Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Product
Digital Sound Level Meter
KG-70
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Backlight LCD helps easy reading in dark place.MAX/MIN measurement.Wind Screen supplied to cut off wind noise affects.Frequency weighting (A/C) selectable.Time weighting (FAST/SLOW) selectable.Display Hold, and Auto Power Off
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Product
Reference Oscillator
REF Series 1.5” x 1.5” x 0.6”
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*Connectorized Package *Free Running *Low Phase Noise *Output Power to +12 dBm Available
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Product
PXI/PXIe RF Multiplexer, Dual 4-Channel, 3GHz, 75Ω, SMB
42-832A-002
Multiplexer Module
The 40-832A-002 (PXI) and 42-832A-002 (PXIe) are 75 Ohm 4 to 1 RF multiplexers with 2 banks in a single slot. They have been designed to exhibit low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The design of the 40/42-832A minimizes the injection of noise and unwanted signals into the signal path by careful attention to the mechanical and electrical design.
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Product
Multi Channel A/D Converters
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Analog Devices multiplexed channel precision A/D converters include one ADC and span 8-bit to 24-bit resolutions and throughputs from kSPS to 10 MSPS, while offering industry-leading performance in noise, linearity, and dynamic range. ADI offers a quick and easily deployed multichannel solution suited to your application’s diverse needs in speed, power, and size. Engineered to accommodate single-ended, differential, and pseudo differential inputs, our multiplexed converters offer the feature set needed for next-generation end systems.
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Product
Bench/System DC Power Supply With PowerFlex Or PowerFlex+ Regulation
QPX Series
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Wide range of voltage/current combinationsUp to 80V and up to 50A within the same power envelopeLow output ripple and noise of <3mV rms at full powerHigh setting resolution of 1mVAnalogue control interfaces for voltage and currentBench or rack mounting, front and rear terminalsUSB and LAN (LXI) interfaces with GPIB optional (QPX600DP, QPX1200SP and QPX750SP)
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Product
NI-9205, ±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module
780173-01
Voltage Input Module
±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module - The NI‑9205 performs single-ended or differential analog inputs, with four programmable input ranges for each. It is an effective combination of channel count and speed at a low price for an economical multifunction system. You can choose from four programmable input ranges. To protect against signal transients, the NI‑9205 includes up to 60 V of overvoltage protection between input channels and common. In addition, the NI‑9205 also includes a channel-to-earth ground double isolation barrier for safety, noise immunity, and high common-mode voltage range. It is rated for 1,000 Vrms transient overvoltage protection.
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Product
Volume Production Oscillators
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Volume production oscillators utilize either high performance GaAs Gunn diodes with high Q cavity designs or state-of-the-art FET devices with dielectric resonators to yield excellent phase noise and stability. These oscillators are free running with extremely high frequency and power stability. The oscillators are generally designed and manufactured for fixed frequency applications. However, fine frequency adjustments can be achieved by mechanically tuning the provided self-locking screw. While the below standard models are offered for immediate production release, custom models are also available.
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Product
Medium-Power, Broadband Amplifiers
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Our family of distributed amplifiers utilize advanced broadband design techniques to achieve solid performance in gain, flatness, noise figure and output power over a wide frequency range. The experienced design team has the know-how and tools available to take any standard product and customize it for your specific application.
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Product
Broadband Coaxial Noise Sources
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Our integrated noise modules contain all the required biasing circuitry and only need a positive voltage to activate for an easy installation. Since they typically do not contain amplification, the raw noise output from the diode is seen at the output of the module resulting in a maximum ENR of approximately 35dB. Primary applications include system built-in test and laboratory use.
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Product
NI-9205, ±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module
785184-01
Voltage Input Module
±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module - The NI‑9205 performs single-ended or differential analog inputs, with four programmable input ranges for each. It is an effective combination of channel count and speed at a low price for an economical multifunction system. You can choose from four programmable input ranges. To protect against signal transients, the NI‑9205 includes up to 60 V of overvoltage protection between input channels and common. In addition, the NI‑9205 also includes a channel-to-earth ground double isolation barrier for safety, noise immunity, and high common-mode voltage range. It is rated for 1,000 Vrms transient overvoltage protection.
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Product
Measurement Microphone System
MK224SYS
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The MK224SYS Type 1 measurement microphone system offers a cost effective option to acoustic measurements. Perfomance: 8 Hz to 18 kHz response, 50 mV/Pa sensitivity and a "A" weighted noise floor less than 14 dBA.
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Product
Band Reject (Notch) Filter Components
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precision band-pass and band reject (notch) active filters that provide high performance in a compact 32-pin DIP package, with a broad range of fixed center frequencies (fo) from 1 Hz to 100 kHz. Each filter type features a neartheoretical amplitude/phase response along with lowoutput voltage noise enabling these filters to achievea 10,000:1 or better dynamic signal range.
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Product
sbRIO-9263 , Non-Enclosed, 100 kS/s/ch Simultaneous, ±10 V, 4-Channel C Series Voltage Output Module
780876-01
Voltage Output Module
Non-Enclosed, 100 kS/s/ch Simultaneous, ±10 V, 4-Channel C Series Voltage Output Module - The sbRIO‑9263 is a simultaneously updating analog output module. It features overvoltage protection, short-circuit protection, low crosstalk, fast slew rate, high relative accuracy, and NIST‑traceable calibration. The sbRIO‑9263 module includes a channel‑to‑earth ground double isolation barrier for safety and noise immunity. Non-enclosed modules are designed for OEM applications.
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Product
Compact Accelerometer (Shock Meter)
AP2019
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Can be used as shock sensors in equipment diagnostic systems; Combination of high axial sensibility, intrinsic frequency and shock resistance; Low sensitivity to electromagnetic fields; Low intrinsic noise level.
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Product
sbRIO-9208, Non-Enclosed, 500 S/s, ±20 mA, 16-Channel C Series Current Input Module
780979-01
Current Input Module
Non-Enclosed, 500 S/s, ±20 mA, 16-Channel C Series Current Input Module - The sbRIO‑9208 is designed with industrial systems in mind. It includes a high-resolution mode with 50/60 Hz rejection to remove low frequency noise. It has high-channel density to reduce the number of modules needed, which leaves slots open for other measurement types or for reducing the overall per channel cost of the system. The sbRIO‑9208 uses a standard D‑SUB connection for use with cables and connector blocks. Non-enclosed modules are designed for OEM applications.
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Product
Precision Condenser Microphone
377B11
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Performance:Nominal Microphone Diameter:1/2 CharacteristicPressureOpen Circuit Sensitivity: 50 mV/Pa50 mV/PaInherent Noise<15 dB(A) re 20 Pa<15 dB(A) re 20 Pa Dynamic Range (3% Distortion Limit)>143 dB re 20 Pa>143 dB re 20 Pa EnvironmentalTemperature Range (Operating)-40 to +248 F-40 to +120 C Temperature Coefficient of Sensitivity (+14 to +122F (-10 to +50C))0.005 dB/F0.009 dB/C
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Product
Cryocoolers
DS Mini
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The DS Mini cryocooler brings gas bearing technology to the mini-cryocooler market. The DS (Dual Split) features dual-opposed pressure wave generator pistons and a split cold head to reduce exported vibration and acoustic noise. The optional passive balancer will further reduce cold head vibration for sensitive applications. Both the cold head and wave generator can be mounted in any orientation. Using gas bearings in the pistons as well as the displacer, the DS maintains the core technologies of the well-established integral CryoTel MT, CT and GT cryocoolers. The DS Mini represents an advantage over flexure bearings due to its higher power density, while still offering a longer lifetime compared to rotary compressors and contact seals.
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Product
Phase Meter
SD1000
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The SD1000 phase meter offers superb accuracy with a wide range of signal conditions. Conventional phase meters are easily upset when small levels of noise and distortion are present - the result is often unstable and incorrect phase readings. The SD1000 overcomes this by using Discrete Fourier Analysis (DFT), this process rejects any noise and distortion without the need for tracking filters.
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Amplifiers
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low noise wideband current amplifiers (current to voltage converter) with a high gain and wide frequency band.CA261F2 and CA-461F2 are low noise voltage amplifiers which realize high precision signal processing and high density mounting by using single-in-line package which has six-surface strict shield.
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Product
TMR Current Sensors
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MultiDimension Technology Co.,Ltd.
An open-close current transducer, high sensitivity and signal-to-noise ratio TMR chips are used in the design, which based on Tunneling magneto resistance effect. The transducer has a built-in temperature compensation and nonlinear compensation circuit, which can accurately measure DC, AC and pulse current. The transducer has many benefits ,such as high precision, wide bandwidth, low power consumption, excellent isolation performance and so on. Besides, the design of open-close structure makes it easier to install and unload.
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Product
Trailer Wiring Buddy 7 Pin Flat
222
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*Each signal from vehicle emits a unique tone *Electric brake control signal illuminates red LED *Loud beep can be heard over shop noise *Time Saver! Just apply brakes, right/left turn signals, running lights, engage reverse & 12 Volt Charging voltage *Greatly reduces time spent verifying vehicle trailer wiring *Very simple & easy to use - saves time!
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Product
L-Band RF Tuner and 2-Channel 200 MHz A/D with Virtex-6 FPGA - XMC
Model 71690
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- Accepts RF Signals from 925 MHz to 2175 MHz- Programmable LNA boosts LNB (low noise block) antenna signal - levels with up to 60 dB gain- Programmable analog downconverter to I + Q baseband signals - 4 to 40 MHz bandwidth- Two 200 MHz 16-bit A/Ds digitize the I + Q signals synchronously- Supports Xilinx Virtex-6 LXT and SXT FPGA- 2 GB DDR3 SDRAM or 32 MB of QDRII+ SRAM- Sample clock synchronization to an external system reference- PCI Express (Gen. 1 & 2) interface, up to x8- Clock/sync bus for multimodule synchronization- VITA 42.0 XMC compatible with switched fabric interfaces- Optional user-configurable gigabit serial interface- Optional LVDS connections to the Virtex-6 FPGA for custom I/O- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
PXI/PXIe RF Multiplexer, Single 4-Channel, 3GHz, 50Ω, SMB
40-872A-001
Multiplexer Module
The 40-872A-001 (PXI) and 42-872A-001 (PXIe) are 50 Ohm 4 to 1 RF multiplexers with 1 bank in a single slot. They have low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The injection of noise and unwanted signals into the signal paths of the 40/42-872A has been minimized by careful attention to the mechanical and electrical design.
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Product
Midi Logger
GLT400
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*Transferring data to PLC via Modbus/TCP protocol*DC Power only for -20 to +60 operation*Supports WEB server, FTP server and FTP client network functions for remote monitoring and controlling*High Isolation inputs to ensure signals are not corrupted by noise from other channels*Connect as a remote terminal unit of GL840
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Product
Mid-Range Gas Filter Correlation Carbon Dioxide Analyzer
Model T360M
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The Model T360M CO2 analyzer measures Carbon Dioxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO2 filled chamber and a chamber with no CO2 present. The light path then travels through the sample cell, which has a folded path of 1.28 meters.The energy loss through the sample cell is compared with the reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing excellent performance over a wide concentration range, making this instrument an ideal choice for CO2 reporting requirements associated with dilution CEMS.All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T360M comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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Product
Low Noise Amplifiers
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Our range of ITAR Free, Low Noise Amplifiers (LNAs) cover a variety of applications but are primarily suited to airborne, maritime and ground based radar systems. LNAs are primarily intended to minimise added noise whilst providing high gain so design focusses on the parameters associated with the noise response of the amplifier. They are usually the first amplifier in the Radar detection chain and will have the lowest noise figure.
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Product
Low Noise Voltage Preamplifier
1201
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The Model 1201 Voltage Preamplifier with Remote Gain Programming Option (06) is usable in both computer controlled and maual applications requiring uncompromising performance.
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Product
Measuring Wheel
B20-S
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Simple and light Measuring Wheel B20-s can measure up to 10,000m at 10cm graduation.The counter is indicated in 5 digits and has reset button. When we use Leak Noise Correlator LC-2500, we need to input the between pick-up sensors.
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Product
Directional Mic.
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Our directional microphone helps you to find sources of noise easily and intuitively without any special knowledge.
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Product
Sound Level Meters
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A sound level meter is a measuring instrument used to assess noise or sound levels by measuring sound pressure. Often referred to as a sound pressure level (SPL) meter, decibel (dB) meter, noise meter or noise dosimeter, asound level meter uses a microphone to capture sound. The sound is then evaluated within the sound level meter and acoustic measurement values are shown on the display of the sound level meter.
