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  • VA-2230A 音頻分析儀

VA-2230A 音頻分析儀

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惠州市希譜達儀器有限公司,簡稱希譜達,于2015年在惠州成立。注冊資金200萬元整。擁有一支專業的合作團隊:資金雄厚,貨物來源寬廣,庫存充足,銷售市場廣泛,售后服務快捷。通過與分銷伙伴的緊密合作,憑借覆蓋全國的網絡營銷服務,致力于為客戶提供更專業、方便、快捷的本地化服務。希譜達長期致力于工業電子制造、文教科研、通信以及電力石化等領域的測試測量技術開發、產品配套和系統集成。希譜達能夠根據客戶的使用需求,為客戶提供各種針對行業應用的完整測試解決方案,同時可以為國內客戶提供國際通行的電子測試儀器租賃、維修解決方案。對視頻、射頻、信號源、綜合測試儀、安規測試儀、電性能測試儀器儀表等、及自動動化設備的程控電路、各種型號SMT (貼片機)電路板部分維護維修等;希譜達也已成為集電子儀器銷售、維修、租賃為一體的綜合服務商。
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OutlineTheVA-2230Aisahigh-performance??à???multifunctionaudioanalyzerfeaturingameasuringsignalgeneratorwithfastresponseandhighstabilityand10measuringfunctions
VA-2230A 音頻分析儀 產品詳情
Outline
The VA-2230A is a high-performance??à??? multifunction audio analyzer featuring a measuring signal generator with fast response and high stability and 10 measuring functions. It consists of
a measuring signal generation block incorporating a programmable (DDS) oscillator and high-speed measurement block which processes signals using
a notch filter??à??? HPF and LPF and applies DSP computations. The 10 measuring functions include the frequency measurement??à??? AC level measurement with a wide bandwidth up to 210 kHz??à??? wattage measurement??à??? total distortion measurement??à??? total harmonic distortion measurement??à??? high-order harmonic analysis??à??? S/N ratio measurement??à??? L/R ratio measurement??à??? SINAD measurement and DC level measurement. These functions can be used independently or can also be combined with the signal generation block to build audio measuring systems with low noise??à??? high accuracy and high speed. With digital technology invested everywhere??à??? the VA-2230A makes possible fully automated measurements including automatic range switching and automatically synchronized measurement data output. In addition??à??? it is also packed with a multiplicity of versatile functions including
a preset memory for storing and recalling up to 100 measure-ment condition settings??à???
a limiting function using zone display with GO/NO-GO judgment of the measurement results??à??? an auto sequencing function which recalls the preset memory settings in sequence??à??? a printer output for printing the measurement results??à??? an EXT I/O for remote control and
a GP-IB as standard.
Features
DSP for Measurements Based on FFT Computations
True rms measurements based on FFT are made possible by the DSP. The distortion measurements include the total distortion measurement (THD N) as well as the total harmonic distortion measurement (THD) and the harmonic analysis (HD) which have previously been available only with high-grade tools.

DDS Signal Generator with Low Distortion
The signal generator is capable of low-distortion signal oscillation based on the DDS (Direct Digital Synthesizer) method with a high 50 ppm frequency stability.
The setting can be made at a high speed.

Large LCD for Versatile Display
Three display modes include a numeric display mode (PAGE 1), an analog meter mode (PAGE 2) and a limit mode for use in GO/NO-GO judgments (PAGE 3).

Excellent Operability
Menu operations are performed based on selections using function keys, while direct keys are used to switch the output channels and measuring items. The output value settings can be modified using the numeric keys or the jog /shuttle keys.

GP-IB Provided as Standard
The GP-IB is now standard production line item. It also makes system expansion easy by enabling the transfer of memory contents between tools of the same model (memory copy), and the synchronized recalling of preset memory, etc.

Floating Switching
The GND circuits of the signal generation block, AC measurement block and DC measurement block are separate and each can be floated from the cabinet independently of the others.

SINAD Measurement
The SINAD measurement makes the analyzer usable in the field of communications equipment as well as in the field of audio equipment.

Two Input/Output Channels
While the signal generation and measurement blocks are composed of single-channel circuitry, signal switchers are built in to allow the input and output of 2 channels of signals. This makes possible the measurements of crosstalk, signal separation and L/R ratios.

Other Major Features
●The frequency range of the frequency counter and AC level measurement functions is expanded up to 210 kHz to enable the head bias adjustment of the tape decks.
●Relative measurement is possible in AC level measurement while wattage display (virtual load) is possible when simulating a loudspeaker, etc.
●The BAL/UNBAL input capabilities make possible the non-grounded measurement of high-power amplifiers, etc.
●100-step sequence memory, which can be divided into 10 groups.
●I/O ports for external control and printing out.


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