Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Product
Hydrophone
RESON TC 4033
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The TC4033 provides uniform omnidirectional characteristics within the full frequency range of 1Hz to 140kHz. The Typical sensitivity of -203dB re 1V/µPa and the capacitance of 7nF, ensure an excellent signal to noise ratio, thereby allowing TC4033 to be used with extension cables with only a limited reduction in sensitivity. The TC4033 offers excellent acoustic characteristics and durability, which makes it ideal for a wide range of applications and for calibration purposes.
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Product
2-Axis High-Resolution Laser Axis Board for VME
10898D
Laser Board
The 10898D 2-axis high-resolution laser axis board provides the same resolution as the Keysight 10897D high-resolution laser axis board with increased slew rates and reduced noise. The increased stage velocity limits and low noise compared to previous laser systems offer premium positioning repeatability and accuracy for advanced applications such as IC fabrication equipment.
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Product
Partial Discharge Testing Equipment
PD-Analyser
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This is an ‘All in One’ solution for testing and analysing partial discharges in the insulation of high-voltage transformers, cables, GIS and electric machines. The DIMRUS ‘PD Analyser’ help diagnose their insulation state and find any type of defects very effectively.It can be used for temporary or constant monitoring of partial discharge in medium and high voltage systems and cables of any rated voltage.The PD Analyser is the most useful device for condition estimation of high-voltage insulation. This multipurpose device is designed for -Partial discharge measuring in high-voltage insulation at a high noise level.Fast detecting of the defects in different high-voltage equipment and identifying how dangerous they are.
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Product
UP Converter
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The products have a big Dynamic Range, are highly linear and have low Noise Figures to keep the best possible quality of the signals to be converted. For this reason an internal filter for secondary wave suppression is implemented.
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Product
Matched Transistors
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Analog Devices offers dual and quad transistors with excellent matching characteristics. Offset voltages, temperature drift, and hFE matching are individually tested to data sheet specifications. Device performance is guaranteed over industrial and military temperature ranges. Each of these devices is an excellent choice as an input stage for an amplifier or in log/antilog circuits. ADI’s matched transistors offer low noise and high gain, with characteristics approaching an ideal transistor.
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Product
5uH Line Impedance Stabilisation Network LISN - CISPR 25
TBOH01
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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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Product
Online Noise Monitor
AWA5636-3
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Hangzhou Aihua Instruments Co., Ltd.
Complies with IEC 61672 Class 2. Uuse in Noise On-line Monitoring, Connect to Noise Screen
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Product
Probes, Clamp-On
EM-6987 | 1 KHz – 110 MHz
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The EM-6987 is capable of measuring signals and noise superimposed on power currents up to 300 A from DC to 400 Hz. Intermodulation effects on current probe output are also negligible.
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Product
Ultra-Low Noise, Precision Voltage Reference
ISL21090
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The ISL21090 is an ultra-low noise, high DC accuracy precision voltage reference with a wide input voltage range. The ISL21090 uses Renesas' advanced bipolar technology to achieve sub 1.0µVP-P (1.25V option) 0.1Hz to 10Hz noise with an initial voltage accuracy of 0.02% (2.5V option).
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Product
Mixed Signal Oscilloscope - 1-6 GHz, 4 Analog Plus 16 Digital Channels
MSOX6004A
Oscilloscope
1 6 GHz4 analog plus 16 digital channels Easily view and isolate signals on the 12.1-in capacitive multi-touch screen with Zone triggering and 450,000 wfms/s update rate Make more precise measurements with 115 Vrms noise floor at 1 mV/div (1 GHz)Get performance measurements anywhere with the portable 6-in deep size Quickly see analysis details with standard histogram and color grade View signal integrity with jitter and eye diagram analysis options
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Product
47~862MHz FTTH CATV Optical Receiver
H9122
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai H9122, 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 optical receiver.
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Product
Comb Generator
CG 50/500
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The main application of Conducted Comb Generator is to quickly verify conducted emissions test setups. And the most important application is trouble conducted measurements using an ISN.reference signal source Noise Generators Signal Generators
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Product
Booster and In-line Amplifier
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Amonics' EDFA range adopts unique design to produce maximum signal gain and saturated output power while maintaining low noise figure, enabling test capabilities in system or component level manufacturing and characterizing processes, as well as facilitating highly demanding R&D applications. The compact turnkey benchtop or 19" rackmount unit incorporates a user-friendly front panel housing with a LCD monitor display, key switch, power control knob and optical connectors. An integrated RS232 computer interface enables easy control, diagnostic functions and data acquisition.
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Product
USB-8452, 3.3 MHz I2C, 50 MHz SPI I2C/SPI Interface Device
781964-03
Interface Module
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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Product
Accelerometers
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Columbia Research Laboratories
The force balance accelerometer has a classical critically-damped, second-order frequency response. There is no peaking in the response but simply a smooth roll-off above the natural frequency. This property along with the excellent characteristics of the "HP" torquer design makes Columbia accelerometers the best choice for demanding applications where precise DC and near-DC measurements are needed in demanding shock and wide band vibration environments. Columbia force balance accelerometers are available to cover virtually all applications. Low noise, high output units can be used for seismic structure motion studies while miniature, high range versions are optimum for measuring more violent high G environments encountered in many industrial, aircraft and missile applications.
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Product
Trace-Level UV Fluorescence SO2 Analyzer
Model T100U
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Teledyne Advanced Pollution Instrumentation
The Model T100U Trace-level SO2 analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network. It uses the proven UV fluorescence principle, and is designed to allow ultra-sensitive SO2 measurements while still meeting the requirements for use as a US EPA compliance analyzer.The analyzer uses both the light and dark phases of the pulsed UV light source to continuously detect and correct for electronic noise, giving exceptionally stable and sensitive performance. A separate UV detector allows the instrument to continuously correct for variations in lamp intensity. Exceptional stability is achieved with the use of an optical shutter to compensate for PMT drift, and a reference detector to correct for changes in UV lamp intensity. A hydrocarbon "kicker" and advanced optical design combine to prevent inaccuracies due to interferents.
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Product
IQ Demodulator
IQD Series
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*Capable of receiving RF and LO frequency inputs *Output from DC to 500 MHz *Internal low noise oscillator Internal reference *Buffered demodulator *Balanced IQ *Optimized for low EVm *Optional internal Reference Detect Switch (EM Research RDS Series) *Up to 250 mega-symbols per second
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Product
USB Controlled High Precision Audio Test Interface
AudioConnect 4×4
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AudioConnect 4×4 is a high accuracy 4-in, 4-out audio interface specifically audio test and measurement. It offers digital and analog audio in and out at any user-specified sampling rate up to 200kHz, and a high signal to noise ratio and wide frequency response, making it suitable for the most demanding measurement applications. Controls are simple – a single USB connection and a power indicator – all other typical soundcard controls that are not used for audio test applications have been eliminated to make operation and calibration simple with no room for error. AudioConnect 4×4 is supplied fully calibrated.
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Product
PXI Chassis And Remote Controllers
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We offer both PXI & PXIe chassis and controllers that support all of our PXI switching and simulation modules as well as those from third parties. There is a choice of up to 21-slot 3U chassis with options to reduce acoustic noise and modules that can be powered from a DC source.
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Product
VECTOR-GUN HANDHELD DIRECTION FINDING ANTENNA SYSTEM
HFDF
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National RF's Type HFDF active directional antenna system consists of a high gain RF amplifier coupled to a tunable Faraday shielded loop antenna. Several loop antenna assemblies are available to provide coverage of frequencies in the HF and low VHF spectrum. Due to the nature of a Faraday shielded loop, the antenna exhibits a sharp null through the diametric center of the loop. This null is used to determine the direction of incoming radio signals or to locate electrical noise being radiated from some source. The internal high gain amplifier is used to compensate for the inherent inefficiency of the actual loop at the operating frequency. Overall, the system dynamic response is about +6 dB as compared to the dynamic response of a dipole. To aid in the direction finding process on strong signals, an internal 30 DB attenuator is provided. As the loop antenna presents a bi-directional response, tri-angulation may be required to eliminate the ambiguous signal direction. The line of site of the incoming signal is determined by listening for a signal null on the receiver or by watching the receiver’s S-meter.
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Product
Power Supplies and Sources
DC Power Supplies
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DC power supplies are commonly used in electronics design, battery charging, electrical vehicle, research labs and education sectors. UNI-T offers both programmable and non-programmable power supplies with features such as low ripple and noise, constant voltage/current, overload protection, and more.
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Product
Class 2 Integrating Sound Level Meter
Castle Sonus GA216I
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The Castle Sonus GA216i is a feature packed instrument, fully compliant with IEC 61672:2002 Class 2. This meter gives simultaneous Leq and peak measurements for assessments to the Control of Noise at Work Regulations 2005. It has a high-specification measurement microphone and is cased in tough, crack resistant ABS plastic. To comply with the Control of Noise at Work Regulations 2005, this Class 2 Sound Level Meter enables you to assess Noise in the workplace at fantastic value.
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Product
Microphone Preamplifier
426B31
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Performance:Nominal Microphone Diameter:1/4" Frequency Response:3.98 to 126000 Hz3.98 to 126000 10.0 to 126000 Hz10.0 to 126000 HzElectrical Noise (A-weight)3.8 TEDS CompliantYes
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Product
NI-9216, 8-Channel, 400 S/s Aggregate, 0 Ω to 400 Ω, PT100 RTD C Series Temperature Input Module
783863-02
Temperature Input Module
8-Channel, 400 S/s Aggregate, 0 Ω to 400 Ω, PT100 RTD C Series Temperature Input Module - The NI‑9216 is a resistance temperature detector (RTD) input module. You can configure the NI‑9216 for two sample rate modes: high sample rate or high resolution. The NI‑9216 is compatible with 3‑ and 4‑wire RTD measurements, and it automatically detects the type of RTD (3-‑or 4‑wire) connected to the channel and configures each channel for the appropriate mode. The module provides per channel current excitation. The NI‑9216 features calibration and includes a channel‑to‑earth ground double isolation barrier for safety, noise immunity, and a high common-mode voltage range.
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Product
RVDT Rotary Position Sensors
RV Series
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The NewTek is a family of RVDT rotary position sensors for industrial applications. RVDT technology is known for reliability and ruggedness in harsh environments. The non-contact design allows for extremely long operational life and reliability and eliminates internal components that might wear or degrade over time. With a non-contact measurement, RVDTs offer good noise performance with excellent repeatability. The NewTek RV series is available in two sizes – The RV 8-30 is a size 8 (0.75 inch diameter) and the RV 11-30 is a size 11 (1.06 inch diameter).
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Product
Transimpedance Amplifiers
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Advanced Science and Novel Technology, Co., Inc.
Broadband transimpedance amplifier for low noise receiver side applicationsFeatures automatic input offset control and a peak detector8GHz of analog bandwidth for limiting of input data60dB of transimpedance differential gain15pA/sqrtHz of input referred noise density (0.1 to 10GHz)CML output interface with 50 termination and 225mVp-p single-ended swingSingle +3.3V power supplyPower consumption: 250mWExhibits low jitter and limited temperature variation over industrial temperature rangeUnpackaged bare die
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Product
20 GHz Signal Source
VCO Series
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The SC5510A and SC5511A are VCO-based, synthesized signal sources with very low phase noise and an amplitude control of 0.01 dB throughout its -30 dBm to +15 dBm output power range. By utilizing a unique multiple phase-locked loop architecture, phase spurs are kept below -70 dBc across the entire tuning range, even at 1 Hz step resolution. Download the data sheet to see how the impressive features and specifications of these modules make them stand out when compared to other small modular synthesizers. These 20 GHz signal sources include an additional, independent RF2 channel with a tunable frequency range from 100 MHz to 3 GHz and a tuning resolution of 25 MHz. The extra channel makes the modules suitable for either single-stage RF conversion systems or dual-stage image suppression up/down converter systems. Both modules make great general-purpose laboratory signal sources where demanding low phase noise and signal purity are required. They are both ideal choices as an integrated clock source for fast DAC and ADC applications, especially those that require variable sampling rates. Full implementation instructions, GUI, driver software, and example code are provided with each module.
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Product
Ultra-low Noise Phase Inverter - Buffer
WMA-IB-LN
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The WMA-IB-LN 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 and ultra-low noise. The WMA-IB-LN model has been designed specifically for the Falco Systems WMA-200 high voltage amplifier. Two WMA-200 amplifiers combined with one WMA-IB-LN provide unprecedented noise performance and output voltage range.
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Product
16-CH 16-Bit 250 KS/s Simultaneous Sampling DAQ Cards
PXI-2022
Data Acquisition Module
ADLINK"s PXI-2022 is a simultaneous-sampling multi-function DAQ card to meet a wide range of application requirements for PXI bus computers. The device can simultaneously sample 16 AI channels with differential input configurations in order to achieve maximum noise elimination.
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Product
64-CH, 12/16-Bit, Up to 3 MS/s Multi-Function PXI Modules
PXI-2200 Series
Multifunction I/O
ADLINIK PXI-2204, PXI-2205, and PXI-2206 are high-density, high-performance multifunction PXI modules. These devices can sample up to 64 AI channels with various gain settings and scan sequences---making them ideal for high-density analog signals with various input ranges and sampling speeds. These devices also offer a differential mode for 32 AI channels to achieve maximum noise elimination. The PXI-2200 series also features analog and digital triggering, 2-CH 12-bit analog outputs with waveform generation capabilities, 24-CH programmable digital I/O lines, and 2-CH 16-bit general-purpose timers/counters.
