate high-quality microwave signals at lower frequencies. Frequency multipliers, amplifiers and filters are used to extend the low frequencies for higher frequency requirements. The standard offering covers the frequency range of 2 to 110 GHz and provides both internal and external reference options. The frequency stability and phase noise are dependent on the oscillator reference type.
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Sound Level Meter for Automotive – Car Noise Emission Inspection
HD2010MCTC
The level of noise produced by vehicles shall comply with standards prescribed by international regulations. During car inspections, horns and exhaust devices must be in good condition and comply with the requirements.
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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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Single Axis AC Magnetic Field Sensor
MGC-1A
Macintyre Electronic Design Associa
The MGC-1A is a low noise high sensitivity single axis AC magnetic field sensor used for the measurement of audio frequency fields. Because of its innovative design, the MGC-1A amplitude response is insensitive to the frequency of the field over its 30 Hz to 10 kHz frequency band. Accuracy at 1 kHz is ±1%, and the amplitude response stays within 2 dB peak-to-peak over the bandwidth.
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Reporting Tool for Dynamic Signal Analyzer
m+p eReporter
m+p eReporter is the powerful reporting tool of the m+p Analyzer dynamic signal analyzer. It provides test engineers with comprehensive capabilities for browsing and viewing data, copying & pasting data to ActiveX applications, importing test data from many third-party noise & vibration systems and automating repetitive tasks. This full functionality is available without any measurement hardware connected.
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Noise Dose Meters
Here you will find a full range with an industrial standard noise dose meter to suit every requirement. With the portable noise dose meter you can carry out measurements quickly to gain control of a situation or to set the device to take timed measurements. The noise dose meter is important for all industries, especially by using it as a mobile device which is able to assess office stress levels or street noise levels.Often problems arise from noisy neighbors or if bars and restaurants are in residential areas and produce noise levels after 10pm in excess of what local laws permit. We, of course, can assess which noise dose meter you require in relation to the issue you have and the relating laws. We also have microphone extension cords, tripods, calibrators and calibration certificates for most models of noise dose meter.
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Low Noise Current Preamplifier
SR570
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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Gravity Sensors
iGRAV
Superconducting persistent currents (i) produce the most stable relative gravity meter in existence. Superconducting persistent currents (i) produce the most stable relative gravity meter in existence. Super stable: Drift less than 0.5 µGal/month Scale factor constant to better than 1 part in 104 for years! Super precise: 1 nanoGal (10-3 µGal) in frequency domain 0.05 µGal in the time domain for 1 minute averaging. Super low noise: 0.3 µGal/(Hz)½.
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Biaxial Linear Accelerometers
Columbia Research Laboratories
The line of Biaxial Force Balance Linear Accelerometers available are 2-axis versions of our General Purpose, Low Noise and High Temperature, and High Performance Single axis Linear Accelerometers.
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Generators
Vibration Shock
Software Vibration shock is used for testing specimen resistance to vibration impact. This software is a part of the software complex ZETLAB VIBRO, supplied together with vibration control systems ZET 017-U. The software enables generation of impacts with pre-set parameters and noise presence within a specified frequency range. The software is activated via ZETLAB control panel and VCS menu.
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RF Signal Generators
As Rigol's RF first signal source, the DSG3000 series offers standard AM/FM/ØM analog modulation, as well as options for I/Q modulation and I/Q baseband output. The instrument is available with maximum frequencies of either 3 GHz or 6 GHz. Featuring a high signal purity with phase noise measuring <-110dBc/Hz@20kHz (typical) and a wide output range of -130dBm to +13dBm, the DSG3000 RF signal generator has standard pulse modulation with an on/off ratio of up to 80dB, with optional pulse train generator available. The DSG3000 series also has an amplitude accuracy of <0.5dB (typical).
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V-Band Low Noise Amplifier 50 to 75 GHz, 35 dB Gain, 5 dB NF
SBL- 5037533550-1515-E1
50 to 75 GHz, 35 dB Gain, 5 dB Noise Figure V Band Low Noise Amplifier for IEEE 802.11.ad WiGig. Model SBL-5037533550-1515-E1 is a low noise amplifier with a typical small signal gain of 35 dB and a nominal noise figure of 5 dB across the frequency range of 50 to 75 GHz. The DC power requirement for the amplifier is +8 VDC/150 mA. The mechanical configuration offers an in-line structure with WR-15 waveguides and UG-385/U flanges.
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Ultra-Low Noise Filter, 42 V / 105 MA, 50 Ω
N1298B
The N1298 Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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96-CH 12-Bit 3 MS/s Ultra High Density Analog Input PXI Module
PXI-2208
ADLINIK PXI-2208 is an ultra high-density, highperformance analog input module. This device can sample up to 96 AI channels with various gain settings and scan sequences, making it ideal for dealing with ultra high-density analog signals with various input ranges and sampling speeds. These devices also offer a differential mode for 48 AI channels to achieve maximum noise elimination. The PXI-2208 also features analog and digital triggering and 24-CH programmable digital I/O lines. Like all the other members in the PXI-2000 family, the PXI-2208 is able to perform analog input at full speed. Multiple modules can also be synchronized through the PXI trigger bus. The auto-calibration feature adjusts the gain and offset to a specified accuracy, eliminating the need to calibrate the modules by adjusting trimpots.
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Software
Blaze
Blaze software is the ideal data analysis and reporting tool for Industrial Hygiene and Safety professionals. From simple, concise compliance reports to powerful detailed data presentations, Blaze excels in supporting various exposure sampling methods and interfaces with the Spark family of personal Noise Dosimeters, the SoundTrack LxT Sound Level Meter and the HVM100 Human Vibration Meter. From instrument setup to presentation-ready reports to exposure record management, Blaze makes noise and vibration exposure monitoring more convenient and productive
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Power Supplies
CP-500T
Delivering essential power at highest efficiency for its users, with a single 120mm fan, this power supply remains extremely cool. The honeycomb structure offers great air ventilation and air flow that increases the efficiency of the 120mm fan and dramatically lowers the noise level. Cost effective without losing power efficiency.
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Cross Flow Cell
Working electrodes for flow cell are mounted on blocks of PEEK. This resin protects the electrodes from external noise and allows researchers to utilize them regardless the content of mobile phase of HPLC because of their hard, organic solvent-resistance. Glassy carbon is usually chosen for the redox reaction study on liquid chromatography. Platinum, Gold, Carbon paste and Nickel electrodes are utilized for special purposes. Thin Layer Cell has been used as a electrode for research such as flow injection analysis (FIA) and the HPLC.
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Lock-in Amplifier/Preamplifiers
Detecting and measuring AC signal''s amplitude or phase buried in noise, as high sensitive AC Voltmeter with noise immunity.This equipment is used by many customers like at the fields of physics and science including spectroscopic analysis.
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Noise Analysis Software
noiseLAB
noiseLAB is a professional software recording and analysis package for making Type 1 Precision measurements to international standards. Precision Recorder: noiseLAB makes high quality recordings of up to 8 channels of sound. Precision Analysis of: Sound Level (Fast, Slow, Impulse, Taktmak. Custom Time Constant, Leq). Statistical Values (L1, L5, L10, L50, L90, L95, L99). Octave Spectra (1/1, 1/3, 1/6, 1/12, and 1/24th octave).....
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Noise Reduction Water Leak Detector
DNR-18
With digital noise reduction that removes intermittent sounds like barking dogs and passing vehicles. DNR-18: the advanced digital CPU eliminates intermittent interfering noises, like passing vehicles, people talking, and pedestrian footsteps.
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Microwave Amplifiers
MShU Series
*Ultrawide Operating Frequency Range*Small Size*Low Noise Figure*Low Power Consumption
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Birefringence Measurement Technology
Hinds Instruments Birefringence Measurement technology has been adopted by industry leaders world wide to measure birefringence and characterize stress birefringence in materials with unsurpassed accuracy, resolution and repeatability. Capable of measuring optical retardation at 0.001nm resolution with noise floors as low as 0.005nm, these systems are robust, dynamic and scalable to fit the demanding requirements of your application. We provide measurement systems across the light spectrum (DUV, VIS and NIR) and are able to measure virtually all optical materials.
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4-CH 14/16-Bit Up to 2 MS/s Simultaneous-Sampling Multi-Function DAQ PCI Express Cards
DAQe-2000 Series
ADLINK DAQe-2000 series products are simultaneous-sampling multi-function PCI Express DAQ cards to meet a wide range of application requirements. The devices can simultaneously sample 4 AI channels with differential input configuration in order to achieve maximum noise elimination. They also provide 2-CH 12-bit analog outputs with waveform generation capability, which can be performed together with analog input functions. If more analog input or output channels are required, multiple cards can be synchronized through the SSI (system synchronization interface) bus. This makes the DAQe-2000 series ideal for the stimulus/response test.
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Mobile sound Level Meter
SoundMeter
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.
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PMC Compatible Wizard Interface
PMC-Wizard
The PMC-Wizard is intended for use in ultra high-speed bidirectional point-to-point data transmission systems. The primary application is to provide very high-speed I/O data channels for point-to-point baseband data transmission over controlled impedance media of approximately 50 Ω. The maximum rate and distance of data transfer is dependent upon the attenuation characteristics of the media, and the noise coupling to the environment
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High Voltage Linear Power Supplies Bipolar 4-quadrant, Analog/Digital/Local Control, Ultra Low Ripple/Noise
Series BOP-HV
The Kepco Model BOP 500DM and BOP 1000DM are high voltage power sources, up to 500V or 1000V, respectively. These combine the capabilities of fast programmable power supplies with a Class A output stage, which can respond bidirectionally from zero. The BOP-HV can be operated in either a "voltage stabilizing" or "current stabilizing" operating mode (selectable by a front panel switch). These power supplies offer ultra low noise and ultra low ripple at the output and are MIL-STD-461 compliant.
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Overview of features and functionality
NoiseCheck Software
NoiseCheck is essentially SoundCheck without a stimulus editor, as it is designed for manufacturing the noise made by your product. It is a powerful piece of software, ideal for both R&D and production line acoustic measurements of fans, blowers, motors, gears, bearings, pumps and other electromechanical products.
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Personal Dosemeter System
05NK003
Measure personal noise levels with the Dosemeter System. Kits consist of either 1 or 5 non-logging dosemeters with calibrator and case. Ideal for checking worker's exposure to noise and adhering to Control Of Noise At Work Regulations.
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Ultimate Performance Tunable Laser
TSL-770
Santec’s all new TSL-570 capitalizes on Santec’s 33 years’ experience in tunable laser manufacture. The TSL-570 is a high performance tunable laser with a wide tuning range and an output combining high power and high signal-to-noise ratio. It uses a new optical cavity design with precise speed control up to 200 nm/s and sub-picometer resolution and accuracy.
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AI Virtual Assistant Performance Analyzer
Vocalyzer Test Suite
The vocalyzer test suite has been developed to enable black-box evaluations and benchmarking of AI powered virtual assistants. The goal is to help highlight gaps in performance with measurable, repeatable and shared benchmarks. For the initial task of assessing the hearing capabilities of speech recognizer engines, vocalize.ai has leveraged expertise from the world of audiology; the branch of science that studies hearing, balance and related disorders. Working with talented audiologists, the company has identified procedures and modified them to work with virtual assistants. Audiology tests such as Speech Recognition Threshold (SRT) and Speech In Noise (SIN) are supported by a cloud based utterance database and are readily available for product benchmarking.
