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Noise

a signal's fluctuation other than that desired.

See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH


Showing results: 2086 - 2094 of 2094 items found.

  • Chemiluminescence Ammonia Analyzer​​​​

    Model T201 - Teledyne Monitor Labs

    The Model T201 combines a specially configured chemiluminescence analyzer with an external thermal converter to give stable and repeatable NH3 measurements at very low levels. In addition, the T201 provides simultaneous values for NO, NO2, and NOx concentrations. The T201 is ideal for trace ammonia monitoring applications in ambient air as well as in clean rooms and make-up air units. Optional zero and span valves allow automatic, unattended calibration checks.The Model T201 achieves its remarkable stability by means of an AutoZero valve which measures and corrects for zero noise. Multiple self-checks are performed continuously to insure maximum up-time while an innovative sample path, plumbed with specially conditioned materials, preserves the NH3 sample and reduces interferents to a minimum. 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 T201 comes with the Numaview™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.​​

  • Mid-Range Gas Filter Correlation Carbon Monoxide Analyzer​

    Model T300M - Teledyne Monitor Labs

    The Model T300M CO analyzer measures low to mid ranges of carbon monoxide 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 CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 2.56 meters.The energy loss through the sample cell is compared with the span 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 from low to high range.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 T300M 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. ​​

  • Gas Filter Correlation Carbon Dioxide Analyzer

    Model T360 - Teledyne Monitor Labs

    The Model T360 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 2.56 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.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 T360 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​.​​​

  • ​Mid-Range Gas Filter Correlation Carbon Dioxide Analyzer​

    Model T360M - Teledyne Monitor Labs

    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. ​

  • ​Gas Filter Correlation Carbon Monoxide Analyzer​

    Model T300 - Teledyne Monitor Labs

    The Model T300 measures low ranges of carbon monoxide 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 CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 14 meters. The energy loss through the sample cell is compared with the span 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 extreme sensitivity. 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 T300 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​.​​

  • Fully Automatic Colorimeter

    DRK103C - Shandong Drick Instruments Co., Ltd.

    (1)5 inch TFT color LCD touch screen, the operation is more humanized, new users can be mastered in a short period of time using the method.(2)Simulation of D65 lighting lighting, using CIE1964 complementary color system and CIE1976 (L*a*b*) color space color difference formula.(3)The motherboard brand new design, using the latest technology, CPU uses 32 bits ARM processor,improve the processing speed, the calculated data is more accurate and rapid electromechanical integration design, abandon cumbersome testing process of the artificial hand wheel is rotated, the real implementation of the test program, a determination of the accurate and efficient.(4)Using d/o lighting and observation geometry, diffuse ball diameter 150mm, diameter of the testing hole is 25mm.(5) A light absorber, eliminate the effect of specular reflection.(6)Add printer and imported thermal printer, without the use of ink and color, no noise when working, fast printing speed.(7) Reference sample can be physical, but also for data,? Can store up to ten only memory reference information.(8) Has the memory function, even if the long-term shutdown loss of power, memory zeroing, calibration, standard sample and a reference sample values of the useful information is not lost.(9) Equipped with a standard RS232 interface, can communicate with computer software.

  • ELT STALKER Vector-finder

    VF-121 - National RF, Inc

    The Vector-Finder Types VF-121 and VF 121A are unique in the Vector-finder series of direction finding antennas. They incorporate a proven design, electro statically shielded loop sensing element with modern solid state low noise analog and digital technology to allow detection and location of aircraft band signals. Both the VF-121 and the VF 121A incorporate a unique digital modulator which allows the user to more easily home-in on unmodulated carriers. Such cases occur at airports when transmitter may be accidentally keyed on during aircraft overnight layovers. The VF-121 is specifically designed to be used on airport premises where signal strengths are high. To compensate for very strong signals, an integral attenuator is also incorporated to allow the user to operate the unit close-in to aircraft. The VF-121A differs in that a high gain, low-noise preamplifier is utilized with the sensing element in order to hunt signals that may be weak or at a distance. The unit is ideally suited for the location of ELT transmitters in the field. Both units are tunable over the 118 MHz to 130 MHz aircraft frequencies and interface directly to the user’s aircraft band receiver or transceiver via the antenna jack. With the antenna system connected to the receiver, the user will hear the desired signal. If the signal is unmodulated, the digital modulator will generate a tone on the carrier. When the handheld unit is rotated about, an audible null on the received signal or the generated tone will be heard. This null aligns with the axis of the equipment case and represents the direction of the received signal. This direction may be read from the black dial compass mounted on the top of the enclosure. As the response is bi-directional, triangulation may be used to determine the true bearing when the true direction is not known.

  • Power Supply

    NZXT HALE90 750w - Rexus Corp.

    *80+ Gold certified: The HALE 90 series from NZXT operates at ultra high efficiency, at 20%, 50% and 100% loads, efficiencies are 87%, 90%, and 87% respectively.*Single140mm two ball-bearing fan operates with minimal noise even at full load. Maximum decibel levels are 20db for wattages between 550-750W and 30db for 850W and above.*Strong Single Rail Design: A single +12V rail provides stability and ease of use making the most out of your power supply. Offers stable & clean current delivery under heavy load.*Modular cable design: Modular cable design allows the user to pick and choose which cables they want to use, optimizing cable management and airflow inside the chassis. Flat cables allow for easier routing and bending inside the computer chassis during wire management.*Hybrid LLC resonant Topology circuitry allows the HALE series to create highly efficient power supplies ranging from 550W-> 1000W.*Full range Design from 100V – 250V with Active PFC.*100% Japanese Capacitors: High quality components for longer life time and better reliability.*Latest CPU support for all the latest INTEL and AMD CPUs like Corei7, i5, AMD Phenom II X4, X3.*Latest GPU support, ideal for latest DX11 GPUs and comes with 8pin and 8(6+2) pin PCI-E connectors.*Large tower support: The Hale Series of power supplies have extended 8pin CPU connectors for wire management in large cases which have PSUs mounted at the bottom.*Compliance with ATX 12V v2.2, EPS 12V v2.91, and SSI EPS 12V v2.92 Specifications.*Environmentally Responsible: Consuming less than 1W during shut off status Complies with the newest EuP ( Energy-using Products) requirements and USA Energy star standards.*Continuous Power: The HALE 90 series listed wattage is the continuous operating wattage.*Keeping it safe: The HALE series offers over voltage, current, power, under voltage, and short circuit protection. The power supply will automatically shutdown to prevent any damage to your system or misuse.

  • 40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger

    SD750100G - Zhejiang Sandi Electric Co., Ltd

    40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger is for DC battery system charging station. With three-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. 50-500Vdc output voltage range optional, suitable for all types of batteries.FeaturesProduct Introduction:SAND AC/DC Charger is specially developed for DC chargers module. It has high efficiency, high power factor, high power density, high reliability advantage. AC input 3 phase or single phase, DC output voltage range from 100 to 750VDC can be set, compliant with CE safety requirements, EMC standard EN61000-6-3 and EN61000-6-1 Class A, it is an advanced international level charger module.Unique function:● High efficiency over the full load range, full load efficiency greater than 95.5%● Wide output voltage range, 100-750VDC, suitable for a wide range of Lithium and lead acid battery● 5-inch LCD touch screen, easy to operate● Flexible application, charging voltage, charging current, charging time, timing charging can be set by LCD screen, easy to operateMain features:● Powerful protection, overheating, short circuit, overload, overvoltage, undervoltage, etc.● Three phase active power factor correction technology, reduces the harmonic interference to the grid● Dual DSP design, achieve the full digital control, less components means high reliability● Wide input voltage range, allows operation in most poor grid conditions● Soft start charging and soft shutdown minimize the impact on the battery.● Input, output have protective circuit breaker switch● Module adopts hot pluggable design, which is convenient for maintenance.● CAN/RS485 interface (Optional)SpecificationModel SD750100GAC input Input system Three phases + PEVoltage range 280Vac ~500VacRated voltage 440VacFrequency range 50Hz/60HzMaximum current <74AITHD (total harmonic distortion) <5%DC output Output power 40KWVoltage range 50-750Vdc ( can set)Constant power output voltage range 400Vdc-750VdcOutput current range (A) 100A ( 1~100A can set)Output current limit 1-100A continuously adjustableSteady voltage precision <±0.5%Steady current precision ≤±1% (rated range of 20% ~ 100% for output load)Load regulation rate ≤±0.5%Startup overshoot ≤±3%Peak-to-peak value noise ≤1% (200~1000V, 0~20MHz)Display Indication Light Green LED: normal operation,Yellow LED: alarm, Red LED: failureDisplay language EnglishDisplay 5’ LCD touch screenPower factor and THD Power factor ≥0.90 Full-load output power of @20%~50%≥0.98 Full-load output power of @50%~100%≥0.99 Full-load output power, input nominal voltage and frequency of @100%THD ≤5% Full-load output power of @50%~100%Protection function input overvoltage Protection Over Under Voltage automatic shutdown and restart when voltage return normalOutput overvoltage protection Over Under Voltage automatic shutdown and restart when voltage return normalOver-temperature protection Automatic shutdown. Automatic restart when the temperature return to normalShort circuit protection Automatic shutdown and lock, need power off to restart to unlockEfficiency Under Rated input voltage ≥95.2%

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