￥供VA-2230A 音頻分析儀VA-2230A/鄧美芳（經理）13066807555


深圳佳捷倫電子儀器有限公司


聯系人：鄧美芳（經理）13066807555/馬曉麗15112654880
 
Q Q在線：2355633975


公司電話：0755-89518111/89519600


聯絡傳真：0755-28887788


全國座機免費服務熱線：800-900-9128


免長途通話費服務熱線：400-996-9128


地址：深圳市福田區深南中路國際科技大廈22樓03號


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.