Noise Bridges
examine antenna's capability to recieve and/or transmit wireless rf signals.
See Also: Bridges
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Product
Bridges
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Equip your testing environment with portable, precise Wheatstone bridges and Kelvin double bridges from Transcat. The Wheatstone bridge is a device containing a divided bridge circuit for taking highly accurate resistance measurements. It captures the value of an unknown resistance, in comparison to known resistors within the circuit. Precision bridges provide exact resistance measurements in the miliohms (m_) to megohms (Mohm) range within their specified accuracies. We offer portable Kelvin double bridges, which are forms of the Wheatstone, designed to measure low resistance – with high accuracy. Transcat also stocks individual resistors, which provide resistance standards in low to high values. They operate in conjunction with potentiometers or bridges.
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Product
Noise Reduction Water Leak Detector
DNR-18
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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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Product
sbRIO-9237, Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module
781028-01
Strain/Bridge Input Module
Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module - The sbRIO‑9237 includes all the signal conditioning required to power and measure up to four bridge-based sensors simultaneously. The module provides strain or load measurements with zero interchannel phase delay. It also has 60 VDC isolation and 1,000 Vrms transient isolation, providing high‑common‑mode noise rejection and increased safety. You can program the sbRIO‑9237 for use with half-bridge and full-bridge sensors with built-in excitation. The four RJ50 jacks provide direct connectivity to most torque or load cells and offer custom cable solutions with minimal tools. Non-enclosed modules are designed for OEM applications.
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Product
4-20mA Bridge AmplifierR
90416
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This miniature, on-board, transducer amplifier is capable of supplying excitation voltage and amplifying millivolt signals from strain gage based transducers.
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Playback And Noise Simulation
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Our systems make sounds and vibrations perceptible – from the pure, aurally accurate playback of binaural recordings to the realistic reconstruction of sound fields and background noise.
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8-Ch, 24-Bit, 25.6kS/s, Quarter Bridge Input IDAQ Module
iDAQ-873
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High resolution (24-bit)Quarter-bridge supportedSynchronization along with other iDAQ modulesMultiple trigger modes for flexible configured acquisition timingBuilt-in digital filter for higher SNR
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Product
Noise Activated Warning Sign
SoundSign
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The SoundSign Noise Activated Warning Sign is a visible, effective way to warn workers and staff of high noise levels.
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Product
Low Noise Amplifiers
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Chengdu KeyLink Microwave Technology Co., Ltd.
KeyLink's low noise amplifiers typically exhibit noise figures below 5.5dB and output 1dB compression points up 8dBm. These amplifiers are economical choices for general purpose applications. KeyLink's low noise amplifiers can be categorized as follows.
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Product
SCB-68A, Noise Rejecting, Shielded I/O Connector Block
782536-01
Terminal Block
68-Pin Female Screw Terminal to 68-Pin Female D-SUB, DIN-Rail, Shielded I/O Connector Terminal Block - The SCB-68A provides a shielded I/O connection for interfacing I/O signals to plug-in data acquisition devices with 68-pin connectors. This Terminal Block combines with shield cables to provide low-noise signal termination. The SCB-68A incorporates a completely redesigned mechanical enclosure with a magnetic removable lid, DIN-rail mount compatibility, and a resettable fuse. It is compatible with single- and dual-connector Multifunction I/O with 68-pin connectors. The SCB-68A also includes two general-purpose breadboard areas and an onboard cold-junction compensation sensor.
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Product
Bridge Device and GPIO Port Expander
SPI-to-I2C
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The CP2120 compact SPI-to-I2C bridge and general purpose port expander device can be easily added to a system to solve interface compatibility problems and add more GPIO when required.
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Product
Abnormal Noise Detection System In-Line Tester
MV-6000B
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This product sets criteria found with waveform analysis software, and runs automatic judgment in-line.
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Product
3D RF Noise Measurment System
EMI-360
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3D RF Noise Measurement System EMI-360 to realize the new EMC measurement.EMC measurement is possible to realize a low-cost and time reduction.
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Product
Phase Noise Measurement Solution, 50 kHz to 110 GHz
E5505A
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The Keysight Technologies E5500 Series of phase noise measurement solutions offers the most flexible set of measurements on one-port VCOs, DROs, crystal oscillators and synthesizers. Two-port devices, including amplifiers and converters, plus CW, pulsed and spurious signals can also be measured. The E5500 measurements include absolute and residual phase noises, AM noise, and low-level spurious signals. The stand-alone instrument architecture easily configures for various measurement techniques, including the PLL/reference source technique, residual and FM discriminator methods.
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Product
Noise Figure Meters
H5M Series
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*Frequency range from 10 MHz to 4/20 GHz*Noise Ratio and Gain measurements*Frequency converter measurements with a fixed or external heterodines*Built-in thermostatic YIG preselector*High measurement speed*Extend the NFA solution up to 50 GHz with special downconverter unit*SCPI Language Compatibility
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Product
SNR Noise Generator
CNG-EbNo
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The CNG-EbNo is a fully automated precision signal to noise (AWGN) generator that sets, and maintains a highly accurate ratio between a user supplied carrier and internally generated noise, over a wide range of signal power levels and frequencies. The internal AWGN meter provides repeatable SNR waveforms for accurate signal generation. The instrument gives system, design, and test engineers in the telecommunications industry a single tool to generate precision signal to noise ratios. These signals are used to compare theoretical BER to SNR ratios, found in "waterfall" type graphs, with measured values from the DUT to evaluate different modulation schemes. Users can obtain higher yield through automated testing, plus increased confidence from repeatable, accurate test results. Standard units can be modified for specific customer requirements. Please consult the factory for pricing and availability of these requests.
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Low Noise Differential Preamplifiers
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Provide a high gain amplification to 1MHz with an AC output derived from a very low noise FET instrumentation amplifier. Each model has fixed gain settings of x1 (0dB), x10 (20dB), x100 (40dB) and x1000 (60dB) over a selectable bandwidths of 100Hz, 1kHz (HP), 3kHz, 30kHz, 100kHz and 1MHz (7000 model only). Noise referred to input is 7nV√Hz and common mode rejection is >100dB at 1kHz. Momentary pushbutton switches are provided that control coupling, bandwidth, gain and channel on/off selections. BNC connectors are provided for single-ended and differential input, ac output, and dc output (optional) connections.
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Noise and Vibration Testing
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Electronic Systems of Wisconsin, Inc.
ESW's unique Noise & Vibration Test Systems come fully equipped with the latest industry features. The on-screen operator display in our testers make it easy to set-up, read, track and record your noise or vibration information. We work directly with you to determine the best solution that will work for your application. Our data logging make sure that important data is stored and available for download for future reference. ESW's design engineers work to make sure the testing interface is easy for your operators to use. We work closely with our customers to make sure that your unique testing needs are met. Please see the slideshow below to see some of our Noise & Vibration Testers.
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Product
Low Noise, High Performance, FTTP High Power Multi-port Optical Amplifier with a Gain Spectrum Band
MX5800 Series
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Each output port for the optical amplifier has built-in high performance CWDM. Every external up-link optical port of the optical amplifier can conveniently connect with an OLT. Each of the 1550nm (CATV)’s output optical ports will multiplex 1310/1490n’s data stream from an external OLT, reducing the quantity of the components and improving the performance and reliability of the system.
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Product
GPR Bridge Inspection Equipment
BridgeScan
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Geophysical Survey Systems, Inc.
BridgeScan™ is a complete, affordable GPR system that is an effective tool for quickly determining the condition of aging bridge decks, parking structures, balconies and other concrete structures. The system is also used to obtain accurate concrete cover depth on new structures.
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Product
Dual, Low Noise, Coaxial Cable Optimized
DCOAX
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Very high precision, three-terminal capacitance measurements can be affected by the self-inductance of the test cables, mainly at higher capacitance values. Magnetically induced noise can also reduce the quality of measurements. The cable now offered by Andeen-Hagerling both minimizes these problems and provides a way to standardize the residual self-inductance.
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High Density, Low Noise, Floating Low Voltage Power Supply System
PL500 Series
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The WIENER PL500 is a high density, low noise, floating low voltage power supply system. The PL500-Series has been designed to power lowest noise electronics with medium to high currents (10A to 500A current/channel range) over long distances in voltage or current controlled mode. Operating in either un-sensed or sensed mode the dynamic behavior can be set internally or by software for short, medium or long distances.
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Ultra-Low Phase Noise Amplifiers
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When phase noise is critical, turn to Mercury’s line of low phase noise amplifiers. Taking full advantage of the industry’s best device technology, these parts are designed to meet the toughest requirements. Through Mercury System’s advanced production capabilities, phase noise can be accurately measured—even during environmental tests, such as vibration.
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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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Bridge Devices
USB
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*Royalty free Virtual Com Port (VCP) drivers*Simple GUI based Xpress configurator for configuring, programming and customizing applications*No USB expertise required*Seamless compatibility with most operating systems*UART, SPI, I2C/SMBus and I2S interface options available*Fastest way to add USB Turn key, no firmware development needed
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Product
Noise Monitoring Station
HD2011NMT
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HD2011NMT is a remote control Noise Monitoring Station with meteo parameters acquisition. It is designed to be part of a network of noise monitoring terminals or a stand alone unit.
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Product
Noise Figure Analyzer, Multi-touch, 10 MHz to 3.6 GHz
N8973B
Low-Frequency Noise Analyzer
The N8973B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8973B.
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Active Noise Cancellation
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ams analog and digital Active Noise Cancellation (ANC) solutions deliver class leading ambient noise reduction, significantly improving sound quality for portable consumer devices.
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Phase Noise Analyzer
NXA-6
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This new NXA-6 is a sea-change in Phase Noise Test Systems. Making both residual and absolute noise measurements out to 6 GHz, this self-contained instrument uses either internal or external references with cross correlation for maximum dynamic range.
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Product
Low Noise Pre-Amplifiers
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Low Noise Pre-Amplifier and companion external low noise amplifier (LNA) are used to amplify low level microwave signals. The Pre-Amplifier contains an AC/DC power supply, internal low noise amplifier, and a bias tee to source a DC bias voltage on the RF input connector.To overcome cable loss between the test antenna and the Pre-Amplifier assembly, a remote low noise amplifier (LNA) is mounted directly onto the 10 GHz antenna. A bias tee inside the Pre-Amplifier chassis powers the remote LNA through the coax cable interconnecting the pre-amplifier and the 10 GHz test antenna.
