Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Bluetooth Enabled Signal Conditioners I/O Modules
microBlox
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Acromag's microBlox uB Series I/O modules offer a compact, high-performance solution for interfacing sensors and field devices with data acquisition systems. uB signal conditioning modules are ideal to isolate, filter, convert and amplify a wide variety of signal types for test, measurement and control systems. Just plug uB modules into 4, 8, or 16-channel backpanels in any mix for a high-density analog I/O interface. Channel-to-channel isolation provides optimal noise and surge protection from ground loops, spikes, and high common mode voltages.
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Product
High-Speed Precision SMU (100 FA, 60 V, 1 MSa/s)
PZ2120A
Source Measure Unit
The Keysight PZ2120A is a cost-effective, high-speed precision source / measure unit (SMU) featuring best-in-class narrow pulse width, fast Digitizer Mode, and seamless current measurement ranging. It enables narrow-pulsed measurements and fast dynamic measurements with a wide dynamic range for a wide range of emerging applications such as vertical-cavity surface-emitting laser (VCSEL) optical devices and integrated circuit (IC) testing. In addition, its low measurement noise performance enables measurements with shorter aperture times, and its seamless current measurement ranging function enables a wide dynamic range and eliminates range change time, which improves test throughput.
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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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Benchtop Amplifiers
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Benchtop, broadband driver amplifiers are designed and manufactured by utilizing the most advanced PHEMT or MMIC devices, thin film technologies, and an improved DC power supply to deliver a high output power and a superior gain flatness and low noise performance. The standard offering focuses on general purpose applications and covers the frequency range of 1 to 110 GHz. However, custom designs are also offered to meet any user’s specific needs.
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Burst-Generator
SFT 1420
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The test generator SFT 1420 simulates quick transient noise interference as they are defined in the standard IEC / EN 61000-4-4. The single pulses show a very short rise-time (5 ns) and due to this a wide RF-spectrum up to 300 MHz. RF interferences are the result.
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BJT Voltage Preamplifier
SIM911
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Stanford Research Systems, Inc.
The SIM910 and SIM911 are low-noise, programmable preamplifiers which are ideal for a wide range of small signal applications. The primary differences between the two models are their input impedance and input noise.
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Product
Dual Voltage Buffer with Current Drive
BUF-01
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The BUF-01 Voltage Buffer is a dual channel buffer capable of driving up to 50 mA of current on each channel at up to ±10 V output. The buffer has a 2nd order low pass filter with 3 dB point of 119 kHz to remove high frequency noise. The unit’s differential inputs are built to withstand high DC over-voltages up to ±50 VDC and greater than ±100 V transients. Gain of the unit is 1 allowing for minimal insertion issues.
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Multi-Stage Injection Measurement System
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Common rail fuel injection system in diesel engines is a fuel injection system which improves output performance and fuel consumption by purifying exhaust gas (soot, NOX) and reducing noise and vibration.The fuel is completely burned by being sprayed in the form of mist which burns easily at high pressure, and furthermore the combustion timing is optimized with electronic control.In this common rail injection system, injection timing by an electric controlling has great effect on the performance of an engine. So measurement of injection amount, injection rate, and injection timing are very important. FJ-8000 series Multi-Stage Injection Analyzer is able to measure those parameters for every 1 cycle by simulating in the environment which is near to an actual vehicle running.
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Product
Active Probe
Sonic
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PMK Mess- und Kommunikationstechnik GmbH
The Sonic® 4000 active probe offers best-in-class performance and is easy to use to make in-circuit measurements. The DC to >4GHz bandwidth, high input impedance, low noise and ±8V dynamic range make the Sonic 4000 the ideal probe for use with any oscilloscope or other 50Ω measurement system. The Sonic® 4000's ±12V input offset capability extends the probe's input voltage range.
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Pulsed ESR/EPR: Pulsed Injection-locked IMPATT Amplifiers
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Insight Product Company offers pulse injection-locked IMPATT amplifiers for pulse ESR/EPR experiments. Pulsed injection-locked amplifier incorporates IMPATT diode, ferrite input/output isolators, circulators, and pulse modulator. Only DC power supply, RF input signal, and external trigger signal are required to operate the amplifier. Output phase noise parameters are very close to the noise parameters of the input RF signal.
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DC Power Supply
PW-3063R
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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-3063R as high as 0.1v and 0.01A.*Very low Ripple & Noise, less than 0.4mVrms. Very suit for precise measurement.
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Speaker Component Checker
Cab Driver
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Whirlwind Music Distributors, Inc.
The CAB DRIVER is a test device for checking the operation of the speaker components within enclosures. A pink noise signal source is sent through pushbutton selectors to an assortment of speaker connectors, including Speakon NL8 and NL4, 1/4" TS and banana jacks. Speaker/ Polarity/ Impedance/ Pink Noise Generator
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Product
Burn-in Room and Aging Test Chamber
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Isolated type of burn-in room features: ●Separate the product and loading area, easy to control temperature and maintain. ●Temp. range: 40-70ºC±3/±5ºC, ●Temp. constancy: ±0.5ºC ●Uniformity: ±3ºC ●Test frame materials: painted stainless steel or a combination of forming aluminum ●Insulation: with PU foam ( doors with double glazing ) insulation, so that the internal temperature is not subject to external factors, to achieve power saving effect ●Product hierarchy placement, Selection of layer height in accordance with the requirements, convenient access ●Computer monitoring system is optional. ●Noise level:≤75dB Application Suitable for all kinds of electronic products, especially for products with heating characteristics Product and loading area should be separated Large-scale production
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Product
Low Noise Amplifier
DLNA8-0.1-18G-2223
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Low Noise Amplifier, Frequency 1~18GHz, Gain 24dB, Noise figure 3.2dB, P-1dB 22dBm, SMA Female
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3D Sound Intensity Analysis Software
DS-0225A
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Finding out the position where the noise is occurring, and grasping the state of acoustic propagation are important ways to find effective noise countermeasure or improvement of acoustic environment.
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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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Stepper Motor Drivers
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Minimize noise and vibration in your stepper motor designs with our QuietStepTM adaptive stepper motor drivers. We offer a complete lineup of stepper motor drivers for office automation, industrial, and automotive applications. Our advanced QuietStepTM solutions use proprietary algorithms to reduce torque ripple and current distortion. To minimize ripple current for the various operating conditions, QuietStepTM adaptive stepper motor drivers perform on-the-fly adjustments to the amount of fast decay during a pulse-width modulation (PWM) cycle. This adaptive feature improves system performance, reduces audible motor noise and vibration, and increases step accuracy.
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Measurement Power Amplifier
Qam
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The amplifier is DSP controlled, with a very straightforward operation. Included is a white/pink noise signal generator. The internal signal module provides low crest noise signals to be able to reach high power levels from sound sources or electromagnetic shaker. External input ofsignal is equally possible, with spectral linearisation or without. This can be used for music, RASTI or any other signal
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3207a GPS/GNS Frequency and Time Reference
GlobalTyme2
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Precise Time and Frequency, Inc.
The ptf 3207A GlobalTyme2 GNS Receiver introduces a new level of advanced capability from a second generation, based on the highly successful ptf 3203A and ptf 3204A GlobalTyme receivers.The unit is both a frequency standard and a time standard and has been used as a precision frequency reference with low phase noise, in satellite communications applications around the world.
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Low Noise Triple Band Voltage Controlled Oscillator
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This Low Noise Triple Band Voltage Controlled Oscillator was designed to meet a specific customer requirement. The VCO cover the 3300 to 4700 MHz frequency range in three bands. The output power is +9 to +12 dBm with an integrated buffer amplifier to minimize load pulling. The three bands are selected using standard TTL control.
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Broadband Amplified Noise Modules
NC2000/4000 Series
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The NC2000 Series amplified noise modules are an excellent choice for high-level noise modules mounted on a circuit board. The NC2000 Series modules are housed in 24, or14-pin dual-inline packages. The NC4000 series modules are housed in a 40-pin module that cover similar noise bands to the NC2000, but have higher crest factor, and 60 dB of TTL controlled attenuation.
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Product
sbRIO-9237, Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module
781209-01
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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VHF/UHF Handheld Signal Location Antennas
Type NVF-2
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The Type NVF-2 series of handheld directional antennas are used to locate interfering signals or noise in either the 420 – 470 MHz (Type NVF-2A) or the 900 MHz ISM band or cellular telephone bands (Type NVF-2B). Both models incorporate a solid reflector positioned behind a resonated half wave driven element, both elements being mounted on a fiberglass rod with an integral pistol grip. The configuration of the reflector and driven element are such that a deep null in the signal being received will occur when the antenna is pointed in the direction of the signal being radiated. A T-pad resistive attenuator is also incorporated in the antenna mounting enclosure to aid in the direction finding process on very strong signals or when excessive reflections present multiple returns.
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Product
60W Dual Output Power Supply, Two 8V, 3A or 20V, 1.5A
E3646A
Power Supply
Keysight basic DC power supplies offer essential features for a tight budget. The single & dual output, 30-100 W GPIB E3640 series provide small, compact size for bench and system use; low output ripple and noise; and built-in measurements and basic programmable features with GPIB and RS232 interface. The Keysight 54W, multiple output E3646A is a clean, reliable power supply for general purpose applications, and combine convenient benchtop capabilities with flexible system features in a compact, multi-output package.
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Product
Simulation Transport Vibration Table
CX-M120
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Shenzhen Chuangxin Instruments Co., Ltd.
CX-M120 Simulation Transport Vibration Table was applicable to toys,furniture,gifts,cera-mics,packaging and other products to simulate the transport tests.Comply with the U.S. and European transport standards and have characteristic with low noise,reasonable structure,durable,etc.Basic Standard:Following The EN.ANSI.UL.ASTM.ISTA International Trans-port Standard.
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Lightning Surge Simulators
LSS Series
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A simulator to reproduce “High energy induced lightning noise” which is induced by potential change on the ground, or done to power lines or telephone lines as result of lightning current.This immunity test is required by major standards including IEC61000-4-5 and JEC 210/212 and is widely used in many industries.
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Thermal Receipt Printer
URP-PT803
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The 58mm/80mm Thermal Receipt Printer offers top/front paper loading, fast 260mm/s printing, low noise, LED indicators, and multi-OS support.
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Bench Power Supply, Single, Adjustable, 2 Output, 1 V, 15 V, 60 A
72-7655
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High current switch mode power supply with remote sensing and control.*Bright 3 digit dual LED displays*Simultaneous display of output voltage and current*Excellent load and line regulation*Low ripple and noise*Overload (constant current limiting), short circuit, over temperature and OVP protections*Variable speed thermal static control fan for cooling*Highly efficient active power factor corrector*Front panel banana jacks for loads up to 5A*Rear panel binding posts for loads up to 60A*12-month limited warranty *view Terms & Conditions for details
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Tapping Machine
BAS004
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The BAS004* is used to simulate foot fall noise in a manner that is well controlled and reproducible so that measured results can be replicated and compared with other measurements.
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Product
Sport Sensor Range
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DHE (Differential Hall Effect) sensors give an output when subjected to a changing magnetic field. The field is set up by a magnet inside the sensor body and changes when ferromagnetic teeth are passed beneath the sensor (no magnets are required in the target). To improve noise resistance, the sensor has two Hall effect elements and only responds to changes in magnetic field strength corresponding to tooth passing frequencies above 15Hz. As each tooth passes the sensor, the digital state of the output changes
