音頻分析儀 TYPE 2012

廠家: 丹麥 Bruel & Kjaer
尺寸: 12x17x16英寸
重量: 71.6 lbs

Type 2012 The Type 2012 Audio Analyzer is a powerful instrument for transducer maesurements and system analysis. It features a colour screen, built-in 3½” floppy disk drive, IEEE-488 and RS-232-C interfaces, three measurement modes and an Auto Sequence facility. The Time Selective Response mode enables extremely fast, accurate, swept sine measurements of the free-field response of a transducer in an ordinary room up to the 20th harmonic. The Steady State Response mode enables stepped sine measurements of Harmonic, Difference Frequency and Intermodulation distortion. The 2012 also incorporates a 1600 line single-channel FFT for spectrum measurements. Type 2012 has numerous post-processing capabilities: Windowing, block arithmetic, addition of poles and zeros, square and square root, absolute value, and editing of response data. Applications include development and quality control testing of loudspeakers, telephones, microphones and other electroacoustic and vibration transducers.

產品特點：

頻率范圍: 1Hz to 40kHz+/-0.1dB
失真噪聲: <-80 dB re full scale input
Transducer workstation with three different measurement modes:
TSR - Time Selective Response
SSR - Steady State Response
FFT - Fast Fourier Transform
12” high-resolution colour monitor
Up to 36 curves can be displayed simultaneously
Fast time selective measurement of complex response in both time and frequency domains - up to 20th harmonic
Automated measurements of individual Harmonic, Intermodulation, and Difference Frequency distortion components
1600 line FFT spectrum
User-definable Auto Sequences
Extensive post-processing facilities : +, -, *, /, 1/x, x2, √x, |x|, poles, zeros, windowing, editing, smoothing
On-screen help facility - in English, French or German
Input autoranging
Preamplifier (microphone) and balanced or singleended direct inputs
Two separate built-in sine engerators
Built-in 3½”, 1.44Mbyte, PC/ MS-DOS compatible floppy disk drive for storage of data, setups, and Auto Sequences
Hard copy facility for plotters and printers, both colour and monochrome, direct or via disk
IEEE-488/IEC 625-1 and RS-232-C接口

應用：

Development and Quality control testing of electroacoustic and vibration transducers: loudspeakers, telephones, headphones, microphones, hearingaids, hydrophones, accelerometers

Linear and non-linear system analysis
Propagation path identification
Acoustical measurements in rooms and vehicles

General
Hardware
Frequency range	1 Hz - 40 kHz +/-0.1dB
Distortion and Noise	<-80 dB re full scale input
Number of channels	1
Digital input/output	X
IEPE signal conditioning	X
hard disk	X
memory	4MB
monitor	12 inch CRT, VGA
computer interfaces	RS-232 (print only) & IEEE-488
operating system	proprietary
Functionality
manual signal generator	V
multimeter	X
oscilloscope	X
spectrum analyzer	V
real time analzyer (CPB)	X
Stimuli
sine sweep	V
two tone	V
multitone	X
pink & white noise	X
arbitrary waveform	X
equalization	V 2012 can only eq sine
Analysis
Heterodyne	V
FFT	1600 lines
Harmonics, THD, & IM distortion	V
THD+Noise	X
Time Selective Response	V
Impulse Response	V
Dual-Channel	X
Time Envelope	V
Loose particle detection	X
Impedance	V
Post-processing
arithmetic	V
constant	V
unary	V
scalar	V
smoothing	V
user equation	X
directivity index	X
nth octave synthesis	V
intersection	X
Limits
absolute	V
floating	V
aligned	V
waveforms	X
Display
polar plots	X
pictures	X
tables	X
number of displays	2
Documentation
HTML	X
Excel	X
Word	X
HPGL	V
database	X
ascii	V
Miscellaneous
Statistics	X
Test sequences	V